6,086 results match your criteria Skeletal radiology[Journal]


Sonographic landmarks in hamstring muscles.

Skeletal Radiol 2019 Apr 17. Epub 2019 Apr 17.

Department of Radiology, Diagnóstico Médico Cantabria (DMC), Santander, Cantabria, Spain.

The ultrasound examination of hamstrings inspires respect due to the connective complexity of their structures, particularly for sonographers who are not used to this kind of study. Therefore, it is important to know the specific ultrasound reference points that facilitate the location of the hamstring structures, dividing them into four areas of interest: (a) tendinous origin of the hamstring, (b) the proximal half, (c) distal and medial half, and (d) distal and lateral half. The origin of the hamstrings is found at the level of the ischial tuberosity. Read More

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http://dx.doi.org/10.1007/s00256-019-03208-xDOI Listing

Upper extremity myxofibrosarcoma mimicking an erosive inflammatory arthritis: a case report.

Skeletal Radiol 2019 Apr 15. Epub 2019 Apr 15.

Imaging Institute, Cleveland Clinic, 9500 Euclid Ave. A21, Cleveland, OH, 44195, USA.

Myxofibrosarcoma is a malignant fibroblastic soft tissue neoplasm containing a variable amount of myxoid stroma that commonly presents as a slow-growing mass in elderly patients. The neoplasm may be superficial or deep to the muscle fascia and characteristically has an infiltrative growth pattern with a dominant or multinodular mass. We describe an unusual case of high-grade myxofibrosarcoma of the wrist and forearm that infiltrated the muscles, tendons, and wrist joint, causing bone erosions. Read More

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http://link.springer.com/10.1007/s00256-019-03217-w
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http://dx.doi.org/10.1007/s00256-019-03217-wDOI Listing
April 2019
1 Read

Congenital bilateral absence of the semimembranosus muscles.

Authors:
A Ross Sussmann

Skeletal Radiol 2019 Apr 15. Epub 2019 Apr 15.

University Radiology Group, 579A Cranbury Road, East Brunswick, NJ, 08816, USA.

Variations of the anatomy of the hamstring muscle complex are uncommon. In particular, absence of some or all of the hamstring muscles is rarely described in the literature. This report presents a case of absent semimembranosus musculature detected incidentally on knee magnetic resonance imaging (MRI), then found to be bilateral on MRI of both thighs performed shortly thereafter. Read More

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http://dx.doi.org/10.1007/s00256-019-03210-3DOI Listing

Detection of aseptic loosening in total knee replacements: a systematic review and meta-analysis.

Skeletal Radiol 2019 Apr 12. Epub 2019 Apr 12.

Department of Medicine, University of Sydney, Sydney, Australia.

Objective: The aim of this study was to compare the diagnostic accuracy of nuclear imaging modalities in the detection of aseptic loosening of total knee arthroplasty (TKA).

Materials And Methods: MEDLINE, EMBASE, and the Cochrane Database of Systematic Reviews were searched from database inception to December 2018 in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Included studies compared the results of a single imaging modality against an appropriate reference standard of prosthetic TKA loosening, with sufficient information to determine either sensitivity and/or specificity. Read More

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http://link.springer.com/10.1007/s00256-019-03215-y
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http://dx.doi.org/10.1007/s00256-019-03215-yDOI Listing
April 2019
2 Reads

Reliability and diagnostic utility of radiographs in patients with incomplete atypical femoral fractures.

Skeletal Radiol 2019 Apr 10. Epub 2019 Apr 10.

Faculty of Medicine, Department of Orthopaedics and Traumatology, Mugla Sitki Kocman University, 48000, Mentese, Mugla, Turkey.

Objective: The aim of this study was to evaluate the sensitivity and specificity of radiographs in identifying incomplete atypical femoral fractures and to determine interobserver and intra-observer reliability.

Materials And Methods: Anterior-posterior and lateral radiographs of 10 femurs with incomplete atypical femoral fractures confirmed using bone scintigraphy and magnetic resonance imaging, and 40 femurs without incomplete atypical femoral fractures confirmed using bone scintigraphy, were reviewed by 4 orthopedic surgeons and 4 radiology specialists. Sensitivity, specificity, accuracy, positive predictive value, and negative predictive value were calculated to determine a diagnosis of incomplete atypical femoral fractures. Read More

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http://dx.doi.org/10.1007/s00256-019-03212-1DOI Listing

Diagnostic accuracy of MRI for detection of tears and instability of proximal long head of biceps tendon: an evaluation of 100 shoulders compared with arthroscopy.

Skeletal Radiol 2019 Apr 2. Epub 2019 Apr 2.

Department of Radiology and Oncology, School of Medicine, University of São Paulo (USP), 333 Dr. Ovídio Pires de Campos street, ground floor, Cerqueira César, São Paulo, SP, 05403-010, Brazil.

Objective: To evaluate the diagnostic accuracy of magnetic resonance imaging (MRI) for detection of instability and tears of the proximal long head of biceps tendon (LHBT). To assess intraobserver and interobserver agreement.

