13,224 results match your criteria Acetabulum Fracture Imaging


Accuracy and safety of percutaneous periacetabular screw insertion using screw view model of navigation in acetabular fracture: A case report.

Medicine (Baltimore) 2018 Dec;97(49):e13316

Department of Orthopaedics.

Rationale: The purpose of this study was to estimate the efficacy and safety of percutaneous periacetabular screw (PPS) insertion assisted by screw view model of navigation (SVMN) to treat fracture of acetabulum.

Patient Concerns: A 61-year-old male patient was injured in a motorcycle accident, which caused pain, swelling, deformity and limited mobility on his right hip.

Diagnoses: He was diagnosed with fracture of acetabulum. Read More

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December 2018

There Is No Significant Difference in Fretting and Corrosion at the Trunnion of Metal and Ceramic Heads.

Orthopedics 2018 Dec 11:1-5. Epub 2018 Dec 11.

No study has compared the prevalence of fretting and corrosion at the trunnion of cobalt-chrome (Co-Cr) and zirconia ceramic heads in the same patients. The authors sought to compare the prevalence of fretting and corrosion at the trunnion after total hip arthroplasty with a 32-mm Co-Cr or a 32-mm zirconia ceramic head-on-polyethylene bearing. Isolated revision of the ace-tabular components was performed in 78 patients (156 hips) for polyethylene wear and osteolysis of the acetabulum. Read More

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December 2018

The augment-and-modular-cage revision system for reconstruction of severe acetabular defects-two-year clinical and radiographic results.

Int Orthop 2018 Dec 11. Epub 2018 Dec 11.

Department of Orthopedics and Traumatology, University Hospital Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany.

Purpose: Acetabular revision of failed total hip arthroplasty (THA) is often associated with severe bone loss. Therefore, a variety of revision implant systems has been developed during recent years, with the augment-and-modular-cage system being one of the newest additions to this portfolio. Together with biologic downsizing by means of impaction bone grafting, this uncemented system promises a high modularity and versatility to treat all acetabular defects up to Paprosky types IIIa and IIIb without pelvic discontinuity. Read More

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December 2018

A case report on the gallbladder fluke, (Trematoda: Dicrocoeliidae), in stray cats () in Beni-Suef, Egypt.

J Parasit Dis 2018 Dec 13;42(4):646-650. Epub 2018 Oct 13.

1Department of Parasitology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt.

Scarce literature studying parasites, particularly helminths, of gallbladder of cats in Egypt are available. Stray cats () are widespread in Beni-Suef, Egypt. Therefore, a total of 62 stray cats were necropsied and parasitologically examined. Read More

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December 2018

Validation of the Acetabulum As a Skeletal Indicator of Age at Death in Modern European-Americans.

J Forensic Sci 2018 Dec 10. Epub 2018 Dec 10.

Department of Anthropology, University of West Florida, 11000 University Parkway, Bldg. 13, Pensacola, FL, 32514.

Progressive changes in the acetabulum have been used in modern skeletal age estimation, but they have not been completely understood. If their age correlations are weakened by the influence of factors like physical activity and obesity, acetabular changes should not be used for age estimation. To investigate their utility for aging, the acetabular variables of Rissech et al. Read More

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December 2018
1 Read

Three-Dimensional Models in Planning of Revision Hip Arthroplasty with Complex Acetabular Defects.

Indian J Orthop 2018 Nov-Dec;52(6):625-630

Department of Trauma, Orthopaedics and Disaster Surgery, Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation, Moscow 119991, Russia.

Background: Careful preoperative planning in revision cases with complex acetabular defects is crucial for optimal surgery outcome. However, in many cases, computed tomography (CT) scans cannot give a clear understanding of the pelvic destruction. Three-dimensional (3D) models-based on CT data can help surgeon in planning of complex acetabular reconstruction. Read More

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December 2018

Acetabular reinforcement ring with additional hook improves stability in three-dimensional finite element analyses of dysplastic hip arthroplasty.

J Orthop Surg Res 2018 Dec 7;13(1):313. Epub 2018 Dec 7.

Department of Mechanical Design Systems, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen Kibana-dai-Nishi, Miyazaki, 889-2192, Japan.

