19,849 results match your criteria Hip Dislocation

Postaxial hypoplasia of the lower extremity associated with congenital dislocation of the patella: A case report.

Medicine (Baltimore) 2022 Jun 24;101(25):e29283. Epub 2022 Jun 24.

Health Science Division, Division of Plastic and Reconstructive Surgery, Unit of Hip and Pelvis Orthopedic Surgery, Hospital de Traumatología y Ortopedia No. 21, Instituto Mexicano del Seguro Social (IMSS), Monterrey, N.L., México.

Rationale: Evaluation of clinical and radiologic abnormalities in patients with postaxial hypoplasia of the lower extremity (PHLE) for treatment decisions represents a major challenge, which is more complicated when PHLE is associated with congenital dislocation of the patella.

Patient Concerns: : Herein, we present the case of an 8-year-old female patient with evident length inequality in her left lower extremity and inability to walk.

Diagnoses: Radiological evaluation revealed PHLE with fibular hemimelia, proximal femoral focal deficiency, tarsal coalition, and congenital patellar dislocation of the patella. Read More

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The International Hip Dysplasia Institute (IHDI) classification is more informative than the Tönnis classification.

Acta Radiol 2022 Jun 26:2841851221110447. Epub 2022 Jun 26.

Department of Orthopaedics, Lund University, 59565Skåne University Hospital, Malmo, Sweden.

Background: A new, supposedly more reproducible radiographic classification, set to replace the Tönnis classification of hip dislocations, was proposed in 2015: the International Hip Dysplasia Institute (IHDI) classification.

Purpose: To compare the IHDI classification with the Tönnis classification when evaluating the severity of hip dislocations as well as their respective inter- and intra-observer reliability.

Material And Methods: Since January 2000, Swedish-born children with a hip dislocation were prospectively registered. Read More

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Development of bony range of motion (B-ROM) boundary for total hip replacement planning.

Comput Methods Programs Biomed 2022 Jun 8;222:106937. Epub 2022 Jun 8.

WMG, The University of Warwick, Coventry CV4 7AL, UK.

Background And Objective: Pre-operative surgical planning using computer simulation is increasingly standard practice before Total Hip Arthroplasty (THA), in order to determine the optimal implant positions, and thereby minimise post-operative complications such as dislocation, wear and leg length discrepancy. One of the limitations of current methods, however, is the lack of information on the subject-specific reference range of motion (ROM) that could be used as targets for surgical planning. Only a limited number of hip motions are considered, which are neither subject-specific, nor representative of all the hip motions associated with all the activities of daily livings (ADLs). Read More

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Lateral Patellar Dislocation: A Critical Review and Update of Evidence-Based Rehabilitation Practice Guidelines and Expected Outcomes.

JBJS Rev 2022 May 5;10(5). Epub 2022 May 5.

Department of Physical Therapy, University of Kentucky, Lexington, Kentucky.

»: Nonoperative treatment of a lateral patellar dislocation produces favorable functional results, but as high as 35% of individuals experience recurrent dislocations.

»: Medial patellofemoral ligament reconstruction is an effective treatment to prevent recurrent dislocations and yield excellent outcomes with a high rate of return to sport.

»: Both nonoperative and postoperative rehabilitation should center on resolving pain and edema, restoring motion, and incorporating isolated and multijoint progressive strengthening exercises targeting the hip and knee. Read More

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Model-Based Acetabular Cup Orientation Optimization Based On Minimizing the Risk of Edge-Loading and Implant Impingement Following Total Hip Arthroplasty.

J Biomech Eng 2022 Jun 24. Epub 2022 Jun 24.

Motion Research Group, Department of Systems Design Engineering, University of Waterloo, Waterloo, ON, Canada.

In this paper, a computationally-efficient model-based method for determining patient-specific optimal acetabular cup alignment for total hip arthroplasty (THA) is presented. The proposed algorithm minimizes the risk of implant impingement and edge-loading, which are reported as the major causes of hip dislocation following THA. First, by using motion capture data recorded from the patient performing different daily activities, the hip contact force and the relative orientation of the femur and pelvis are calculated by a musculoskeletal model. Read More

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Avascular Necrosis of Femoral Head-Overview and Current State of the Art.

Int J Environ Res Public Health 2022 Jun 15;19(12). Epub 2022 Jun 15.

Faculty of Medicine, Collegium Medicum, Cardinal Stefan Wyszynski University in Warsaw, Woycickiego 1/3, 01-938 Warsaw, Poland.