Materials And Methods: We performed a retrospective analysis of prospectively collected data of 100 consecutive shoulders who underwent non-contrast 1. Read More

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http://dx.doi.org/10.1007/s00256-019-03214-zDOI Listing
April 2019
1 Read

Dual steristrip technique: a novel use of steristrips to reduce operator radiation dose during CT-guided intervention.

Skeletal Radiol 2019 Mar 30. Epub 2019 Mar 30.

Department of Musculoskeletal Radiology, Royal Orthopaedic Hospital NHS Foundation Trust, Bristol Road South, Northfield, Birmingham, UK.

Objective: We describe a novel and safe needle-holding method that we have termed the 'dual steristrip technique'. This technique can be used to stabilize the bone biopsy needle without the need for the radiologist's hand to be in close proximity to the X-ray beam during CT-guided intervention.

Materials And Methods: The dual steristrip technique uses steristrips to stabilize the bone biopsy needle and allows for accurate assessment of needle position and trajectory. Read More

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http://dx.doi.org/10.1007/s00256-019-03211-2DOI Listing

MR imaging of the postsurgical cubital tunnel: an imaging review of the cubital tunnel, cubital tunnel syndrome, and associated surgical techniques.

Skeletal Radiol 2019 Mar 28. Epub 2019 Mar 28.

Department of Surgery, Division of Plastic Surgery, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.

Ulnar nerve compression at the elbow, specifically the cubital tunnel, is the second most common upper extremity compression neuropathy. Many patients presenting with compression symptoms will subsequently undergo surgical intervention. We review the open surgical treatment of cubital tunnel syndrome and review the expected postoperative imaging appearance of those treatments on magnetic resonance imaging (MR), including: simple or in situ decompression, medial epicondylectomy, and anterior transposition, including subcutaneous, intramuscular, and submuscular variants. Read More

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http://dx.doi.org/10.1007/s00256-019-03203-2DOI Listing
March 2019
1 Read

The lateral patellar retinaculum defect: anatomical study using ultrasound.

Skeletal Radiol 2019 Mar 26. Epub 2019 Mar 26.

Hôpital Sainte Marguerite, 13009, Marseille, France.

Objective: The purpose of this study was to evaluate whether ultrasound allows precise assessment of a focal defect at the lateral patellar retinaculum (LPR) and to determine its anatomical significance.

Materials And Methods: This work was initially undertaken in four cadaveric specimens and followed by high-resolution ultrasound study in 48 healthy adult volunteers (96 knees) by two musculoskeletal radiologists. Dimension and location of the LPR defect and its relations to adjacent anatomical structures were analyzed. Read More

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http://dx.doi.org/10.1007/s00256-019-03209-wDOI Listing
March 2019
1 Read

Camptodactyly resulting from anatomical variation of lumbrical muscles: imaging findings.

Skeletal Radiol 2019 Mar 25. Epub 2019 Mar 25.

Department of Radiology, ASZ Aalst, Merestraat 80, 9300, Aalst, Belgium.

We report three cases of camptodactyly in adolescent patients, presenting with a passive flexion deformity of the fifth finger. Ultrasound findings include aberrant lumbrical insertion and decreased lumbrical size, confirmed with magnetic resonance imaging, and aberrant dynamics. Surgery confirmed these findings in one patient. Read More

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http://dx.doi.org/10.1007/s00256-019-03202-3DOI Listing

Epithelioid schwannoma: imaging findings on radiographs, MRI, and ultrasound.

Skeletal Radiol 2019 Mar 22. Epub 2019 Mar 22.

Department of Radiology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.

Epithelioid schwannoma is an uncommon benign peripheral nerve sheath tumor, with distinct morphological and pathological features. To our knowledge, the imaging features of epithelioid schwannoma have not been described. In this case report, we describe the imaging findings of a pathologically proven case of epithelioid schwannoma presenting as a slowly growing painless mass near the ankle. Read More

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http://dx.doi.org/10.1007/s00256-019-03199-9DOI Listing

Review article: the differential diagnosis of bone marrow edema on wrist MRI.

Skeletal Radiol 2019 Mar 22. Epub 2019 Mar 22.

Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, UK.

There is a large variety of conditions that can result in 'bone marrow edema' or 'bone marrow lesions' (BML) in the wrist on magnetic resonance imaging (MRI). The combination of clinical history and the distribution of the BML can serve as a valuable clue to a specific diagnosis. This article illustrates the different patterns of BML in the wrist to serve as a useful guide when reviewing wrist MRI studies. Read More

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http://dx.doi.org/10.1007/s00256-019-03204-1DOI Listing

Small soft tissue masses indeterminate at imaging: histological diagnoses at a tertiary orthopedic oncology clinic.

Skeletal Radiol 2019 Mar 22. Epub 2019 Mar 22.

Department of Radiology, University of Miami Miller School of Medicine/Jackson Memorial Hospital, 1611 NW 12th Ave, JMH WW 279, Miami, FL, 33136, USA.

Objective: To review histologic diagnoses of soft-tissue masses (STMs) ≤ 2 cm with indeterminate imaging features encountered in musculoskeletal oncology clinic at a tertiary referral center.

