4,897 results match your criteria Stress Fracture Imaging


Stress Distributions and Micromovement of Fragment Bone of Pilon Fracture Treated With External Fixator: A Finite Element Analysis.

J Foot Ankle Surg 2020 Jul - Aug;59(4):664-672

Professor, Sports Innovation and Technology Centre (SITC), Institute of Human Centered Engineering (iHumEn), Universiti Teknologi Malaysia, Johor, Malaysia.

Osteoporosis and osteoarthritis are common pathological problems of the human bone tissue. There are some cases of pilon fractures associated with these 2 pathological conditions. In terms of treatment, for a normal and healthy bone with pilon fracture, the use of the Delta external fixator is a favorable option because it can allow early mobilization for patients and provide stability for the healing process. Read More

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http://dx.doi.org/10.1053/j.jfas.2019.09.006DOI Listing
November 2018

Diagnostic accuracy of color-coded virtual noncalcium dual-energy CT for the assessment of bone marrow edema in sacral insufficiency fracture in comparison to MRI.

Eur J Radiol 2020 May 25;129:109046. Epub 2020 May 25.

Division of Experimental Imaging, Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt Am Main, Germany. Electronic address:

Purpose: To evaluate the diagnostic accuracy of color-coded dual-energy CT virtual noncalcium (VNCa) reconstructions for the assessment of traumatic bone marrow edema in sacral insufficiency fracture (SIF).

Method: Data from 52 consecutive patients (28 women, 24 men; mean age, 61 ± 13 years; range, 49-94 years) who had undergone third-generation dual-source CT and 3-Tesla (T) MRI due to low back pain without adequate trauma were retrospectively evaluated. Five radiologists, blinded to MRI and clinical information, independently analyzed conventional grayscale dual-energy CT series for sacral fractures according to the Denis classification. Read More

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http://dx.doi.org/10.1016/j.ejrad.2020.109046DOI Listing

Osteoporosis and Stress Urinary Incontinence in Women: A National Health Insurance Database Study.

Int J Environ Res Public Health 2020 Jun 21;17(12). Epub 2020 Jun 21.

Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.

We aimed to determine the influence of osteoporosis and stress urinary incontinence in women. We hypothesized that women with osteoporosis had an increased risk of stress urinary incontinence. This retrospective study used data from the Taiwan Longitudinal Health Insurance database from 2005-2009. Read More

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http://dx.doi.org/10.3390/ijerph17124449DOI Listing

Internal Fixation of Pauwels Type-3 Undisplaced-incomplete Insufficiency Femoral Neck Fractures with Cephalomedullary Nails.

Hip Pelvis 2020 Jun 15;32(2):105-111. Epub 2020 Jun 15.

Department of Orthopedic Surgery, The Catholic University of Korea, St. Vincent Hospital, Suwon, Korea.

Femoral neck stress fractures are rare and when treating are difficult to achieve favorable outcomes. This study characterizes outcomes associated with the use of cephalomedullary nails for fixation of Pauwels type-3 vertical femoral neck undisplaced-incomplete insufficiency fractures. Four consecutive patients with a Pauwels type-3 vertical femoral neck tensile insufficiency fracture from 2016 to 2018 were reviewed. Read More

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http://dx.doi.org/10.5371/hp.2020.32.2.105DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7295618PMC

The Role of Polypropylene Microfibers in Thermal Properties and Post-Heating Behavior of Cementitious Composites.

Materials (Basel) 2020 Jun 12;13(12). Epub 2020 Jun 12.

Center for Advanced Materials (CAM), Qatar University, P.O. Box 2713, Doha 00000, Qatar.

This paper experimentally studied the effect of polypropylene (PP) microfibers on thermal and post-heating mechanical behaviors of cementitious composites. Cement mortars with small dosage of polypropylene fibers were prepared, heated at various temperatures (150 °C, 200 °C, 450 °C, and 600 °C), and then tested. The investigated parameters include residual compressive and flexural strengths, elastic modulus, fracture energy, stress intensity factors, failure modes, microstructure (scanning electron microscopy (SEM) imaging), thermal conductivity, heat flow (differential scanning calorimetry (DSC) test), mass loss (thermogravimetric analysis (TGA) test), and chemical composition (XRD analysis). Read More

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http://dx.doi.org/10.3390/ma13122676DOI Listing

[Bone remodeling after total hip arthroplasty with anatomic medullary locking prosthesis and its long-term effectiveness].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2020 Jun;34(6):689-695

Department of Orthopedics, First Affiliated Hospital, Soochow University, Suzhou Jiangsu, 215006, P.R.China.