Background: The stability of acetabulum reconstructions using reinforcement rings and hooks is important for successful replacement surgery. The objective of this study was to biomechanically determine the effects of the hook on stress and the related micromotions of the acetabular reinforcement ring during the immediate postoperative period.

Methods: Acetabular reinforcement ring models were developed using a nonlinear, three-dimensional, finite element method. Read More

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December 2018

Do dGEMRIC and T2 Imaging Correlate With Histologic Cartilage Degeneration in an Experimental Ovine FAI Model?

Clin Orthop Relat Res 2018 Nov 29. Epub 2018 Nov 29.

F. Schmaranzer, E. F. Liechti, M. Tannast, Department of Orthopaedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland L. Arendt, K. Nuss, B. von Rechenberg, M. Tannast, Musculoskeletal Research Unit (MSRU), Equine Hospital, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland P. R. Kircher, Department of Small Animals, Division of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland.

Background: Biochemical MRI of hip cartilage such as delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) and T2 mapping is increasingly used to judge cartilage quality in the assessment of femoroacetabular impingement (FAI). The current evidence is sparse about which of these techniques yields a stronger correlation with histologic cartilage degeneration because of the difficulty in validating biochemical MRI techniques against histology in the clinical setting. Recently, an experimental ovine FAI model was established that induces chondrolabral damage and offers a validated platform to address these limitations. Read More

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November 2018
5 Reads

Elite Rowers Demonstrate Consistent Patterns of Hip Cartilage Damage Compared With Matched Controls: A T2* Mapping Study.

Clin Orthop Relat Res 2018 Nov 27. Epub 2018 Nov 27.

B. Bittersohl, C. Benedikter, A. Franz. T. Hesper, R. Krauspe, C. Zilkens, Department of Orthopedics, University of Düsseldorf, Medical Faculty, Düsseldorf, Germany C. Schleich, G. Antoch, Department of Diagnostic and Interventional Radiology, University of Düsseldorf, Medical Faculty, Düsseldorf, Germany H. S. Hosalkar, Hosalkar Institute, San Diego, CA, USA; Joint Preservation and Deformity Correction, Paradise Valley Hospital, San Diego, CA, USA; and Hip Preservation, Tricity Medical Center, San Diego, CA, USA One of the authors certifies that he (RK) has received or may receive payments or benefits, during the study period, an amount of less than USD 10,000 from Corin (Cirencester, UK).

Background: Rowing exposes the femoral head and acetabulum to high levels of repetitive abutment motion and axial loading that may put elite athletes at an increased risk for developing early hip osteoarthritis.

Questions/purposes: Do elite rowers demonstrate characteristic hip cartilage lesions on T2 MRI sequences compared with asymptomatic individuals who do not row?

Methods: This study included 20 asymptomatic rowers (mean age, 23 ± 3 years; nine females, 11 males) who had a minimum of 5 years of intensive (≥ 12 hours/week) training. The recruiting of the rowers took place from the central German federal rowing base, which has inherent intense training and selection requirements to declare these athletes as "elite rowers. Read More

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November 2018
1 Read

Soft tissue restrictors of femoral elevation in direct anterior approach-an anatomic study.

J Orthop Surg Res 2018 Dec 4;13(1):308. Epub 2018 Dec 4.

Department of Orthopedics, Changzhou No.2 People's Hospital, the Affiliated Hospital of Nanjing Medical University, 29 Xinglong Alley, Changzhou City, 213003, Jiangsu Province, People's Republic of China.

Background: With the patient in a constant supine position, elevation of the femur in THA (DAA) provides a more intuitive and conducive location of the acetabulum for the correct placement of the acetabular prosthesis, but elevation of the femur for broaching becomes more challenging. The purpose of this study is to analyze the restriction of the ischiofemoral ligament and short external rotation muscles, and its effect on the elevation of the proximal femur in the DAA.

Methods: The study subjects comprised 5 freshly frozen cadavers with 10 normal hips. Read More

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December 2018
1 Read

Impact of acetabular reaming depth on reconstruction of rotation center in primary total hip arthroplasty.

BMC Musculoskelet Disord 2018 Nov 30;19(1):425. Epub 2018 Nov 30.

Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 xiantai street, Changchun, 130033, People's Republic of China.

Purpose: To study the impact of acetabular reaming depth on reconstruction of rotation center (RC) in unilateral primary total hip arthroplasty (UPTHA) and guide individualized preoperative design.