Materials And Methods: This was an IRB-approved retrospective review of patients with STMs ≤ 2 cm, referred to our tertiary care orthopedic oncology clinic over 4.75 consecutive years. Read More

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http://link.springer.com/10.1007/s00256-019-03205-0
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http://dx.doi.org/10.1007/s00256-019-03205-0DOI Listing
March 2019
7 Reads

Increased signal in the proximal patellar tendon: normal or pathologic?

Skeletal Radiol 2019 Mar 21. Epub 2019 Mar 21.

Department of Radiology, UCLA Health System, Los Angeles, CA, USA.

Objective: To determine the clinical significance of T2 signal hyperintensity in the proximal patellar tendon seen on MRI of the knee.

Materials And Methods: MRIs of 100 patients who underwent MRI of the knee between 1 May 2018 and 15 July 2018 were retrospectively evaluated. All examinations were performed on 3-Tesla MRI scanners with a dedicated knee coil and in accordance with our institution's standard knee MRI protocol. Read More

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http://dx.doi.org/10.1007/s00256-019-03196-yDOI Listing
March 2019
2 Reads

Full-spine radiographs: what others are reporting-a survey of Society of Skeletal Radiology members.

Skeletal Radiol 2019 Mar 12. Epub 2019 Mar 12.

Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN, USA.

Objective: Full-spine radiographs are frequently ordered by spinal deformity surgeons to assess spinal imbalance. The radiologist interpretation of these films varies amongst providers. Detailed numeric measurements of the deformity are time-consuming. Read More

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http://dx.doi.org/10.1007/s00256-019-03194-0DOI Listing

Diagnostic accuracy of imaging modalities in the detection of clinically diagnosed de Quervain's syndrome: a systematic review.

Skeletal Radiol 2019 Mar 19. Epub 2019 Mar 19.

La Trobe Sport and Exercise Medicine Research Centre; College of Science, Health and Engineering, La Trobe University, Bundoora, Australia.

Objectives: To collate and synthesise the literature to provide estimates of the diagnostic accuracy of imaging modalities, and summarise the reported imaging findings associated with de Quervain's syndrome.

Materials And Methods: A systematic search was performed in seven databases (MEDLINE, EMBASE, CINAHL, Cochrane Library, PROSPERO, Web of Science, and ProQuest Dissertations & Theses Global). Two reviewers independently performed screening, data extraction and quality assessment using a modified Quality Assessment of Diagnostic Accuracy Studies-2. Read More

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http://dx.doi.org/10.1007/s00256-019-03195-zDOI Listing
March 2019
2 Reads

A rare case of type 2 entrapment of the median nerve after posterior elbow dislocation with MRI and ultrasound correlation.

Skeletal Radiol 2019 Mar 13. Epub 2019 Mar 13.

Department of Orthopedics, Medical University of South Carolina, Charleston, SC, USA.

A 9-year-old boy sustained an ulnohumeral dislocation with a medial epicondyle fracture and experienced incomplete post-traumatic median nerve palsy in addition to post-traumatic stiffness following closed reduction and cast immobilization. When his motor palsy and stiffness did not improve, MRI and ultrasound were obtained, which demonstrated entrapment of the median nerve in an osseous tunnel at the fracture site, compatible with type 2 median nerve entrapment. Subsequently, the patient underwent surgery to mobilize the medial epicondyle and free the median nerve, resulting in improved range of motion, near complete restoration of motor function, and complete restoration of sensory function in the median nerve distribution within 6 months of surgery. Read More

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http://dx.doi.org/10.1007/s00256-019-03201-4DOI Listing
March 2019
1 Read

Thinking beyond pannus: a review of retro-odontoid pseudotumor due to rheumatoid and non-rheumatoid etiologies.

Skeletal Radiol 2019 Mar 13. Epub 2019 Mar 13.

Department of Radiology, Division of Musculoskeletal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA.

Retro-odontoid pseudotumor, or mass-like retro-odontoid soft tissue thickening, is an uncommon but important imaging finding that may be associated with rheumatoid arthritis, crystal deposition diseases, as well as non-inflammatory conditions such as cervical degenerative changes and mechanical alterations. Retro-odontoid pseudotumor is commonly associated with atlantoaxial microinstability or subluxation. MRI and CT have an important role in the detection and diagnosis of retro-odontoid pseudotumor. Read More

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http://dx.doi.org/10.1007/s00256-019-03187-zDOI Listing
March 2019
1 Read

Myoepithelial carcinoma of tibia mimic giant cell tumor: a case report with emphasis on MR features.

Skeletal Radiol 2019 Mar 13. Epub 2019 Mar 13.

Department of Medical Imaging, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang Dist., Tainan City, 710, Taiwan.

Intraosseous myoepithelial carcinoma is an extremely rare type of bone tumor that most often presents in the long tubular bones, but also occurs in small tubular bones and the axial skeleton. We report the radiographic images and complete magnetic resonance (MR) features of a 44-year-old male with right knee pain of 7 months' duration. The radiographic findings and convention MR images indicated a giant cell tumor of the bone. Read More

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http://dx.doi.org/10.1007/s00256-019-03198-wDOI Listing

Coracoid stress fracture in an elite fast bowler: description of a technique for CT-guided percutaneous screw fixation of coracoid fractures.