Avascular necrosis (AVN) of the femoral head is caused by disruption of the blood supply to the proximal femur. The alterations in the blood supply may occur following a traumatic event or result from a non-traumatic cause. Femoral neck fracture and hip dislocation and associated surgical procedures, corticosteroid therapy, and alcohol abuse frequently lead to AVN development. Read More

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Secondary (Late) Developmental Dysplasia of the Hip with Displacement: From Case Studies to a Proposition for a Modified Diagnostic Path.

Diagnostics (Basel) 2022 Jun 15;12(6). Epub 2022 Jun 15.

Department of Bioinformatics and Telemedicine, Faculty of Medicine, Jagiellonian University Medical College, 7e Kopernika st., 31-034 Krakow, Poland.

(1) Background. This paper presents a case of hip joints that were initially described as either normal or physiologically immature in four successive ultrasound examinations using the static method by Graf; however, the final treatment of the patient involved multiple hip reconstruction surgeries. (2) Case presentation. Read More

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Risk Stratification and Pain Outcomes Following Revision Total Hip Arthroplasty for Adverse Local Tissue Reactions.

J Arthroplasty 2022 Jun 20. Epub 2022 Jun 20.

Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA; Arthritis and Arthroplasty Design Lab, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA; Department of Bioengineering, and Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA. Electronic address:

Introduction: Revision total hip arthroplasty (THA) for adverse local tissue reactions (ALTRs) secondary to head-neck taper corrosion is associated with a high complication rate. Diagnosis of ALTR is based on risk stratification using the patient's history and examination, implant risk, serum metal ion levels, and imaging. The purpose of this study was to determine if stratification using similar risk factors is predictive of outcomes following revision THA for metal-on-polyethylene (MoP) ALTR. Read More

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Revision Total Hip Arthroplasty for Aseptically Failed Metal-on-Metal Hip Resurfacing Arthroplasty.

J Arthroplasty 2022 Jun 20. Epub 2022 Jun 20.

Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W., Rochester, MN 55905. Electronic address:

Introduction: While common in practice, studies assessing outcomes of failed metal-on-metal (MoM) resurfacings converted to total hip arthroplasties (THAs) are limited. We determined the outcomes associated with revision THA of aseptic MoM hip resurfacings.

Methods: Between 2000 to 2019, we identified 52 revision THAs for failed MoM hip resurfacings through our total joint registry. Read More

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Rare case of a low energy traumatic anterior dislocation of the native hip.

BMJ Case Rep 2022 Jun 22;15(6). Epub 2022 Jun 22.

Trauma and Orthopaedics, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, Norfolk, UK.

Anterior dislocations of the native hip are rare injuries, and normally a result of high energy trauma such as road traffic accidents. Delays in reduction of over 12 hours have been shown to increase the risk of avascular necrosis to the head of the femur significantly. We report the case of an elderly man who sustained an anterior dislocation of his native hip following a fall. Read More

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[Acetabular plasty assisted by 3D printing for the treatment of dislocation of hip joint in children with cerebral palsy].

Zhongguo Gu Shang 2022 Jun;35(6):572-7

Neonatal Medical Center, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China.

Objective: To identify types of acetabular dysplasia, select the most suitable acetabular plasty, and analyze indications and efficacy of three types of acetabular plasty in treating dislocation of hip joint in children with cerebral palsy by 3D printing technology.

Methods: From July 2019 to December 2019, 7 children with cerebral palsy with hip dislocation were treated with acetabular plasty assisted by 3D printing technology, including 3 males and 4 females, aged from 3 from 8 years old;3 patients on the left side, 2 patients on the right side, and 2 patients on both sides. Subluxation of hip joint occurred in 2 patients and dislocation of hip joint occurred in 5 patients. Read More

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Early outcomes of using custom-made augments in revision total hip arthroplasty.

Int Orthop 2022 Jun 21. Epub 2022 Jun 21.

Vreden National Medical Research Center of Traumatology and Orthopedics, Ministry of Health of Russian Federation, Academician Baykova Street House 8, 195427, St. Petersburg, Russian Federation.

Introduction: The continuing high demand for revision total hip arthroplasty (RTHA) requires not only additional economic costs, but also the search for new, effective methods to manage the reconstruction of acetabular bone loss. This study focuses on the assessment of the clinical and radiographic outcomes after RTHA using custom-made augments (CMA) in the short-term follow-up period.

Materials And Methods: We retrospectively analyzed the results of using CMAs in 19 patients (20 hips). Read More

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Two-Level Pedicle Subtraction Osteotomy in Lateral Position for an Ankylosing Spondylitis Patient With Severe Thoracolumbar Kyphosis and Hip Flexion Contracture: A Case Report.