Methods: 200 postoperative standard bilateral hip anteroposterior radiographs after UPTHA were included, which were collected from January, 2013 to June, 2017 in our hospital. Osteonecrosis of femoral head was the only diagnosis in this cohort. Read More

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November 2018
2 Reads

The "Well-Cap" Technique: Screw Insertion for Pelvic Nutrient Foramen Hemostasis.

J Surg Orthop Adv Fall 2018;27(3):246-250

University of Cincinnati Medical Center, Department of Orthopaedic Surgery, Cincinnati, Ohio.

Several approaches to the pelvis and acetabulum involve subperiosteal dissection of the iliacus from the internal iliac fossa.Typically bleeding is encountered from the nutrient foramen located near the sacroiliac joint. Bone wax and electrocautery have traditionally been used to achieve hemostasis from this foramen but produce inconsistent results. Read More

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November 2018
3 Reads

Microinstability of the Hip-Gaining Acceptance.

Authors:
Marc R Safran

J Am Acad Orthop Surg 2018 Nov 20. Epub 2018 Nov 20.

From the Department of Orthopaedic Surgery, and the Department of Sports Medicine, Stanford University, Redwood City, CA.

The hip has generally been considered an inherently stable joint. However, the femoral head moves relative to the acetabulum. Although the bones are primarily important in hip stability, the importance of the soft tissues has recently been demonstrated. Read More

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November 2018

Role of the acetabular labrum on articular cartilage consolidation patterns.

Biomech Model Mechanobiol 2018 Nov 24. Epub 2018 Nov 24.

Department of Mechanical Engineering, Korea University, Seoul, Korea.

Damage to the acetabular labrum has been associated with cartilage degeneration. Because conventional pressure measurement devices were unable to examine the sealing function of the acetabular labrum on cartilage contact mechanics, we used an image-based computational method to examine how labrectomy affects articular cartilage contact area and strain patterns in porcine hips. Cyclically loaded hip samples were continuously imaged in a CT scanner every 3 min to trace the positions of the femur and acetabulum. Read More

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November 2018
1 Read

Morphogenetic mechanism of the acquisition of the dinosaur-type acetabulum.

R Soc Open Sci 2018 Oct 17;5(10):180604. Epub 2018 Oct 17.

Department of Ecological Developmental Adaptability Life Sciences, Graduate School of Life Sciences, Tohoku University, 6-3, Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.

Understanding morphological evolution in dinosaurs from a mechanistic viewpoint requires the elucidation of the morphogenesis that gave rise to derived dinosaurian traits, such as the perforated acetabulum. In the current study, we used embryos of extant animals with ancestral- and dinosaur-type acetabula, namely, geckos and turtles (with unperforated acetabulum), and birds (with perforated acetabulum). We performed comparative and experimental analyses, focusing on inter-tissue interaction during embryogenesis, and found that the avian perforated acetabulum develops via a secondary loss of cartilaginous tissue in the acetabular region. Read More

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October 2018
3 Reads

Comparison of acetabulum posterior wall fractures and fracture dislocations: dislocation does not affect clinical and radiological outcomes.

Acta Orthop Belg 2018 Jun;84(2):117-120

The aim of this study was to compare radiological and clinical outcomes of posterior wall acetabulum fractures and posterior wall fracture dislocations. Data were including 52 acetabulum fractures and fracture dislocations. 26 patients (%50) had posterior acetabulum fractures and fracture dislocations who were operatively treated. Read More

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June 2018
4 Reads

Traumatic Pubic-type Anterior Dislocation of the Hip with an Ipsilateral Greater Trochanter Fracture: Case Report and Review of Literature.

Cureus 2018 Sep 11;10(9):e3287. Epub 2018 Sep 11.

Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, IND.

Due to the inherent stability of the hip joint, hip dislocations constitute a relatively small proportion of all the traumatic dislocations encountered in the emergency department. Among them, the anterior type of hip dislocation is less common than the posterior type of dislocation. Anterior dislocations are usually associated with an injury to other, nearby structures like the acetabulum and femoral head. Read More

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September 2018
4 Reads

Orthopaedic challenges for mucopolysaccharidoses.

Ital J Pediatr 2018 Nov 16;44(Suppl 2):123. Epub 2018 Nov 16.