Skeletal Radiol 2019 Mar 11. Epub 2019 Mar 11.

Cape Radiology, Cape Town, South Africa.

Coracoid stress fractures are a rare sports injury but present a management challenge, with the focus on optimising return-to-play, whilst minimising complications. Potential contributing mechanisms for the injury are briefly discussed and a novel approach to accurate fracture fixation under CT guidance is described. The ability of radiologists to orient themselves in 3D with a volume dataset on a workstation provides an image-guided option for percutaneous fixation that minimises risk of complications. Read More

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http://dx.doi.org/10.1007/s00256-019-03184-2DOI Listing
March 2019
1 Read

"Should we measure?" and more importantly, "should we report?" Perspective from an adult orthopaedic deformity surgeon.

Authors:
Francis H Shen

Skeletal Radiol 2019 Mar 11. Epub 2019 Mar 11.

Department of Orthopaedic Surgery, University of Virginia Health Sciences System, Charlottesville, VA, 22908, USA.

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http://dx.doi.org/10.1007/s00256-019-3154-2DOI Listing

Osteoblastoma of the clavicle at the site of a previous fracture-first case report and review of the literature.

Skeletal Radiol 2019 Mar 8. Epub 2019 Mar 8.

Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street Yawkey 6E, Boston, MA, 02114, USA.

Osteoblastoma is a rare, benign primary tumor of bone, accounting for < 1% of all bone tumors. We report the case of a 27-year-old female who developed pain and swelling five and a half years after a clavicular fracture and was subsequently found to have an osteoblastoma arising at the fracture site. This is the first reported case of an osteoblastoma developing after a fracture, although osteoid osteomas, which are histologically indistinguishable from osteoblastomas, have been reported at prior fracture sites. Read More

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http://link.springer.com/10.1007/s00256-019-03197-x
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http://dx.doi.org/10.1007/s00256-019-03197-xDOI Listing
March 2019
12 Reads

Diffusion tensor imaging of diabetic amyotrophy.

Skeletal Radiol 2019 Mar 7. Epub 2019 Mar 7.

UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390-9178, USA.

Objective: To qualitatively and quantitatively characterize the nerves of patients with diabetic amyotrophy (DA) using magnetic resonance neurography (MRN) with diffusion tensor imaging (DTI).

Materials And Methods: Forty controls and 13 DA cases were analyzed. 1. Read More

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http://dx.doi.org/10.1007/s00256-019-03182-4DOI Listing
March 2019
2 Reads

Are patients more likely to have hip osteoarthritis progression and femoral head collapse after hip steroid/anesthetic injections? A retrospective observational study.

Skeletal Radiol 2019 Mar 6. Epub 2019 Mar 6.

Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street Yawkey 6E, Boston, MA, 02114, USA.

Objective: To evaluate progression of osteoarthritis and femoral head articular surface collapse in hip steroid/anesthetic injection patients (HIPs).

Materials And Methods: This study was IRB-approved and HIPAA-compliant. Two musculoskeletal radiologists performed retrospective, blinded reviews of radiography for 70 HIPs (40 mg triamcinolone/4 mL 0. Read More

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http://dx.doi.org/10.1007/s00256-019-03189-xDOI Listing
March 2019
1 Read

Treatment-related alterations of imaging findings in osteoid osteoma after percutaneous radiofrequency ablation.

Skeletal Radiol 2019 Mar 6. Epub 2019 Mar 6.

Gazi University Faculty of Medicine, Department of Radiology, Gazi Hastanesi, Besevler, 06500, Ankara, Turkey.

Objectives: We aimed to report the long-term outcomes of osteoid osteoma patients and to determine CT and dynamic contrast-enhanced MR imaging characteristics of radiofrequency ablation (RFA) treatment related changes of osteoid osteoma between follow-up periods.

Materials And Methods: Thirty patients (seven female, 23 male) who underwent CT-guided RFA of osteoid osteoma were included. Follow-up imaging examinations were divided into two subgroups; first (1-3 months) and second (> 6 months) periods. Read More

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http://dx.doi.org/10.1007/s00256-019-03185-1DOI Listing
March 2019
1 Read

Fibular head avulsion fractures accompanying operative treated medial tibial plateau fractures.

Skeletal Radiol 2019 Mar 5. Epub 2019 Mar 5.

Department of Clinical Science, Intervention, and Technology, Karolinska Institute, Stockholm, Sweden.

Objective: The aims of this work are to determine how frequently medial tibial plateau fractures are accompanied by fibular head avulsion fractures and evaluate the sensitivity of radiographs detecting them, and also to assess if the presence of fibular fracture is correlated with long-term functional outcome and peroneal nerve damage.

Materials And Methods: A retrospective chart review of operated patients with medial tibial plateau fractures at level I trauma center during 2002-2008 was performed. From 63 patients imaged preoperatively, 59 had CT and radiographs, three had only CT, and one only radiograph. Read More

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http://dx.doi.org/10.1007/s00256-019-03191-3DOI Listing

Needle tenotomy with PRP versus lidocaine in epicondylopathy: clinical and ultrasonographic outcomes over twenty months.

