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Lewis CL, Shefelbine SJ. Lost in research translation: Female athletes are not male athletes, especially at the hip. J Orthop Res 2024; 42:2054-2060. [PMID: 38644357 DOI: 10.1002/jor.25860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/22/2024] [Accepted: 04/03/2024] [Indexed: 04/23/2024]
Abstract
Altered shape of the proximal femur (cam morphology) or acetabulum (pincer morphology) is indicative of femoroacetabular impingement, which can result in hip pain and osteoarthritis of the hip. As mechanical load during growth affects the resulting bone shape, there is strong evidence in males that cam morphology develops during skeletal growth while physes are open, rather than as an adaptation after growth plates are closed (skeletal maturity). This adaptation is particularly evident in athletes who participate at elite levels prior to skeletal maturity. The research providing this evidence, however, has primarily focused on male athletes. Despite the lack of inclusion in the research, females consistently comprise two thirds of the clinical and surgical populations with structural hip pain or pathology. Knowledge gained from male-dominated cohorts may not appropriately transfer to female athletes, especially at the hip. This perspectives article briefly reviews differences between females and males in femoral and acetabular structure, hormones, timing of puberty/maturation, hypermobility, activity level and movement control-factors which affect hip structure development and loading. Without female-focused research, the application of research findings from male athletes to female athletes may lead to ineffective or even inappropriate recommendations and treatments. Thus, there is a critical need for investment in research to promote life-long hip health for females.
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Affiliation(s)
- Cara L Lewis
- Department of Physical Therapy, Sargent College of Health & Rehabilitation Sciences, Boston University, Boston, Massachusetts, USA
| | - Sandra J Shefelbine
- Department of Mechanical and Industrial Engineering and Department of Bioengineering, Northeastern University, Boston, Massachusetts, USA
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Weinrich L, Niemann M, Braun KF, Ahmad SS, Stöckle U, Meller S. Increased asphericity of the femoral head-neck junction in professional breakers compared to hobby athletes - a retrospective case-control study. PHYSICIAN SPORTSMED 2024; 52:333-342. [PMID: 37684261 DOI: 10.1080/00913847.2023.2256210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/25/2023] [Accepted: 09/04/2023] [Indexed: 09/10/2023]
Abstract
OBJECTIVE Breaking has gained public attention as a form of sports activity. The associated intense movements of the hip joints are possibly linked to the development of femoroacetabular impingement (FAI). Therefore, this study aimed to assess clinical and radiographic FAI measures in professional breakers compared to hobby athletes. METHODS The study cohort consisted of professional breakers with persisting hip pain who were 1:1 matched to a cohort of FAI patients without professional sports careers from our outpatient clinic. The primary endpoint assessed on standardized plain radiographs was the alpha angle (AA). Further measures were the acetabular index (AI), lateral center-edge angle (LCEA), crossover sign, ischial spine sign, and femoral head extrusion index (FHEI). The modified Harris Hip Score (mHHS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score were used to obtain patient-reported measures. RESULTS We recruited ten professional breakers and matched them to ten hobby athletes. The median AA was significantly higher in the breakers compared with the hobby athletes (73° [IQR 66.5°, 84.2°]) vs. 61.8° [IQR 59.5°, 64.8°], p = 0.0004). There was a significant reduction in weekly training hours in breakers after diagnosis (13.0 hours [interquartile range [IQR] 9.5, 32.4] to 1.5 hours [IQR 0, 4.8], p = 0.0039). There were no inter-group differences regarding mHHS, WOMAC, and additional radiographic measurements. CONCLUSION Breakers have higher AA in cam-type FAI compared to nonprofessional athletes. The corresponding hip pain significantly reduced training hours and caused the end of their breaking career. The potentially high prevalence of FAI in breakers and the corresponding consequences need to be considered early when athletes present with hip pain.