Objective: To investigate the femoral bone remodeling and long-term effectiveness of total hip arthroplasty (THA) with anatomic medullary locking (AML) prosthesis.

Methods: The clinical data of 24 cases (26 hips) who were treated with THA with AML prosthesis between November 1997 and January 2003 were retrospectively analyzed. There were 12 males and 12 females with an age of 32-69 years (mean, 53. Read More

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http://dx.doi.org/10.7507/1002-1892.201910033DOI Listing

Progression of Hamate Hook Stress Reactions in Elite Baseball Players.

Orthop J Sports Med 2020 May 27;8(5):2325967120919389. Epub 2020 May 27.

Houston Methodist Orthopedics and Sports Medicine, Houston, Texas, USA.

Background: Hamate hook fractures can occur as a result of repetitive contact with the knob of the bat used in the sport of baseball. Hamate hook excision has resulted in excellent outcomes and return to sport (RTS) in elite baseball players. The ideal treatment for hamate stress response before the development of a fracture line is unknown. Read More

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http://dx.doi.org/10.1177/2325967120919389DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7268571PMC

Development of a preliminary multivariable diagnostic prediction model for identifying active spondylolysis in young athletes with low back pain.

Phys Ther Sport 2020 May 30;45:1-6. Epub 2020 May 30.

Division of Sports Medicine, Nationwide Children's Hospital, Columbus, OH, United States.

Aims: The primary aim of this study was to develop a diagnostic cluster of common clinical findings that would assist in ruling out an active spondylolysis in adolescent athletes with low back pain (LBP).

Design: Retrospective case-series.

Setting: Hospital-based sports medicine clinic. Read More

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http://dx.doi.org/10.1016/j.ptsp.2020.05.009DOI Listing

Barista's fracture: a new occupational hazard.

JRSM Open 2020 May 6;11(5):2054270420918493. Epub 2020 May 6.

The Royal London Hospital, Barts Health NHS Trust & Queen Mary University of London, London E1 2AD, UK.

Stress fracture of the clavicle is a rare injury usually occurring in high-level athletes. It is typically a result of repetitive sporting activity or unusual strain. We present the first case of an occupational clavicle stress fracture in a young female barista. Read More

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http://dx.doi.org/10.1177/2054270420918493DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7236564PMC

Weightbearing Radiography and MRI Findings in Ankle Fractures.

Foot Ankle Spec 2020 Jun 2:1938640020921571. Epub 2020 Jun 2.

Department of Orthopaedic Surgery, Inselspital, Bern University Hospital, University of Bern, Switzerland (HCB, HB, JC-B, FK, MCA).

Static weightbearing radiography can be used to assess stability in ankle fractures by measuring lateral talar shift (medial clear space; MCS). However, the correlation of a stable ankle joint under weightbearing load and the structural integrity of the deltoid ligament has not been shown. In this study, we assessed deltoid ligament integrity on magnetic resonance imaging (MRI) and correlated that with weightbearing and gravity stress test radiography. Read More

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http://dx.doi.org/10.1177/1938640020921571DOI Listing

Sacral stress fracture in an amateur golf player: a case report and literature review.

Phys Sportsmed 2020 Jun 1:1-5. Epub 2020 Jun 1.

Department of Family Medicine, Faculty of Medicine, Akdeniz University Hospital, Akdeniz University , Antalya, Turkey.

Sacral stress fractures are rare injuries among professional and amateur athletes and are considered to be an uncommon source of low back pain. These type of fractures are mainly seen in competitive, high-impact sports, most commonly in long-distance runners. Sacral stress fractures are usually overlooked in young patients presenting with low back pain without any trauma history. Read More

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http://dx.doi.org/10.1080/00913847.2020.1773746DOI Listing

Imaging of shoulder instability.

Skeletal Radiol 2020 May 23. Epub 2020 May 23.

Shoulder Unit, Humanitas Researche Hospital, Via Manzoni 56 Rozzano, Milan, Italy.

The shoulder enjoys the widest range of motion of all the joints in the human body, therefore requires a delicate balance between stability and motility. The glenohumeral joint is inclined to fall into two main instability categories: macro and micro. Macroinstability can be traumatic or atraumatic, with anterior or posterior dislocation of the humeral head. Read More

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http://dx.doi.org/10.1007/s00256-020-03459-zDOI Listing

[Radiologic diagnosis of pathologic fractures].

Radiologe 2020 Jun;60(6):498-505

Diagnostische und Interventionelle Radiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 110, 69120, Heidelberg, Deutschland.