Oper Neurosurg (Hagerstown) 2022 Jul 20;23(1):e72-e76. Epub 2022 Apr 20.

The Orthopedic Hospital, The First Affiliated Hospital of Nanchang University, Jiangxi, China.

Background And Importance: Spinal osteotomy and total hip replacement (THR) are the most common surgical interventions for ankylosing spondylitis (AS). It is recommended that patients with AS with severe thoracolumbar kyphotic deformity (TLKD) and flexed hips receive spinal osteotomy before THR to reduce the risk of hip prosthesis dislocation after THR. Standardly, spinal osteotomy is performed in the prone position; however, it is impractical to place patients with AS with kyphosis and closed hips in a prone position. Read More

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School Nurses on the Front Lines of Healthcare: Emergencies Associated With Sport and Physical Activities (Part 4)-The Assessment of Pediatric Shoulder and Hip Injuries Utilizing the "SPASMS" Mnemonic.

NASN Sch Nurse 2022 Jun 19:1942602X221104204. Epub 2022 Jun 19.

Professor, Departments of Emergency Medicine and Pediatrics, Penn State College of Medicine, Attending Pediatric Emergency Medicine physician, Penn State Hershey Medical Center Hershey, PA.

Sport participation is an important part of the development, both physically and mentally, of children and adolescents in the United States. Illness and injury associated with sport and physical activities may occur in the school setting. Although most sport-related illness and injury in students are considered minor emergencies, life-threatening illnesses or injuries may occur. Read More

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A multi-center retrospective comparative study of third generation Ceramic-on- Ceramic total hip arthroplasty in patients younger than 45 years with or without the sandwich liner: A ten-year minimum.

J Orthop Surg (Hong Kong) 2022 May-Aug;30(2):10225536221109960

Department of Orthopedics, 74566The First Affiliated Hospital of Soochow University, Suzhou, China.

Background: Ceramic-on-ceramic couplings are attractive alternative bearing surfaces that have been reported to eliminate or reduce problems related to polyethylene wear debris. However, the material in THA still remains one of the major concerns about the risk of fracture, due to its brittleness.

Objective: The present study aims at reporting the fracture rate of a series of ceramic-on-ceramic THAs with use of the sandwich liner combined with a ceramic femoral head, and attempt to detect the relative risk factors, possible cause and assesse the medium-term clinical results. Read More

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Use of Customized 3D-Printed Titanium Augment With Tantalum Trabecular Cup for Large Acetabular Bone Defects in Revision Total Hip Arthroplasty: A Midterm Follow-Up Study.

Front Bioeng Biotechnol 2022 1;10:900905. Epub 2022 Jun 1.

Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.

In revision total hip arthroplasty (THA), large acetabular bone defects pose challenges for surgeons. Recently, wide application of trabecular tantalum, which has outstanding biocompatibility and mechanical properties, and the development of three-dimensional (3D) printing have led to the introduction of new schemes for acetabular reconstruction. However, few studies have focused on the treatment of bone defects with customized 3D-printed titanium augments combined with tantalum trabecular cup. Read More

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Acta Ortop Bras 2022 15;30(2):e247996. Epub 2022 Apr 15.

Universidade de São Paulo, Medical School, Hospital das Clínicas, Institute of Orthopedics and Traumatology (IOT-HCFMUSP), São Paulo, SP, Brazil.

Many experimental models exist to better understand the necrosis of the femoral head etiology, both in terms of the species variety in which necrosis is induced and in the operative techniques used for treatment.

Objective: This study has two main objectives, the first is to review the literature concerning experimental models of avascular necrosis of the growing femoral head, the second, to demonstrate the experimental pig model's reproducibility using a pilot study.

Methods: This was a bibliographic review to describe the attempts over time to find the best species and technique for induction that would reproduce ischemic necrosis of the growing femoral head in humans. Read More

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Narrative Review of the Mechanism of Hip Prosthesis Dislocation and Methods to Reduce the Risk of Dislocation.

Med Sci Monit 2022 Jun 18;28:e935665. Epub 2022 Jun 18.

Department of Orthopedics and Traumatology of the Musculoskeletal System, Medical University of Warsaw, Warsaw, Poland.

Total hip arthroplasty (THA) is one of the most effective surgical procedures. It improves quality of life, increases range of motion, and reduces pain in patients with hip joint degeneration. THA allows patients to return to everyday social and professional activities. Read More

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[Three-dimensional morphological study of the effect of false acetabulum on the femoral structure in Crowe type developmental dysplasia of the hip].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2022 Jun;36(6):714-721

The Second School of Clinical Medicine, Southern Medical University, Guangzhou Guangdong, 510515, P. R. China.