Institute for Maternal and Child Health IRCCS Burlo Garofolo, Via dell'Istria, 65, 34137, Trieste, Italy.

Mucopolysaccharidoses (MPS) are a group of diseases characterized by abnormal accumulation of glycosaminoglycans (GAGs). Although there are differences among the various disease types, the osteoarticular system is always involved. The aim of the present study was to establish a framework for MPS-related orthopaedic manifestations and for their treatment. Read More

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November 2018
2 Reads

Acute management of acetabular fractures by total hip arthroscopy using an anterior approach.

Rev Esp Cir Ortop Traumatol 2018 Nov 11. Epub 2018 Nov 11.

Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitari i Politècnic La Fe, Valencia, España.

Introduction: Acetabular fractures in elderly patients present a therapeutic challenge, since their osteosynthesis may be hindered by comminution and poor bone quality. In certain cases, a good solution is acute total hip arthroplasty (THA) by direct anterior approach with or without minimal associated osteosynthesis. The objective of this study was to establish the indications and evaluate the clinical/functional, radiological results and complications, in the short and medium term, of acute THA using an anterior approach after acetabular fractures. Read More

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November 2018
3 Reads

Changes in periacetabular bone mineral density five years after resurfacing hip arthroplasty versus conventional total hip arthroplasty.

Hip Int 2018 Nov 14:1120700018808023. Epub 2018 Nov 14.

1 Department of Orthopaedics, Rijnstate Hospital, Arnhem, The Netherlands.

Introduction:: We studied whether acetabular bone mineral density (BMD) is better preserved after resurfacing hip arthroplasty (RHA) versus small diameter metal-on-metal total hip arthroplasty (THA).

Methods:: This randomised controlled trial included 82 patients. BMD was measured in 5 periprosthetic regions of interest (ROI) with dual-energy absorptiometry (DEXA) preoperatively, at 3 and 6 months, 1, 2, 3 and 5 years postoperative. Read More

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November 2018
1 Read

Comparison Of Acetabulum Posterior Wall Fractures And Fracture Dislocations: Dislocation Does Not Affect Clinical And Radiological Outcomes.

Acta Orthop Belg 2017 Dec;83(4):544-549

The aim of this study was to compare radiological and clinical outcomes of posterior wall acetabulum fractures and posterior wall fracture dislocations. Data were including 52 acetabulum fractures and fracture dislocations. Twenty-six patients (%50) had posterior acetabulum fractures and fracture dislocations who were operatively treated. Read More

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December 2017
4 Reads

An in vitro model of impaction during hip arthroplasty.

J Biomech 2018 Nov 1. Epub 2018 Nov 1.

Department of Mechanical Engineering, Imperial College London, London, SW7 2AZ, UK. Electronic address:

Impaction is required to properly seat press-fit implants and ensure initial implant stability and long term bone ingrowth, however excessive impaction or press-fit presents a high fracture risk in the acetabulum and femur. Current in-vitro impaction testing methods do not replicate the compliance of the soft tissues surrounding the hip, a factor that may be important in fracture and force prediction. This study presents the measurement of compliance of the soft tissues supporting the hip during impaction in operative conditions, and replicates these in vitro. Read More

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November 2018
2 Reads

[Intraoperative Imaging in Pelvic Surgery].

Z Orthop Unfall 2018 Nov 12. Epub 2018 Nov 12.

Klinik für Unfall- und orthopädische Chirurgie, BG Unfallklinik Ludwigshafen.

Pelvic fractures may range from highly severe, life-threatening injuries to less acute clinical entities. There are several sub-entities that are summed up as pelvic injuries. Anatomically, there are fractures of the anterior or posterior pelvic ring. Read More

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November 2018
2 Reads

Risk analysis of patients with an osteolytic acetabular defect after total hip arthroplasty using subject-specific finite-element modelling.

Bone Joint J 2018 Nov;100-B(11):1455-1462

Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand.

Aims: Osteolysis, secondary to local and systemic physiological effects, is a major challenge in total hip arthroplasty (THA). While osteolytic defects are commonly observed in long-term follow-up, how such lesions alter the distribution of stress is unclear. The aim of this study was to quantitatively describe the biomechanical implication of such lesions by performing subject-specific finite-element (FE) analysis on patients with osteolysis after THA. Read More

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November 2018
1 Read

Cup-cage reconstruction for severe acetabular bone loss and pelvic discontinuity.