Background: Pathologic fractures are fractures that occur without an adequate traumatic event due to focal benign or malignant skeletal lesions. The most common causes of pathologic fractures are cystic bone lesions, plasmocytoma or multiple myeloma, and the development of osseous metastases, which is increasing due to an aging general population and advances in cancer treatment. The differentiation of pathologic fractures from stress fractures, especially osteoporotic insufficiency fractures is crucial for correct treatment planning. Read More

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http://dx.doi.org/10.1007/s00117-020-00693-3DOI Listing

Reconstruction of complex radial head fractures using fine-threaded K-wires : clinical outcome and remaining instability.

Acta Orthop Belg 2019 Dec;85(4):437-447

Radial head replacement or ORIF are established treatment options for Mason type-III and type-IV fractures. The aim of this study was to provide results for reconstruction of these complex fractures using fine-threaded K-wires. We present results after reconstruction of 15 Mason type-III and 8 Mason type-IV fractures. Read More

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December 2019

Experimental investigation on rockburst behavior of the rock-coal-bolt specimen under different stress conditions.

Sci Rep 2020 May 5;10(1):7556. Epub 2020 May 5.

Department of Civil Engineering, Monash University, Clayton, Victoria, 3800, Australia.

Coal and rock burst are one of the main dynamic disasters that affect coal mine production. In this paper, the burst structural model of the rock-coal-bolt (RCB) system and the burst tendency criterion are established on the background of deep thin coal seam mining. Uniaxial and triaxial mechanical tests under different stress states are carried out on RCB specimens with different angles. Read More

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http://dx.doi.org/10.1038/s41598-020-64513-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7200740PMC

[Femoral neck stress fractures and femoroacetabular impingement : A retrospective case study and literature review].

Orthopade 2020 Apr 28. Epub 2020 Apr 28.

UniversitätsCentrum für Orthopädie & Unfallchirurgie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland.

Background: Femoroacetabular impingement (FAI) can lead to morphologic damage of both the acetabulum and the femoral neck. Recent reports have found an association between impingement deformities and the development of femoral neck stress fractures. The aim of this study was to report a series of patients with these findings and to update the current evidence on the topic. Read More

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http://dx.doi.org/10.1007/s00132-020-03916-6DOI Listing

J-bone graft with double locking plate: a symphony of mechanics and biology for atrophic distal femoral non-union with bone defect.

J Orthop Surg Res 2020 Apr 15;15(1):144. Epub 2020 Apr 15.

Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.

Objective: Atrophic distal femur non-union with bone defect (ADFNBD) has been a worldwide challenge to treat due to the associated biological and mechanical problems. The purpose of this study was to introduce a new solution involving the use of a J-shaped iliac crest bone graft (J-bone) combined with double-plate (DP) in the treatment of femoral non-union.

Methods: Clinically, 18 patients with ADFNBD were included in this retrospective study and were treated with a combination of J-bone graft and DP. Read More

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http://dx.doi.org/10.1186/s13018-020-01636-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7161247PMC
April 2020
1.577 Impact Factor

Three dimensional finite element analysis used to study the influence of the stress and strain of the operative and adjacent segments through different foraminnoplasty technique in the PELD: Study protocol clinical trial (SPIRIT Compliant).

Medicine (Baltimore) 2020 Apr;99(15):e19670

Southern Medical University, Guangzhou, Guangdong Province, P.R. China.

Introduction: Percutaneous endoscopic lumbar disectomy (PELD) is one of the most popular minimally invasive techniques of spinal surgery in recent years. At present, there are 2 main surgical approaches in PELD: foraminal approach and interlaminar approach. What's more, foraminoplasty is a necessary step for both approaches. Read More

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http://dx.doi.org/10.1097/MD.0000000000019670DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7220094PMC

Diagnosis of Klippel-Trenaunay syndrome and extensive heterotopic ossification in a patient with a femoral fracture: a case report and literature review.

BMC Musculoskelet Disord 2020 Apr 11;21(1):223. Epub 2020 Apr 11.

Affiliated Anhui Provincial Hospital of Anhui Medical University, Hefei, 230001, Anhui, China.

Background: Klippel-Trenaunay syndrome (KTS) is a rare complex vessel malformation syndrome characterized by venous varicosities, capillary malformations, and limb hypertrophy. However, extensive heterotopic ossification (HO) secondary to this syndrome is extremely rare.

Case Presentation: We report the case of a patient with previously undiagnosed KTS and extensive HO who presented with a femoral fracture secondary to a motor vehicle accident. Read More

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http://dx.doi.org/10.1186/s12891-020-03224-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7149888PMC
April 2020
1.898 Impact Factor

Design and Analysis of Customized Fixation Plate for Femoral Shaft.