Objective: To explore the effect of false acetabulum on the development and anatomical morphology of proximal femur in Crowe type Ⅳ developmental dysplasia of the hip (DDH), providing a theoretical basis for the development of femoral reconstruction strategy and prosthesis selection for total hip arthroplasty.

Methods: The medical records of 47 patients (54 hips) with Crowe type Ⅳ DDH between February 2008 and March 2020 were retrospectively analyzed, of which 21 patients (26 hips) were Crowe type Ⅳa (type Ⅳa group) and 26 patients (28 hips) were Crowe type Ⅳb (type Ⅳb group). There was no significant difference in general data such as gender, age, height, weight, body mass index, and side between the two groups ( >0. Read More

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Reliability and Validity of Standing Lateral Radiograph Method for Measuring Acetabular Component Version: A Modified Cross-table Lateral Radiograph Method.

Orthop Surg 2022 Jun 16. Epub 2022 Jun 16.

Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.

Objectives: To investigate the effect of the X-ray incidence angle on cup version measurements and the reliability and validity of standing lateral (SL) radiography for measuring cup versions.

Methods: Cup versions under different X-ray incidence angles were investigated by the 3D simulation analysis. Ninety-three patients, who underwent primary total hip arthroplasty (THA) with postoperative SL radiographs and CT scans between April 2020 and December 2021, were retrospectively analyzed. Read More

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Total Hip Arthroplasties for Hartofilakidis Type C1 and C2 High Hip Dislocations Demonstrate Similar Survivorship and Clinical Function at Minimum 10-year Follow-up With Cementless Implants.

J Arthroplasty 2022 Jun 14. Epub 2022 Jun 14.

Department of Orthopedics, General Hospital of Chinese PLA, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China.

Background: This study aimed to determine the differences in survivorship, clinical function, and complications among patients who have Hartofilakidis Type C1 or C2 developmental dysplasia of the hips and underwent total hip arthroplasty (THA) with cementless implants.

Methods: This retrospective study identified 84 Hartofilakidis Type C hips that underwent THA between 2002 and 2011 with a minimum 10-year follow-up (mean, 13 years, range, 10 to 19 years). Survivorship, latest Harris Hip Scores and satisfaction levels, radiographic outcomes (eg, implant stability, rate and length of subtrochanteric shortening transverse osteotomy, leg-length discrepancy, cup position, and orientation), as well as complications (eg, dislocation, periprosthetic fracture, periprosthetic joint infection) were compared to analyze the differences between Hartofilakidis C1 and C2 hips. Read More

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Hip dislocation based on Developmental Dysplasia of the Hip (DDH) in a patient with Giant Congenital Melanocytic Nevus (GCMN): A rare coexistence.

M Kaya H H Muratli

Niger J Clin Pract 2022 Jun;25(6):960-963

Department of Orthopedics and Traumatology, Marmara University Pendik Training and Research Hospital, Istanbul, Turkey.

Giant congenital melanocytic nevus (GCMN) is a rare congenital benign neoplasm with the potential to become malignant. Various extracutaneous malformations may accompany GCMN. Acetabular dysplasia accompanying GCMN was described in previous studies. Read More

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Reliability and Reproducibility of a Novel Grading System for Lesions of the Ligamentous-Fossa-Foveolar Complex in Young Patients Undergoing Open Hip Preservation Surgery.

Orthop J Sports Med 2022 Jun 9;10(6):23259671221098750. Epub 2022 Jun 9.

Department of Orthopaedic Surgery and Traumatology, Cantonal Hospital Fribourg HFR, University of Fribourg, Fribourg, Switzerland.

Background: Several classification systems based on arthroscopy have been used to describe lesions of the ligamentum teres (LT) in young active patients undergoing hip-preserving surgery. Inspection of the LT and associated lesions of the adjuvant fovea capitis and acetabular fossa is limited when done arthroscopically but is much more thorough during open surgical hip dislocation. Therefore, we propose a novel grading system based on our findings during surgical dislocation comprising the full spectrum of ligamentous-fossa-foveolar complex (LFFC) lesions. Read More

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Incidence and risk factors for persistent acetabular dysplasia in patients with developmental dislocation of the hip treated by Pavlik Harness.

J Pediatr Orthop B 2022 Jun 14. Epub 2022 Jun 14.

GuangZhou Women and Children's Medical Center, GuangZhou Medical University, Guangzhou, China.