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Affiliation(s)
- Luise Weinrich
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Marcel Niemann
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité, Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Karl F Braun
- Department of Trauma Surgery, University Hospital Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Sufian S Ahmad
- Hannover Medical School, Department of Orthopedic Surgery, Hannover, Germany
| | - Ulrich Stöckle
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Sebastian Meller
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
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Claes PA, Hanff DF, Weir A, Riedstra NS, Weinans H, Eygendaal D, Heerey J, Oei EH, van Klij P, Agricola R. The Association Between the Development of Cam Morphology During Skeletal Growth in High-Impact Athletes and the Presence of Cartilage Loss and Labral Damage in Adulthood: A Prospective Cohort Study With a 12-Year Follow-up. Am J Sports Med 2024; 52:2555-2564. [PMID: 39101608 PMCID: PMC11344970 DOI: 10.1177/03635465241256123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 04/17/2024] [Indexed: 08/06/2024]
Abstract
BACKGROUND Cam morphology develops during skeletal growth, but its influence on cartilage and the labrum in high-impact athletes later in life is unknown. PURPOSE To (1) explore the association between the presence and duration of cam morphology during adolescence and the cartilage and labral status 7 to 12 years later and (2) report the prevalence of cartilage loss and labral damage in a population of young male athletes (<32 years old) who played professional soccer during skeletal growth. STUDY DESIGN Cohort study (Prognosis); Level of evidence, 2. METHODS A total of 89 healthy male academy soccer players from the Dutch soccer club Feyenoord (aged 12-19 years) were included at baseline. At baseline and 2.5- and 5-year follow-ups, standardized supine anteroposterior pelvis and frog-leg lateral radiographs of each hip were obtained. At 12-year follow-up, magnetic resonance imaging of both hips was performed. Cam morphology was defined by a validated alpha angle ≥60° on radiographs at baseline or 2.5- or 5-year follow-up when the growth plates were closed. Hips with the presence of cam morphology at baseline or at 2.5-year follow-up were classified as having a "longer duration" of cam morphology. Hips with cam morphology only present since 5-year follow-up were classified as having a "shorter duration" of cam morphology. At 12-year follow-up, cartilage loss and labral abnormalities were assessed semiquantitatively. Associations were estimated using logistic regression, adjusted for age and body mass index. RESULTS Overall, 35 patients (70 hips) with a mean age of 28.0 ± 2.0 years and mean body mass index of 24.1 ± 1.8 participated at 12-year follow-up. Cam morphology was present in 56 of 70 hips (80%). The prevalence of cartilage loss was 52% in hips with cam morphology and 21% in hips without cam morphology (adjusted odds ratio, 4.52 [95% CI, 1.16-17.61]; P = .03). A labral abnormality was present in 77% of hips with cam morphology and in 64% of hips without cam morphology (adjusted odds ratio, 1.99 [95% CI, 0.59-6.73]; P = .27). The duration of cam morphology did not influence these associations. CONCLUSION The development of cam morphology during skeletal growth was associated with future magnetic resonance imaging findings consistent with cartilage loss in young adults but not with labral abnormalities.
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Affiliation(s)
- Paula A.M. Claes
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - David F. Hanff
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Adam Weir
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
- Sports Groin Pain Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Noortje S. Riedstra
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Harrie Weinans
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Denise Eygendaal
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Josh Heerey
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
| | - Edwin H.G. Oei
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Pim van Klij
- Department of Sports Medicine, Isala Clinics, Zwolle, the Netherlands
| | - Rintje Agricola
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
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AlMousa SA, Hegazi T, AlKhamis HA, AlTayyar ZA, AlMutairi MD, AlGhamdi SA, Almuhaish MI, Alzaid MM, Alsubaie SS, Alzahrani MM. Cam-type hip morphology in asymptomatic patients. Hip Int 2024; 34:372-377. [PMID: 38263909 DOI: 10.1177/11207000231225184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
BACKGROUND The alpha angle has been widely used in the assessment of cam-type of impingement, but recent studies have shown that this angle may also be high in asymptomatic patients. The aim of this study is to report the prevalence of cam-type morphology in asymptomatic volunteers and explore its correlation with hip clinical and radiological parameters. METHODS This single-centre prospective study included 48 asymptomatic male volunteers (96 hips). All candidates fulfilled the inclusion and exclusion criteria. Physical examination and 1.5 -T MRI imaging were done for bilateral hips on the same day. Alpha angle measurements were obtained from 4 different positions and cam-type morphology was considered positive using 2 different cut points >55° and >60°. Descriptive statistics were analysed and correlations were performed where appropriate and p-value < 0.05 was considered to be significant. RESULTS The prevalence of cam-type morphology using alpha angle >55° was 68.8%, 87.5%, 50% and 34.4% in the 12, 1, 2 and 3 o'clock positions respectively. While it was 38.5%, 69.8%, 26% and 12.5% in the 12, 1, 2 and 3 o'clock positions of the studied hips respectively using alpha angle >60°. The maximum alpha angle was more frequently prevalent at the 1 o'clock position in 71 (74%). Labral tear was detected in 26 (27.1%) hips and impingement test was positive in 12 (12.5%) hips. There was no correlation between the presence of cam-type morphology and range of motion of the hip, presence of positive impingement test nor labral tears. CONCLUSIONS Cam-type morphology prevalence is high among asymptomatic males, and mostly pronounced at the 1 o'clock position. A correlation between high alpha angle and positive impingement test or labral tear was not found in our cohort. Future studies are required to determine the natural history of asymptomatic cam-type morphology and risk of hip derangement.