Bone Joint J 2018 Nov;100-B(11):1442-1448

Department of Orthopaedics, Charité Universitaetsmedizin Berlin, Centre for Musculoskeletal Surgery, Berlin, Germany.

Aims: Severe acetabular bone loss and pelvic discontinuity (PD) present particular challenges in revision total hip arthroplasty. To deal with such complex situations, cup-cage reconstruction has emerged as an option for treating this situation. We aimed to examine our success in using this technique for these anatomical problems. Read More

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November 2018
1 Read

Long-term results of acetabular reconstruction using irradiated allograft bone.

Bone Joint J 2018 Nov;100-B(11):1449-1454

Lower Limb Arthroplasty Unit, Northern General Hospital, Sheffield, UK.

Aims: The management of acetabular defects at the time of revision hip arthroplasty surgery is a challenge. This study presents the results of a long-term follow-up study of the use of irradiated allograft bone in acetabular reconstruction.

Patients And Methods: Between 1990 and 2000, 123 hips in 110 patients underwent acetabular reconstruction for aseptic loosening, using impaction bone grafting with frozen, irradiated, and morsellized femoral heads and a cemented acetabular component. Read More

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November 2018
1 Read

Periprosthetic acetabular fractures: A New classification proposal.

Injury 2018 Nov;49 Suppl 3:S65-S73

Orthopedic, Trauma and Spine Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, School of Medicine, AOU Policlinico Consorziale, University of Bari "Aldo Moro",Bari, Italy.

Introduction: Acetabulum periprosthetic fractures are rare, but are increasing, due to increase in high-energy trauma and a decrease in mortality index. Reconstruction of an acetabular fracture, in the presence of hip arthroplasty can be very complex and represents a real challenge for orthopedic surgeon. Aim of this multicentric study is to classify periprosthetic acetabulum fractures and to propose a treatment algorithm. Read More

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November 2018
1 Read

Backside wear in acetabular hip joint replacement.

Acta Biomater 2019 Jan 5;83:467-476. Epub 2018 Nov 5.

Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany. Electronic address:

Introduction: Besides head-insert articulation in hip joint replacements, micro-motions between the backside of assembled polyethylene acetabular liners and the metal cup may cause additional wear. Pelvic osteolysis frequently occurs in the region of screw holes, and cup loosening hints to clinically relevant amounts of polyethylene backside wear. It has yet to be confirmed whether backside wear particles differ in size and morphology compared to articulating wear. Read More

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January 2019
2 Reads

The role of Gdf5 regulatory regions in development of hip morphology.

PLoS One 2018 2;13(11):e0202785. Epub 2018 Nov 2.

Department of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America.

Given GDF5 involvement in hip development, and osteoarthritis (OA) and developmental hip dysplasia (DDH) risk, here we sought to assess the role(s) of GDF5 and its regulatory sequence on the development of hip morphology linked to injury risk. The brachypodism (bp) mouse, which harbors a Gdf5 inactivating mutation, was used to survey how Gdf5 loss of function impacts the development of hip morphology. Two transgenic Gdf5 reporter BAC lines were used to assess the spatiotemporal expression of Gdf5 regulatory sequences. Read More

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November 2018
2 Reads

Lichen as Micro-Ecosystem: Extremophilic Behavior with Astrobiotechnological Applications.

Astrobiology 2018 Dec 31;18(12):1528-1542. Epub 2018 Oct 31.

1 Department of Biology, University of Crete, Voutes University Campus , Heraklion, Greece .

This work demonstrates the tolerance of lichen Pleurosticta acetabulum under extreme conditions similar to those encountered in extraterrestrial environments. Specifically, the impact of three extreme Mars-like conditions-complete dehydration, extremely low temperature (-196°C/77K), and oxygen depletion-on lichens was investigated. The symbiosis of mycobiont and photobiont partners creates a micro-ecosystem that ensures viability of both symbiotic partners under prolonged desiccation and extremely low temperatures without any cultivation care. Read More

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December 2018
2 Reads

Short-term follow-up of anterior and posterior both column fractures of acetabulum managed through both column plating.