Indian J Orthop 2020 Apr 24;54(2):148-155. Epub 2020 Jan 24.

Mechanical Engineering Department, Jaypee University of Engineering and Technology, AB Road, Raghogarh, Guna, India.

Background: In the recent years, several techniques have been used to treat femur diaphyseal fracture. Among all the traditional fixation techniques, unstable fixation remains the biggest challenge for orthopedists. Researchers have recommended new approaches to deal with diaphyseal femur fracture. Read More

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http://dx.doi.org/10.1007/s43465-019-00025-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7096597PMC

An investigation of elastic waves producing stone fracture in burst wave lithotripsy.

J Acoust Soc Am 2020 Mar;147(3):1607

Department of Acoustics, Physics Faculty, Lomonosov Moscow State University, Leninskie Gory, Moscow 119992, Russia.

Burst wave lithotripsy is a method to noninvasively fragment urinary stones by short pulses of focused ultrasound. In this study, physical mechanisms of stone fracture during burst wave lithotripsy were investigated. Photoelasticity imaging was used to visualize elastic wave propagation in model stones and compare results to numerical calculations. Read More

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http://dx.doi.org/10.1121/10.0000847DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7069764PMC

N-acetylcysteine (NAC), an anti-oxidant, does not improve bone mechanical properties in a rat model of progressive chronic kidney disease-mineral bone disorder.

PLoS One 2020 23;15(3):e0230379. Epub 2020 Mar 23.

Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, United States of America.

Individuals with chronic kidney disease have elevated levels of oxidative stress and are at a significantly higher risk of skeletal fracture. Advanced glycation end products (AGEs), which accumulate in bone and compromise mechanical properties, are known to be driven in part by oxidative stress. The goal of this study was to study effects of N-acetylcysteine (NAC) on reducing oxidative stress and improving various bone parameters, most specifically mechanical properties, in an animal model of progressive CKD. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0230379PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7089527PMC

Medial clear space volume on cone beam CT scan offers objective measurement of congruency in supination external rotation ankle fractures in a cadaver model.

Quant Imaging Med Surg 2020 Feb;10(2):380-388

Department of Orthopaedics, The Jacobs School of Medicine and Biomedical Sciences, The State University of New York, University at Buffalo, Buffalo, NY, USA.

Background: We performed a volume analysis of gravity stress (GS) and simulated weight bearing (WB) CBCT scans of a cadaveric supination external rotation (SER) ankle fracture model.

Methods: An AO supination external rotation 44B3.1 ankle fracture was simulated in 6 human cadavers, each serving as its own control. Read More

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http://dx.doi.org/10.21037/qims.2019.12.08DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7063283PMC
February 2020

Bone marrow edema around the hip in non-traumatic pain: dual-energy CT vs MRI.

Eur Radiol 2020 Jul 12;30(7):4098-4106. Epub 2020 Mar 12.

Department of Radiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Don A. Sempreboni 10, 37024, Negrar, Italy.

Objectives: To evaluate the diagnostic accuracy of dual-energy computed tomography (DECT) in identifying bone marrow edema (BME) around the hip joint in non-traumatic patients.

Methods: This prospective IRB-approved study was conducted between January 2019 and October 2019 and included 59 consecutive patients (18 males, 41 females; mean age 61.5 years, range 32-82) who were assessed by DECT and magnetic resonance imaging (MRI) within a 5-day period. Read More

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http://dx.doi.org/10.1007/s00330-020-06775-zDOI Listing

Basic morphometry, microcomputed tomography and mechanical evaluation of the tibiotarsal bone of a dual-purpose and a broiler chicken line.

PLoS One 2020 11;15(3):e0230070. Epub 2020 Mar 11.

Department of Veterinary Medicine, Institute of Veterinary Anatomy, Freie Universität Berlin, Berlin, Germany.

Continuous loading of the skeleton by the body's weight is an important factor in establishing and maintaining bone morphology, architecture and strength. However, in fast-growing chickens the appendicular skeleton growth is suboptimal making these chickens predisposed to skeletal mineralization disorders and fractures. This study compared the macro- and microstructure as well as the mechanical properties of the tibiotarsus of a novel dual-purpose, Lohmann Dual (LD) and a highly developed broiler, Ross (Ross 308) chicken line. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0230070PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7065781PMC

Ipsilateral Pedicle Stress Fracture After Endoscopic Foraminal Decompression for Patient with Isthmic Spondylolisthesis.

World Neurosurg 2020 06 4;138:73-76. Epub 2020 Mar 4.