Skeletal Radiol 2019 Mar 2. Epub 2019 Mar 2.

Regenerative Medicine, BioCruces Health Research Institute, Cruces University Hospital, 48903, Barakaldo, Spain.

Objective: To investigate whether pathological changes in elbow epicondylopathy, as assessed by conventional ultrasonography and clinical outcomes, could be modified following tenotomy with platelet-rich plasma (PRP) versus tenotomy with lidocaine.

Methods: This prospective sub-study was part of a patient- and assessor-blinded, superiority-type, randomized, lidocaine-controlled trial that was performed in a tertiary hospital to assess the effectiveness of PRP versus lidocaine as tenotomy adjuvants in patients with epicondylopathy. Patients were followed after two sessions of tenotomy with either PRP or lidocaine adjuvants (4 ml) within a 2-week interval. Read More

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http://dx.doi.org/10.1007/s00256-019-03193-1DOI Listing
March 2019
3 Reads

Lateral foot pain due to os vesalianum pedis in a young football player; a case report and review of the current literature.

Skeletal Radiol 2019 Feb 27. Epub 2019 Feb 27.

Medical Faculty, Department of Anatomy, Akdeniz University, Antalya, Turkey.

Os vesalianum pedis is a rare accessory ossicle located at the 5th metatarsal base. This anatomic variation is typically asymptomatic and usually detected incidentally on routine foot radiographs. However, it may be a source of lateral foot pain and rarely become symptomatic following traumatic ankle injuries such as an inversion ankle sprain. Read More

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http://dx.doi.org/10.1007/s00256-019-03190-4DOI Listing
February 2019

Muscle shear wave elastography in idiopathic inflammatory myopathies: a case-control study with MRI correlation.

Skeletal Radiol 2019 Feb 27. Epub 2019 Feb 27.

Leeds Institute of Rheumatic and Musculoskeletal Medicine, 2nd Floor, Chapel Allerton Hospital, University of Leeds, Chapeltown Road, Leeds, LS7 4SA, UK.

Objective: To investigate muscle stiffness in patients with idiopathic inflammatory myopathies (IIM) using shear wave elastography (SWE) and to correlate the results with muscle strength and MRI features of myositis.

Materials And Methods: Muscle shear wave velocity (SWV) was measured in 23 active IIM patients (13 females, mean age 50.4 ± 16. Read More

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http://dx.doi.org/10.1007/s00256-019-03175-3DOI Listing
February 2019

Aneurysmal bone cyst treated with percutaneous doxycycline: is a single treatment sufficient?

Skeletal Radiol 2019 May 26;48(5):765-771. Epub 2019 Feb 26.

Anatomy and Medical Imaging, University of Auckland, Park Road, Grafton, Auckland, 1023, New Zealand.

Objective: The purpose of this case series is to report on the effectiveness of a single percutaneous injection of doxycycline as a primary treatment for aneurysmal bone cyst (ABC).

Materials And Methods: A retrospective cohort study was conducted on seven patients diagnosed with ABC at various anatomical sites, with the intention to treat by a single percutaneous injection of doxycycline. Mean patient age was 14 years. Read More

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http://dx.doi.org/10.1007/s00256-019-03188-yDOI Listing
May 2019
2 Reads

MR and ultrasound of the hands and wrists in rheumatoid arthritis. Part II. Added clinical value.

Authors:
David A Rubin

Skeletal Radiol 2019 Feb 26. Epub 2019 Feb 26.

Department of Radiology, Washington University School of Medicine, 510 South Kingshighway Blvd., St. Louis, MO, 63110, USA.

Advanced imaging has become just as vital for diagnosing, staging, and monitoring disease in rheumatoid arthritis (RA) patients as it is for cancer patients. Part 1 of this review discussed synovitis, tenosynovitis, erosions, and osteitis-key imaging findings that occur in patients with RA. Part 2 will now show how these features, in combination with clinical and serologic data, can assist clinical decision-making at various stages of a patient's disease course. Read More

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http://link.springer.com/10.1007/s00256-019-03180-6
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http://dx.doi.org/10.1007/s00256-019-03180-6DOI Listing
February 2019
4 Reads

Current peri-operative imaging concepts surrounding shoulder arthroplasty.

Skeletal Radiol 2019 Feb 23. Epub 2019 Feb 23.

Department of Orthopaedics, Duke University Hospital, 2301 Erwin Road, Durham, NC, 27710, USA.

Glenohumeral osteoarthritis is a prevalent degenerative disease that can lead to excruciating pain and debility. End-stage osteoarthritis can be treated by both conservative and surgical interventions. Along with a comprehensive history and physical exam, pre-operative imaging with plain radiographs, computerized tomography, and magnetic resonance imaging plays an essential role in the decision-making process guiding whether the patient undergoes a shoulder hemiarthroplasty, anatomic total shoulder arthroplasty, or a reverse total shoulder arthroplasty. Read More

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http://dx.doi.org/10.1007/s00256-019-03183-3DOI Listing
February 2019

The diagnostic accuracy of imaging modalities to detect pseudarthrosis after spinal fusion-a systematic review and meta-analysis of the literature.