Eur J Orthop Surg Traumatol 2018 Oct 30. Epub 2018 Oct 30.

Baroda Medical College and SSG Hospital Vadodara, Vadodara, Gujarat, India.

Objective: To evaluate the results of short-term follow-up of patients of both column acetabular fractures managed through anterior and posterior column plating.

Introduction: Both column acetabular fractures are challenging articular injuries. Majority of them are treated operatively. Read More

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October 2018
2 Reads

Use of Bone Marrow Aspirate Concentrate with Acetabular Labral Repair for the Management of Chondrolabral Junction Breakdown.

Arthrosc Tech 2018 Oct 1;7(10):e981-e987. Epub 2018 Sep 1.

Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A.

Despite advances in techniques for acetabular labral repair, strategies for mitigating or reversing damage to the chondrolabral junction do not yet exist. Cartilage repair techniques such as autologous chondrocyte implantation, matrix-induced autologous chondrocyte implantation, osteochondral autograft transfer, microfracture, and bone marrow aspirate concentrate (BMAC) have all been suggested to restore joint congruity and minimize further chondral deterioration. However, chondrocyte implantation techniques and osteochondral grafts are technically challenging in the hip because of its constrained nature, and many cell-based therapies have shown suboptimal results near the chondrolabral junction because of the increased shear forces at the peripheral acetabulum and increased stress at the weight-bearing region of the joint. Read More

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October 2018

Triple nonunion after steel-like triple pelvic osteotomy.

Eklem Hastalik Cerrahisi 2018 Dec;29(3):193-7

Department of Orthopedics and Traumatology, Medicine Faculty of Afyon Kocatepe University, 03200 Afyonkarahisar, Turkey.

Triple pelvic osteotomy (TPO) is a widely known and accepted procedure carried out to treat acetabular dysplasia in adults. According to this technique, osteotomies are performed through the ischium, ilium and pubis in order to mobilize the whole acetabulum. In this article, we report a 30-year-old female patient who was admitted to our outpatient clinic with a complaint of intense pain after standing or walking. Read More

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December 2018
1 Read

[Acetabular cup position on high hip and anatomical position in total hip arthroplasty for Crowe III developmental dysplasia of hip joint].

Zhongguo Gu Shang 2018 Oct;31(10):922-926

Puyang Oil Field General Hospital, Puyang 457001, Henan, China.

Objective: To evaluate clinical outcomes of acetabular cup position on high hip and anatomical position in total hip arthroplasty for Crowe III developmental dysplasia of hip joint.

Methods: Forty-six patients(58 hips) treated with high hip center THA from January 2010 to December 2015, including 6 males (8 hips) and 40 females(50 hips) aged from 40 to 70 years old with an average of(54.3±7. Read More

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October 2018
7 Reads

Three-dimensional assessment of the influence of juvenile pubic symphysiodesis on the pelvic geometry of dogs.

Am J Vet Res 2018 Nov;79(11):1217-1225

OBJECTIVE To evaluate the 3-D geometry of canine pelves and to characterize the long-term effects of juvenile pubic symphysiodesis (JPS) on pelvic geometry by comparing the pelvic configuration between littermates that did and did not undergo the procedure. ANIMALS 24 Labrador Retriever, Golden Retriever, or Labrador Retriever-Golden Retriever crossbred service dogs from 13 litters. PROCEDURES At 16 weeks old, puppies with a hip joint distraction index ≥ 0. Read More

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November 2018
5 Reads

First evidence of polychaete intermediate hosts for Neospirorchis spp. marine turtle blood flukes (Trematoda: Spirorchiidae).

Int J Parasitol 2018 Dec 25;48(14):1097-1106. Epub 2018 Oct 25.

Center for Tropical & Emerging Global Diseases, University of Georgia, Coverdell Room 370B, 500 D.W. Brooks Drive, Athens, GA 30602, USA; Center for Global Health Infectious Diseases Research, University of South Florida, 3270 Spectrum Blvd, Tampa, FL 33612, USA. Electronic address:

Life cycles of spirorchiids that infect the vascular system of turtles are poorly understood. Few life cycles of these blood flukes have been elucidated and all intermediate hosts reported are gastropods (Mollusca), regardless of whether the definitive host is a freshwater or a marine turtle. During a recent survey of blood fluke larvae in polychaetes on the coast of South Carolina, USA, spirorchiid-like cercariae were found to infect the polychaetes Amphitrite ornata (Terebellidae) and Enoplobranchus sanguineus (Polycirridae). Read More

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December 2018
5 Reads

The Hip Morphology Changes with Ageing in Asian Population.