Department of Orthopedic Surgery, Kangwon National University Hospital, Chuncheon-si, Korea. Electronic address:

Background: Minimally invasive endoscopic spine surgery is useful for the treatment of various spinal conditions. Although surgery-related complications such as dural injury, exiting nerve root injury, incomplete decompression, and hematoma have been reported, there are few reports of late complications after endoscopic surgery.

Case Description: A 51-year-old man complained of radiating pain to the right leg. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.02.139DOI Listing
June 2020
2.417 Impact Factor

Nuclear Medicine for the Orthopedic Foot and Ankle Surgeon.

Foot Ankle Int 2020 May 6;41(5):612-623. Epub 2020 Mar 6.

Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA.

Nuclear medicine has been widely applied as a diagnostic tool for orthopedic foot and ankle pathology. Although its indications have diminished with improvements in and the availability of magnetic resonance imaging, nuclear medicine still has a significant and valuable role. The present article offers a comprehensive and current review of the most common nuclear imaging modalities for the orthopedic foot and ankle surgeon. Read More

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http://dx.doi.org/10.1177/1071100720910422DOI Listing

An intracranial mass causing tumor-induced osteomalacia (TIO): Rapid and complete resolution of severe osteoporosis after surgical resection.

Radiol Case Rep 2020 May 25;15(5):492-497. Epub 2020 Feb 25.

Vanderbilt University Medical Center, Program for Metabolic Bone Disorders at Vanderbilt, Endocrinology and Diabetes, 8210 Medical Center East, 1215 21st Avenue South, Nashville, TN 37232, USA.

Tumor-induced osteomalacia (TIO) is a rare disease in which patients suffer from fractures and progressive disabling bone pain and muscle weakness. TIO is caused by the hypersecretion of Fibroblast Growth Factor 23 (FGF23) from rare neoplasms of mesenchymal origin. This case report describes a 29-year-old male with 2 years of low back/hip pain, gait changes, proximal muscle weakness, and multiple stress fractures. Read More

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http://dx.doi.org/10.1016/j.radcr.2020.01.039DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044500PMC

[Lower leg, ankle and foot].

Radiologe 2020 Jun;60(6):532-540

Institut für Diagnostische und Interventionelle Radiologie, Uniklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.

Clinical/methodical Issue: Bipedal locomotion means high mechanical stress on the lower extremities and susceptibility to fractures. On the one hand, these can be the result of a one-time traumatic stress in the context of high speed traumas or falls, but can also result from repetitive microtraumas with subsequent stress fractures.

Standard Radiological Methods: For all fracture entities and localizations, X‑ray diagnostics is the basic modality. Read More

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http://dx.doi.org/10.1007/s00117-020-00664-8DOI Listing

Determining the Fracture Process Zone Length and Mode I Stress Intensity Factor in Concrete Structures via Mechanoluminescent Technology.

Sensors (Basel) 2020 Feb 25;20(5). Epub 2020 Feb 25.

School of Nano & Advanced Materials Engineering, Kyungpook National University, Kyeongbuk 37224, Korea.

The mechanoluminescent (ML) technology that is being developed as a new and substitutive technology for structural health monitoring systems (SHMS) comprises stress/strain sensing micro-/nanoparticles embedded in a suitable binder, digital imaging system, and digital image processing techniques. The potential of ML technology to reveal the fracture process zone (FPZ) that is commonly found in structural materials like concrete and to calculate the stress intensity factor (SIF) of concrete, which are crucial for SHMS, has never been done before. Therefore, the potential of ML technology to measure the length of the FPZ and to calculate the SIF has been demonstrated in this work by considering a single-edge notched bend (SENB) test of the concrete structures. Read More

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http://dx.doi.org/10.3390/s20051257DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7085635PMC
February 2020

Bone Stress Injuries in Runners: a Review for Raising Interest in Stress Fractures in Korea.

J Korean Med Sci 2020 Mar 2;35(8):e38. Epub 2020 Mar 2.

Department of Rehabilitation Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.

A bone stress injury (BSI) means that the bones cannot tolerate repeated mechanical loads, resulting in structural fatigue and local bone pain. A delay in BSI diagnosis can lead to more serious injuries, such as stress fractures that require longer treatment periods. Therefore, early detection of BSI is an essential part of management. Read More

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http://dx.doi.org/10.3346/jkms.2020.35.e38DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7049623PMC

[Special aspects of stress fractures].

Radiologe 2020 Jun;60(6):506-513

Institut für Diagnostische und Interventionelle Radiologie, Kinder- und Neuroradiologie, Universitätsmedizin Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Deutschland.