Some patients with developmental dysplasia of the hip (DDH) before 6 months of age successfully treated by Pavlik Harness (PH) still had persistent acetabular dysplasia (PAD). This study aimed to investigate the incidence and risk factors for PAD in patients with DDH treated by PH. We retrospectively reviewed the data of 89 patients (109 hips; mean age, 3. Read More

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A Comparison of Revision Rates and Dislocation After Primary Total Hip Arthroplasty with 28, 32, and 36-mm Femoral Heads and Different Cup Sizes: An Analysis of 188,591 Primary Total Hip Arthroplasties.

J Bone Joint Surg Am 2022 Jun 16. Epub 2022 Jun 16.

Traumaplasty Melbourne, Victoria, Australia.

Background: The acetabular component diameter can influence the choice of femoral head size in total hip arthroplasty (THA). We compared the rates of revision by femoral head size for different acetabular component sizes.

Methods: Data from the Australian Orthopaedic Association National Joint Replacement Registry were analyzed for patients undergoing primary THA for a diagnosis of osteoarthritis from September 1999 to December 2019. Read More

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Total Hip Arthroplasty with Robotic Arm Assistance for Precise Cup Positioning: A Case-Control Study.

Orthop Surg 2022 Jun 14. Epub 2022 Jun 14.

Department of Orthopaedic Surgery, Tianjin Medical University General Hospital, Tianjin, China.

Objective: To determine whether more precise cup positioning can be achieved with robot-assisted total hip arthroplasty (THA) as compared to conventional THA.

Methods: In this study, between July 2019 and May 2021, 93 patients aged 23-75 years with osteonecrosis of the femoral head (ONFH) and adult developmental dysplasia of hip who underwent first hip surgery were included in the study. They were randomly assigned to either the robotic-assisted THA group (n = 45) or the conventional THA group (n = 48). Read More

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Developmental Dysplasia of the Hip: An Audit of the Ultrasound Screening Programme.

Ir Med J 2022 May 25;115(5):598. Epub 2022 May 25.

Department of Radiology, University Hospital Waterford.

Aims Developmental dysplasia of the hip (DDH) is an important cause of disability in children and young adults. Early diagnosis and treatment can help avoid more invasive interventions and long-term morbidity. This study examines the ultrasound screening programme conducted in University Hospital Waterford (UHW), and the outcomes for infants with DDH in the Southeast of Ireland. Read More

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Failure analysis of articulating polymethyl methacrylate spacers in two-stage revision total hip arthroplasty.

Bone Jt Open 2022 Jun;3(6):485-494

Institute for Locomotion, Department of Orthopedics and Traumatology ISM, CNRS, Aix-Marseille University, St. Marguerite Hospital, Marseille, France.

Aims: Two-stage exchange revision total hip arthroplasty (THA) performed in case of periprosthetic joint infection (PJI) has been considered for many years as being the gold standard for the treatment of chronic infection. However, over the past decade, there have been concerns about its safety and its effectiveness. The purposes of our study were to investigate our practice, collecting the overall spacer complications, and then to analyze their risk factors. Read More

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Abnormal spinopelvic mobility as a risk factor for acetabular placement error in total hip arthroplasty using optical computer-assisted surgical navigation system.

Bone Jt Open 2022 Jun;3(6):475-484

Adult Reconstruction and Joint Replacement Service, Department of Orthopedic Surgery, Hospital for Special Surgery, New York, New York, USA.

Aims: Navigation devices are designed to improve a surgeon's accuracy in positioning the acetabular and femoral components in total hip arthroplasty (THA). The purpose of this study was to both evaluate the accuracy of an optical computer-assisted surgery (CAS) navigation system and determine whether preoperative spinopelvic mobility (categorized as hypermobile, normal, or stiff) increased the risk of acetabular component placement error.

Methods: A total of 356 patients undergoing primary THA were prospectively enrolled from November 2016 to March 2018. Read More

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Step-Cut Subtrochanteric Osteotomy Combined with Total Hip Arthroplasty for Neglected Traumatic Hip Dislocations.

Clin Orthop Surg 2022 Jun 13;14(2):205-212. Epub 2022 Apr 13.

Central Institute of Orthopaedics, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India.

Background: Total Hip Arthroplasty remains the standard treatment protocol for patients with neglected traumatic dislocations of the hip with arthritis. A total hip arthroplasty needs to be frequently combined with a subtrochanteric shortening femoral osteotomy to aid in the reduction of the hip joint in such cases. Still long-term stable implant fixation, rigid construct, and favorable functional outcome remain a challenge. Read More

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