Biomed Res Int 2018 27;2018:1507979. Epub 2018 Sep 27.

Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China.

Objectives: This study aims to determine the changing in hip anatomy parameters with age and reveals the reason for the extorsion of lower extremity in the aged.

Design: Retrospective study.

Participants: One hundred and forty patients who had received imaging check of the femur and acetabulum between October 2013 and October 2016 were included in this study. Read More

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September 2018
2 Reads

The usefulness of wide excision assisted by a computer navigation system and reconstruction using a frozen bone autograft for malignant acetabular bone tumors: a report of two cases.

BMC Cancer 2018 Oct 24;18(1):1036. Epub 2018 Oct 24.

Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.

Background: Difficult resection of tumors from regions with complex local anatomy, such as the pelvis and sacrum, is likely to result in inadequate surgical margins (intralesional or marginal); this is because three-dimensional osteotomy is difficult particularly around the acetabulum. Additionally, removal of the joint makes reconstruction very difficult; thus, retention of good function also becomes difficult. In musculoskeletal oncology, computer navigation systems are still not widely used to prevent tumor-positive margins. Read More

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October 2018
1 Read

Incidence and types of preceding and subsequent fractures in cats with patellar fracture and dental anomaly syndrome.

J Feline Med Surg 2018 Oct 22:1098612X18800837. Epub 2018 Oct 22.

2 Langford Veterinary Services, University of Bristol, UK.

Objectives: The aim of this study was to document the incidence of preceding and subsequent fractures to the patellar fractures in cats with patellar fractures and dental anomaly syndrome.

Methods: Records of cats with patellar fracture and dental anomaly syndrome were retrieved from the combined databases at the University of Bristol, UK, and Exclusively Cats Veterinary Hospital, USA. A request was made to complete a questionnaire to obtain long-term follow-up of these cats with respect to their current status and fractures to other bones; radiographs and histories were requested and were reviewed for treatment of ongoing fractures and outcome. Read More

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October 2018
1 Read

Method for quantitative assessment of acetabular bone defects.

J Orthop Res 2018 Oct 22. Epub 2018 Oct 22.

Aesculap AG, Research & Development, Am Aesculap-Platz, 78532 Tuttlingen, Germany.

The objective of the study was to suggest a novel quantitative assessment of acetabular bone defects based on a statistical shape model, validate the method, and present preliminary results. Two exemplary CT-data sets with acetabular bone defects were segmented to obtain a solid model of each defect pelvis. The pathological areas around the acetabulum were excluded and a statistical shape model was fitted to the remaining healthy bone structures. Read More

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October 2018

[Revision of Pelvic Rotation Angle and One Idea for Improving Reproducibility of Hip Joint Radiographic Images (False Profile View)].

Nihon Hoshasen Gijutsu Gakkai Zasshi 2018 ;74(10):1163-1169

Department of Radiology, Saitama Prefecture Saiseikai Kurihashi Hospital.

Radiographic images of the hip joint can include a false profile view when the foot of the affected side is positioned parallel to the detector plane and the pelvic rotation angle is 65°. However, to the best of our knowledge, pelvic rotation angle has yet to be adequately investigated. The present study aimed to improve radiographic imaging reproducibility by testing pelvic rotation angles using the pubic symphysis and greater trochanter as a guide. Read More

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January 2018
5 Reads

Subtrochanteric femoral shortening osteotomy concomitantly performed with revision total hip arthroplasty: A case report.

Medicine (Baltimore) 2018 Oct;97(42):e12934

Rationale: Total hip arthroplasty (THA) concomitant with subtrochanteric femoral shortening osteotomy for Crowe type IV dysplastic hip has been reported. However, the combination of subtrochanteric femoral osteotomy and revision THA has only been mentioned in one case report.

Patient Concerns: A 67-year-old female had a history of congenital dislocation of both hips. Read More

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October 2018
1 Read

[Classification and reconstruction of acetabular defects in revision total hip arthroplasty].