Background: Stress fractures are very common in clinical practice. They can be classified into fatigue fractures that affect healthy bone and insufficiency fractures in which the bone is already damaged or weakened.

Imaging Modalities: Conventional x‑ray images are the standard method in case of a suspected stress fracture. Read More

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http://dx.doi.org/10.1007/s00117-020-00657-7DOI Listing

Chronic Lower Leg Pain in Athletes: Overview of Presentation and Management.

HSS J 2020 Feb 28;16(1):86-100. Epub 2019 Mar 28.

1UHealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, FL USA.

Background: Athletes with chronic lower leg pain present a diagnostic challenge for clinicians due to the differential diagnoses that must be considered.

Purpose/questions: We aimed to review the literature for studies on the diagnosis and management of chronic lower leg pain in athletes.

Methods: A literature review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). Read More

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http://dx.doi.org/10.1007/s11420-019-09669-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6973789PMC
February 2020

Approaching Foot and Ankle Injuries in the Ambulatory Setting.

Prim Care 2020 Mar 17;47(1):133-145. Epub 2019 Oct 17.

University of South Carolina School of Medicine-Greenville, Greenville, SC, USA; Department of Family Medicine, Prisma Health, 877 West Faris Road, Greenville, SC 29605, USA.

Foot and ankle injuries account for a significant volume of primary care office visits each year. Given the incidence of injury and concern for long-term sequelae, it is imperative that primary care physicians familiarize themselves with commonly encountered foot and ankle injuries. Coupling a sound understanding of key anatomic structures with an appropriately gathered history can help to quickly narrow the differential diagnosis in this clinical presentation. Read More

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http://dx.doi.org/10.1016/j.pop.2019.10.007DOI Listing

The Wide-Ranging Spectrum of Cough-Induced Complications and Patient Harm.

Authors:
Ami Schattner

Am J Med 2020 05 31;133(5):544-551. Epub 2020 Jan 31.

The Faculty of Medicine, Hebrew University and Hadassah Medical School, Jerusalem, Israel. Electronic address:

Cough is one of the most common complaints encountered in every setting; however, complications associated with coughing have received relatively little attention. An exhaustive systematic review of the English literature revealed an exceedingly large and varied spectrum of cough-induced complications affecting many systems, including upper airways, chest wall and thorax, abdominal wall, heart and aorta, central nervous system, eye, gastrointestinal tract, urogenital system, and emotional and psychological harm. Prospective studies and prevalence data are conspicuously missing. Read More

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http://dx.doi.org/10.1016/j.amjmed.2019.12.044DOI Listing

Consensus recommendations on the classification, definition and diagnostic criteria of hip-related pain in young and middle-aged active adults from the International Hip-related Pain Research Network, Zurich 2018.

Br J Sports Med 2020 Jun 20;54(11):631-641. Epub 2020 Jan 20.

Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.

There is no agreement on how to classify, define or diagnose hip-related pain-a common cause of hip and groin pain in young and middle-aged active adults. This complicates the work of clinicians and researchers. The International Hip-related Pain Research Network consensus group met in November 2018 in Zurich aiming to make recommendations on how to classify, define and diagnose hip disease in young and middle-aged active adults with hip-related pain as the main symptom. Read More

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http://dx.doi.org/10.1136/bjsports-2019-101453DOI Listing

Rib stress injuries in the 2012-2016 (Rio) Olympiad: a cohort study of 151 Australian Rowing Team athletes for 88 773 athlete days.

Br J Sports Med 2020 Jan 20. Epub 2020 Jan 20.

Department of Physiotherapy, Australian Institute of Sport, Canberra, Australian Capital Territory, Australia.

Aim: To describe the demographics, frequency, location, imaging modality and clinician-identified factors of rib stress injury in a cohort of elite rowers over the Rio Olympiad (2012-2016).

Methods: Analysis of prospectively recorded medical records for the Australian Rowing Team in 2013-2015 and the combined Australian Rowing Team and Olympic Shadow Squad in 2016, examining all rib stress injuries.

Results: 19 rib stress injuries (12 reactions and 7 fractures) were identified among a cohort of 151 athletes and included 12 female and 7 male cases, 11 open weight, 8 lightweight, 12 scull and 7 sweep cases. Read More

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http://dx.doi.org/10.1136/bjsports-2019-101584DOI Listing
January 2020

Symptomatic pseudoarthrosis secondary to a stress fracture of the acromion.

Acta Biomed 2019 12 23;90(4):603-605. Epub 2019 Dec 23.

Department of Orthopaedics and Orthopaedic Oncology, University of Padova, Padova (Italy).