Skeletal Radiol 2019 Feb 23. Epub 2019 Feb 23.

Department of Orthopaedic Surgery, Maastricht University Medical Center, Maastricht, The Netherlands.

Objective: The aim of the study was to determine the diagnostic accuracy of imaging modalities to detect pseudarthrosis after thoracolumbar spinal fusion, with surgical exploration as reference standard.

Materials And Methods: A systematic literature search for original studies was performed on the diagnostic accuracy of imaging as index test compared to surgical exploration as reference standard to diagnose pseudarthrosis after thoracolumbar spinal fusion. Diagnostic accuracy values were extracted and methodologic quality of studies was evaluated by the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) tool. Read More

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http://dx.doi.org/10.1007/s00256-019-03181-5DOI Listing
February 2019

MRI and ultrasound of the hands and wrists in rheumatoid arthritis. I. Imaging findings.

Authors:
David A Rubin

Skeletal Radiol 2019 May 23;48(5):677-695. Epub 2019 Feb 23.

Department of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, St. Louis, MO, 63110, USA.

The management of patients with rheumatoid arthritis (RA) has rapidly evolved with the development of newer disease-modifying drugs and the recognition that long-term damage can be mitigated by an earlier and more-informed use of these medications. Historically, radiographs were the mainstay of imaging in RA patients, but radiographic joint narrowing and erosions are late and insensitive findings in the disease. MRI (with intravenous contrast agent) and ultrasound (with power Doppler interrogation) of the hands and wrists are able to demonstrate erosions earlier and with greater sensitivity than radiographs. Read More

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http://dx.doi.org/10.1007/s00256-019-03179-zDOI Listing
May 2019
1 Read

Image intensifier distortion influences a surgeon's ability to aim guidewires during orthopaedic procedures.

Skeletal Radiol 2019 Feb 21. Epub 2019 Feb 21.

Trauma and Orthopaedic Research Unit, Canberra Hospital, Building 6 Level 1, PO Box 11, Woden, ACT, 2606, Australia.

Objective: Accurate insertion of a guidewire under image intensifier guidance is a fundamental skill required by orthopaedic surgeons. This study investigated how image intensifier distortion, which is composed of pin-cushion and sigmoidal components, changed the apparent trajectory of a guidewire, and the resulting deviation between the intended and actual guidewire tip position.

Materials And Methods: Intraoperative image intensifier images for 220 consecutive patients with hip fractures were retrospectively corrected for distortion using a global polynomial method. Read More

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http://dx.doi.org/10.1007/s00256-019-03171-7DOI Listing
February 2019
1 Read

Bennett lesions in overhead athletes and associated shoulder abnormalities on MRI.

Skeletal Radiol 2019 Feb 20. Epub 2019 Feb 20.

Department of Radiology, New York-Presbyterian Hospital-Columbia University Medical Center, 622 West 168th Street, MC-28, New York, NY, 10032, USA.

Objective: To determine if a Bennett lesion and its size are associated with additional MRI shoulder abnormalities in an overhead athlete.

Materials And Methods: An IRB-approved retrospective review of our database from 1 January 2012 to 1 April 2018 identified 35 overhead athletes with a Bennett lesion on MRI. A control group consisting of 35 overhead athletes without a Bennett lesion were matched for age, level of play (professional vs non-professional), and type of study (arthrogram vs non-arthrogram). Read More

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http://dx.doi.org/10.1007/s00256-019-03176-2DOI Listing
February 2019

Fibroma of the patellar tendon sheath-a rare case in a young boy.

Skeletal Radiol 2019 Feb 19. Epub 2019 Feb 19.

Grant Government Medical College & Sir J J Group of Government Hospitals, Mumbai, Maharashtra, India.

Fibroma of the tendon sheath is a rare benign fibrocollagenous soft tissue tumor, arising predominantly from the synovium of tendon sheath. Fibromas occur most commonly in relation to the tendons of the fingers, hand, and the wrist. Fibromas related to large joints are rather rare and though amongst the large joints, the knee is a common site. Read More

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http://dx.doi.org/10.1007/s00256-019-03178-0DOI Listing
February 2019

Percutaneous image-guided bone biopsy of osteomyelitis in the foot and pelvis has a low impact on guiding antibiotics management: a retrospective analysis of 60 bone biopsies.

Skeletal Radiol 2019 Feb 19. Epub 2019 Feb 19.

Department of Radiology and Medical Imaging, University of Virginia Health System, 1215 Lee Street, PO Box 800170, Charlottesville, VA, 22908, USA.