Zhongguo Gu Shang 2018 Sep;31(9):874-879

Department of Orthopaedics, the Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, China;

As a mature technology gradually, the total hip arthroplasty has been known and conducted by more and more orthopedic surgeons. However, it also increased the number of hip revisions. The reasons for revision of hip mainly include: unstable, infection, aseptic loosening prosthesis, prosthesis peripheral fracture, liner wear and so on, and the acetabulum bone defect and the choice of acetabular prosthesis have been perplexing surgeons. Read More

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September 2018
1 Read

[Treatment of Pipkin I and II hip fractures by anterolateral hip approach].

Zhongguo Gu Shang 2018 Sep;31(9):858-862

Department of Trauma and Joint Surgery, Taizhou Municipal Hospital, Taizhou 318000, Zhejiang, China.

Objective: To investigate the clinical effect of absorbable screw fixation by anterolateral approach (McFarland and Osborne approach) for the treatment of Pipkin type I and type II fractures.

Methods: From March 2008 to February 2016, 8 cases of femoral head fractures were treated by absorbable screw fixation through anterolateral approach (McFarland and Osborne approach) including 5 males and 3 females with an average age of 36 years old ranging 23 to 58 years old. The course of the disease was 3 to 12 days (means 5 days). Read More

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September 2018
6 Reads

Staple versus suture closure for ankle fracture fixation: Retrospective chart review for safety and outcomes.

Foot (Edinb) 2018 Dec 22;37:71-76. Epub 2018 Aug 22.

University of Alabama at Birmingham, Department of Orthopaedic Surgery, USA. Electronic address:

Introduction/aim: Recent comparisons of suture versus metal staple skin closure on the rates of wound complications in orthopaedic surgeries have yielded conflicting results. Several studies have since started to approach this question based on anatomic location, comparing suture versus staple closure in total hip and knee arthroplasty and acetabulum fracture surgery. Ankle fractures are one of the most commonly treated fractures by orthopaedic surgeons with unique challenges to skin closure due to the lack of subcutaneous support. Read More

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December 2018
4 Reads

Pincer-type MRI morphology seen in over a third of asymptomatic healthy volunteers without femoroacetabular impingement.

J Magn Reson Imaging 2018 Oct 14. Epub 2018 Oct 14.

Department of Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland.

Background: In daily routine, pincer femoroacetabular impingement (FAI) findings are often seen without a clinical diagnosis of pincer FAI.

Purpose: To assess the presence of pincer FAI MRI findings in asymptomatic volunteers with negative impingement test versus patients with clinically confirmed FAI.

Study Type: Case-control study. Read More

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October 2018

Clinical Anatomy of the Ligament of the Head of Femur.

Clin Anat 2018 Oct 14. Epub 2018 Oct 14.

Department of Anatomy, University of Otago, Dunedin, 9016, New Zealand.

The ligament of the head of femur (LHF) has gained clinical attention recently and is reported to contribute to hip stability. This study explores its morphology and morphometry, information that may help inform surgical decision making. Gross anatomical dissections were undertaken on 229 embalmed hips from European (n = 105) and Thai (n = 124) adult cadavers to examine LHF anatomy. Read More

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October 2018
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Epiphyseal fusion and dental development in Pan paniscus with comparisons with Pan troglodytes.

Am J Phys Anthropol 2018 Dec 14;167(4):903-913. Epub 2018 Oct 14.

University of Sheffield, Department of Archaeology, Minalloy House, Sheffield, United Kingdom.

Objectives: Compared with frequent studies of skeletal development in chimpanzees, relatively little is known about bonobo skeletal development. This study seeks to explore the relationship between skeletal and dental development in both species of Pan. New data are presented for fusion sites not previously observed in bonobos. Read More

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December 2018

Biomechanical Optimization-Based Planning of Periacetabular Osteotomy.

Adv Exp Med Biol 2018 ;1093:157-168

Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland.

Modern computerized planning tools for periacetabular osteotomy (PAO) use either morphology-based or biomechanics-based methods. The latter rely on estimation of peak contact pressures and contact areas using either patient-specific or constant thickness cartilage models. We performed a finite element analysis investigating the optimal reorientation of the acetabulum in PAO surgery based on simulated joint contact pressures and contact areas using patient-specific cartilage model. Read More

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January 2018
3 Reads