Fractures of the acromion are uncommon clinical entities, and stress fractures are even more rare, with few cases reported. Due to their rarity, stress fractures are often misdiagnosed. Here, we report a case of an elderly patient with an acromion stress fracture, which was overlooked, resulting in nonunion followed by the displacement of the distal portion of the acromion. Read More

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http://dx.doi.org/10.23750/abm.v90i4.7778DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7233764PMC
December 2019

A novel percutaneous crossed screws fixation in treatment of Day type II crescent fracture-dislocation: A finite element analysis.

J Orthop Translat 2020 Jan 5;20:37-46. Epub 2019 Sep 5.

Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, XueYuan West Road, Luheng District, Wenzhou, Zhejiang Province, 325000, PR China.

Objective: Day type II crescent fracture-dislocation is a subtype of pelvic lateral compression injury. At present, there is still a controversy on the operative approach and fixation technique. We have put forward closed reduction and percutaneous crossed screws fixation for treating type-II crescent fracture-dislocation. Read More

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http://dx.doi.org/10.1016/j.jot.2019.08.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6939110PMC
January 2020

Dynamics of spinal cord compression with different patterns of thoracolumbar burst fractures: Numerical simulations using finite element modelling.

Clin Biomech (Bristol, Avon) 2020 Feb 24;72:186-194. Epub 2019 Dec 24.

Department of Mechanical Engineering, École de Technologie Supérieure, 1100 Notre-Dame Street West, Montréal, Québec H3C 1K3, Canada; Research Center, Hôpital du Sacré-Cœur de Montréal, 5400 Gouin blvd, Montréal H4J 1C5, Québec, Canada; International Laboratory on Spine Imaging and Biomechanics (iLab-Spine), Canada. Electronic address:

Background: In thoracolumbar burst fractures, spinal cord primary injury involves a direct impact and energy transfer from bone fragments to the spinal cord. Unfortunately, imaging studies performed after the injury only depict the residual bone fragments position and pattern of spinal cord compression, with little insight on the dynamics involved during traumas. Knowledge of underlying mechanisms could be helpful in determining the severity of the primary injury, hence the extent of spinal cord damage and associated potential for recovery. Read More

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http://dx.doi.org/10.1016/j.clinbiomech.2019.12.023DOI Listing
February 2020

Non-invasive skin autofluorescence, blood and urine assays of the advanced glycation end product (AGE) pentosidine as an indirect indicator of AGE content in human bone.

BMC Musculoskelet Disord 2019 Dec 27;20(1):627. Epub 2019 Dec 27.

Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan.

Background: Bone mineral density (BMD) measurements are widely used to assess fracture risk. However, the finding that some fracture patients had high BMD together with the low contribution of drugs to osteoporosis suggests that bone strength factors other than BMD contribute to bone quality. We evaluated the amount of advanced glycation end products (AGEs) by non-invasive assays of serum and urine as well as by skin autofluorescence to measure the levels of a representative AGE, pentosidine, to investigate whether pentosidine can serve as an indirect indicator of AGEs formation in bone collagen. Read More

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http://dx.doi.org/10.1186/s12891-019-3011-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6933723PMC
December 2019

Proximal Tibial Stress Fractures: A Diagnostic Challenge.

Ann Acad Med Singapore 2019 Oct;48(10):338-340

Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore.

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October 2019

Cyclic fatigue resistance and metallurgic comparison of rotary endodontic file systems.

Gen Dent 2020 Jan-Feb;68(1):36-39

The aim of this study was to compare, in pairs, the cyclic fatigue resistance, scanning electron microscopic (SEM) appearance, and energy-dispersive X-ray (EDX) profiles of 6 rotary files: ProTaper Gold vs EdgeTaper Platinum; ProTaper Universal vs EdgeTaper; and Vortex Blue vs EdgeSequel Sapphire. Six types of rotary file were tested in 2 sizes of each type. A 3-point cyclic fatigue apparatus imparting a 60-degree angle of curvature and a 3-mm radius of curvature was used to evaluate 30 files of each type and size. Read More

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January 2020

[Stress fractures].

Rev Med Suisse 2019 Dec;15(675):2293-2297

Service d'orthopédie-traumatologie, Département de l'appareil locomoteur, CHUV, 1011 Lausanne.