Objective: Image-guided percutaneous bone biopsy may be requested by clinicians to guide antibiotics management decisions in patients with extremity osteomyelitis. Much of the clinical literature describes a high rate of bone biopsy culture positivity in patients with osteomyelitis, but anecdotally biopsy is felt to be fairly low yield in many musculoskeletal radiology practices. The objective of the study is to determine the culture positivity rate and clinical utility of bone biopsy in guiding the management of patients with osteomyelitis. Read More

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http://dx.doi.org/10.1007/s00256-019-3152-4DOI Listing
February 2019

Tenosynovial fluid as an indication of early posterior tibial tendon dysfunction in patients with normal tendon appearance.

Skeletal Radiol 2019 Feb 19. Epub 2019 Feb 19.

Emory University Orthopaedic and Spine Center, 59 Executive Park S, Suite 2000, Atlanta, GA, 30329, USA.

Objective: Our primary aim was to quantify the posterior tibial tendon (PTT) sheath fluid volume in individuals with the clinical diagnosis of stage 1 posterior tibial tendon dysfunction (PTTD) and no MRI-detectable intra-substance tendon pathology and compare them with patients with other causes of medial ankle pain, also without MRI-detectable intra-substance PTT pathology and with normal controls. We also wanted to determine if there is a fluid measurement that correlates with the clinical diagnosis of PTTD.

Materials And Methods: A total of 326 individuals with medial ankle pain and no intra-substance PTT pathology were studied. Read More

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http://dx.doi.org/10.1007/s00256-018-3142-yDOI Listing
February 2019

The peroneus longus muscle and tendon: a review of its anatomy and pathology.

Skeletal Radiol 2019 Feb 15. Epub 2019 Feb 15.

Department of Radiology, University of California, San Diego Medical Center, 408 Dickinson Street, San Diego, 92103, CA, USA.

This article will review the anatomy and common pathologies affecting the peroneus longus muscle and tendon. The anatomy of the peroneus longus is complex and its long course can result in symptomatology referable to the lower leg, ankle, hindfoot, and plantar foot. Proximally, the peroneus longus muscle lies within the lateral compartment of the lower leg with its distal myotendinous junction arising just above the level of the ankle. Read More

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http://dx.doi.org/10.1007/s00256-019-3168-9DOI Listing
February 2019
1 Read

Hourglass-like constriction neuropathy of the suprascapular nerve detected by high-resolution magnetic resonance neurography: report of three patients.

Skeletal Radiol 2019 Feb 12. Epub 2019 Feb 12.

Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul, 06351, South Korea.

Hourglass-like constriction neuropathy is a neurological condition caused by non-traumatic, non-compressive fascicular constrictions of one or more individual peripheral nerves. Based on clinical manifestations, it is very difficult to differentiate hourglass-like constriction neuropathy from idiopathic neuralgic amyotrophy. Focal hourglass-like constriction neuropathy may be erroneously diagnosed as idiopathic neuralgic amyotrophy. Read More

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http://dx.doi.org/10.1007/s00256-019-03174-4DOI Listing
February 2019
4 Reads

Torque application helps to diagnose incomplete syndesmotic injuries using weight-bearing computed tomography images.

Skeletal Radiol 2019 Feb 11. Epub 2019 Feb 11.

Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT, 84108, USA.

Objective: Accurate identification of distal tibio-fibular syndesmotic injuries is essential to limit potential deleterious post-traumatic effects. To date, conventional radiographs, computed tomography (CT), and magnetic resonance imaging (MRI) have shown limited utilization. This cadaver study evaluates the utility of weight-bearing CT scans on the assessment of incomplete and more complete syndesmotic injuries. Read More

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http://dx.doi.org/10.1007/s00256-019-3155-1DOI Listing
February 2019
5 Reads

Central osteophytes develop in cartilage with abnormal structure and composition: data from the Osteoarthritis Initiative cohort.

Skeletal Radiol 2019 Feb 9. Epub 2019 Feb 9.

Musculoskeletal and Quantitative Imaging Research Group, Department of Radiology & Biomedical Imaging, University of California, San Francisco, 185 Berry Street, Suite 350, San Francisco, CA, 94107, USA.

Objective: To investigate the natural history of central osteophytes (COs) by analyzing the structure and matrix composition of CO-associated cartilage using 3-T MRI at and 1-3 years before the onset of COs.

Materials And Methods: Baseline, 4- and 6-year knee MRIs of 400 participants in the Osteoarthritis Initiative were screened for the appearance of new COs. Twenty-eight subjects developed 31 COs. Read More

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http://dx.doi.org/10.1007/s00256-019-3166-yDOI Listing
February 2019
5 Reads

Fracture of the polyethylene tibial post in the posterior-stabilized total knee prosthesis: arthrographic and CT arthrographic diagnosis.

Skeletal Radiol 2019 Feb 7. Epub 2019 Feb 7.

Department of Medical Imaging, Chi Mei Medical Center, Yongkang, No. 901, Zhonghua Rd Yongkang District, Tainan City, 71004, Taiwan.