A stress fracture is a bony overuse lesion resulting from an imbalance between the osseous regeneration and resorption in favor of the second one. There are two different types, the fatigue fracture that affects mainly the young and active and appears after an abrupt increase of the constraints, and the insufficiency fracture that affects mainly the elderly suffering from a diminished bone density and appears typically during physiological constraints. A thorough screening of the patient's history is mandatory in diagnostics, and MRI is currently the imagery of choice. Read More

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December 2019

Epiphyseal Stress Fractures of the Fingers in an Adolescent Climber: A Potential "Maslow's Hammer" in Terms of Clinical Reasoning.

Curr Sports Med Rep 2019 Dec;18(12):431-433

School of Clinical and Applied Sciences, Leeds Beckett University, Leeds, UNITED KINGDOM.

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http://dx.doi.org/10.1249/JSR.0000000000000658DOI Listing
December 2019

Successful Bony Healing For An Adult Patient With Isthmic Spondylolysis At Terminal Stage After Conservative Treatment: A Case Report.

J Pain Res 2019 5;12:3257-3261. Epub 2019 Dec 5.

Department of Orthopedic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.

Purpose: Spondylolysis, a defect or fracture of the pars interarticularis due to mechanical stress, is a common cause of lower back pain (LBP) in children and adolescents. Although conservative treatment has been shown to be most effective for young patients at early or progressive stage, few studies have reported the outcomes of conservative treatment for adult spondylolysis at terminal stage. We present the possibility of bony healing in the isthmic defect at terminal stage after conservative treatment. Read More

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http://dx.doi.org/10.2147/JPR.S211785DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901381PMC
December 2019

Finite element analysis of two cephalomedullary nails in treatment of elderly reverse obliquity intertrochanteric fractures: zimmer natural nail and proximal femoral nail antirotation-ΙΙ.

J Orthop Surg Res 2019 Dec 10;14(1):422. Epub 2019 Dec 10.

Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, 300052, People's Republic of China.

Background: More elderly patients are suffering from intertrochanteric fractures. However, the choice of internal fixation is still controversial, especially in the treatment of unstable intertrochanteric fracture; thus, previous implants continue to be improved, and new ones are being developed. The purpose of our study was to compare the biomechanical advantages between the zimmer natural nail (ZNN) and proximal femoral nail antirotation-II (PFNA-II) in the treatment of elderly reverse obliquity intertrochanteric fractures. Read More

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http://dx.doi.org/10.1186/s13018-019-1468-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6902592PMC
December 2019

Pelvic insufficiency fracture or bone metastasis after radiotherapy for cervical cancer? The added value of DWI for characterization.

Eur Radiol 2020 Apr 10;30(4):1885-1895. Epub 2019 Dec 10.

Department of Radiology, Guangdong Women and Children Hospital, Guangzhou, No. 521, Xingnan Rd, Guangzhou, China.

Objectives: We sought to determine the added value of diffusion-weighted magnetic resonance imaging (DWI) in the differentiation of pelvic insufficiency fracture (PIF) from bone metastasis after radiotherapy in cervical cancer patients.

Methods: In the present study, 42 cervical cancer patients after radiotherapy with 61 bone lesions (n = 40, PIFs; n = 21, bone metastasis) were included. Conventional MRI and DWI were performed in all patients. Read More

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http://dx.doi.org/10.1007/s00330-019-06520-1DOI Listing

Relating mechanical properties of vertebral trabecular bones to osteoporosis.

Comput Methods Biomech Biomed Engin 2020 Feb 9;23(2):54-68. Epub 2019 Dec 9.

Department of Materials Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil.

Osteoporosis is an osteometabolic disease, which promotes structural degradation of bone tissue and reduction of mineral density. We reported here a mechanical resistance assay from normal, osteopenic and osteoporotic trabecular vertebral bones of human cadavers. We performed a compressed test on ninety samples, evaluating Young's modulus and X-ray microtomography to measure bone volume fraction and trabecular thickness. Read More

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http://dx.doi.org/10.1080/10255842.2019.1699542DOI Listing
February 2020

Relevance of SPECT-CT in Complex Cases of Foot and Ankle Surgery: A Comparison With MRI.

Foot Ankle Spec 2019 Dec 6:1938640019890987. Epub 2019 Dec 6.

DIAKOVERE Annastift, Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH), Hannover Medical School, Hannover, Germany (LC, DY, SE, ML, CS-C, CP).

Background: Finding the right diagnoses in patients with complex foot and ankle disorders can be challenging. Single-photon emission computed tomography and computed tomography (SPECT-CT) has shown to be feasible in foot and ankle surgery. The aim of this study was to evaluate the reliability and accuracy of SPECT-CT and thereby its impact on final treatment decision compared with magnetic resonance imaging (MRI). Read More

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http://dx.doi.org/10.1177/1938640019890987DOI Listing
December 2019