Fracture of the polyethylene tibial post in the posterior-stabilized total knee prosthesis is often delayed in diagnosis due to its nonspecific symptoms and the radiolucent characteristic of polyethylene on conventional radiography. Therefore, the diagnosis is always established by arthroscopy. Notwithstanding recent advances in imaging modalities, we are presently aware of only two related case reports on MRI and even no reports about arthrographic or CT-arthrographic diagnosis of fractured tibial post. Read More

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http://link.springer.com/10.1007/s00256-019-03173-5
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http://dx.doi.org/10.1007/s00256-019-03173-5DOI Listing
February 2019
6 Reads

Anatomical variations related to pathological conditions of the peroneal tendon: evaluation of ankle MRI with a 3D SPACE sequence in symptomatic patients.

Skeletal Radiol 2019 Feb 6. Epub 2019 Feb 6.

Department of Radiology, Gazi University Faculty of Medicine, Ankara, Turkey.

Objective: To evaluate anatomical variations in the lateral ankle and their relationships with pathological conditions of the peroneal tendon on magnetic resonance imaging (MRI) in symptomatic patients.

Materials And Methods: Sixty-nine ankles MRIs of 60 adult patients with symptomatic ankles were included. The presence and sizes of peroneal tubercle and retrotrochlear eminence (RTE), the prevalence of peroneus quartus (PQ), os peroneum, and boomerang-shaped peroneus brevis (PB) tendon, the shape of the retromalleolar fibular groove (RMFG), and the location of the PB muscle-tendon junction were evaluated. Read More

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http://dx.doi.org/10.1007/s00256-019-3151-5DOI Listing
February 2019

Optimizing radiation dose parameters in MDCT arthrography of the shoulder: illustration of basic concepts in a cadaveric study.

Skeletal Radiol 2019 Feb 6. Epub 2019 Feb 6.

Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Switzerland.

Objective: To determine in a cadaveric study the lowest achievable radiation dose and optimal tube potential generating diagnostic image quality in multidetector computed tomography (MDCT) arthrography of the shoulder.

Materials And Methods: Six shoulders from three human cadavers were scanned using a 256-MDCT system after intra-articular injection of diluted iodinated contrast material. Using six decreasing radiation dose levels (CTDI: 20, 15, 10, 8, 6, and 4 mGy) and for each dose level, four decreasing tube potentials (140, 120, 100, and 80 kVp), image noise and contrast-to-noise ratio (CNR) were measured. Read More

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http://dx.doi.org/10.1007/s00256-019-3150-6DOI Listing
February 2019

Perspective from a pediatric orthopedic deformity surgeon.

Authors:
Brian E Grottkau

Skeletal Radiol 2019 May 6;48(5):697. Epub 2019 Feb 6.

Department of Orthopaedic Surgery, MassGeneral Hospital for Children, Yawkey 3400, 55 Fruit Street, Boston, MA, 02114, USA.

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http://dx.doi.org/10.1007/s00256-019-3153-3DOI Listing

Chondrosarcoma arising within synovial chondromatosis of the lumbar spine.

Skeletal Radiol 2019 Feb 5. Epub 2019 Feb 5.

Department of Radiology and Department of Orthopedics, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.

Synovial chondromatosis is an uncommon benign neoplasm that usually affects large appendicular joints and only rarely the spine. There are only a few small series and case reports documenting malignant transformation of synovial chondromatosis into secondary chondrosarcoma, typically within the hip in the setting of recalcitrant disease and multiple recurrences. Chondrosarcoma arising in synovial chondromatosis of the spine is exceedingly rare, with only one previously published case report involving the craniocervical junction. Read More

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http://dx.doi.org/10.1007/s00256-019-03170-8DOI Listing
February 2019

Quantitative magnetic resonance imaging in patellar tendon-lateral femoral condyle friction syndrome: relationship with subtle patellofemoral instability.

Skeletal Radiol 2019 Feb 4. Epub 2019 Feb 4.

Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Chongqing, 400016, Yuzhong District, China.

Objective: To investigate the correlation of patellar tendon-lateral femoral condyle friction syndrome (PTLFCFS) with subtle patellofemoral instability to explore its pathogenesis.

Materials And Methods: One hundred knees of 80 patients with PTLFCFS were analyzed retrospectively by retrieving magnetic resonance imaging (MRI) data over a 3-year period from our database. Seven quantitative parameters for evaluating patellofemoral stability were measured on MR images, including the Insall-Salvati ratio, tibial tuberosity-trochlear groove (TT-TG) distance, trochlear groove depth, medial trochlear/lateral trochlear length (MT/LT) ratio, medial trochlear/lateral trochlear height (MH/LH) ratio, lateral patellofemoral angle (LPA), and lateral trochlear inclination (LTI) angle. Read More

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http://dx.doi.org/10.1007/s00256-019-3163-1DOI Listing
February 2019
3 Reads

Ulnar hemimelia: a report of four cases.

Skeletal Radiol 2019 Feb 2. Epub 2019 Feb 2.

Department of Radiology, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey.

Ulnar hemimelia is a very rare skeletal abnormality characterized by the total or partial absence of the ulna. It is reported to occur in approximately 1 per 150,000 live births. Some shortening of the forearm, radial bowing, and tendency of the hand to drift to the ulnar side of the wrist usually accompany ulnar hemimelia. Read More

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http://dx.doi.org/10.1007/s00256-019-3167-xDOI Listing
February 2019
7 Reads