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Affiliation(s)
- Sulaiman A AlMousa
- Orthopaedic Surgery Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Tarek Hegazi
- Department of Radiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hashem A AlKhamis
- Department of Orthopaedic Surgery, Asir Central Hospital, Abha, Saudi Arabia
| | - Ziyad A AlTayyar
- Department of Family Medicine and Community Health, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mutlaq D AlMutairi
- Department of Orthopaedic Surgery, King Fahd Military Medical Complex, Dhahran, Eastern Province, Saudi Arabia
| | - Salim A AlGhamdi
- Orthopaedic Surgery Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mona I Almuhaish
- Department of Radiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammed M Alzaid
- Department of Radiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Shayma S Alsubaie
- Orthopaedic Surgery Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammad M Alzahrani
- Orthopaedic Surgery Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Thirumaran AJ, Murphy NJ, Fu K, Hunter DJ. Femoroacetabular impingement - What the rheumatologist needs to know. Best Pract Res Clin Rheumatol 2024; 38:101932. [PMID: 38336510 DOI: 10.1016/j.berh.2024.101932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024]
Abstract
Femoroacetabular impingement (FAI) syndrome is a common cause of hip and groin pain in young individuals. FAI syndrome is a triad of signs, symptoms, and imaging findings. Necessary but not sufficient for the diagnosis of FAI syndrome is the presence of cam and/or pincer morphology of the hip. However, pathological thresholds for cam and pincer morphologies are not well-established. Management of FAI syndrome is typically through either physiotherapist-led therapy or surgical intervention. Physiotherapist-led management involves exercises aimed to optimise movement patterns of the hip and pelvis to prevent impingement from occurring, activity modification and analgesia, whereas surgical management involves arthroscopic resection of the cam/pincer morphology and treatment of concomitant soft tissue pathologies such as labral tears, cartilage lesions or ligamentum teres tears. Careful consideration of intervention is required given that FAI syndrome may predispose those affected to developing future osteoarthritis of the hip. In most clinical trials, hip arthroscopy has been found to provide greater improvement in patient-reported outcomes in the short-term compared to physiotherapy, however it is unknown whether this is sustained in the long-term or affects the future development of hip osteoarthritis.
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Affiliation(s)
- Aricia Jieqi Thirumaran
- Nepean Hospital, Kingswood, NSW, 2747, Australia; Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney, St Leonards, NSW, 2065, Australia
| | - Nicholas J Murphy
- Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney, St Leonards, NSW, 2065, Australia; University of Newcastle and Department of Orthopaedic Surgery, John Hunter Hospital, New Lambton, NSW, 2305, Australia
| | - Kai Fu
- Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney, St Leonards, NSW, 2065, Australia; Department of Rheumatology, Royal North Shore Hospital, St Leonards, NSW, 2065, Australia; Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - David J Hunter
- Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney, St Leonards, NSW, 2065, Australia; Department of Rheumatology, Royal North Shore Hospital, St Leonards, NSW, 2065, Australia.
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Pasculli RM, Callahan EA, Wu J, Edralin N, Berrigan WA. Non-operative Management and Outcomes of Femoroacetabular Impingement Syndrome. Curr Rev Musculoskelet Med 2023; 16:501-513. [PMID: 37650998 PMCID: PMC10587039 DOI: 10.1007/s12178-023-09863-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/07/2023] [Indexed: 09/01/2023]
Abstract
PURPOSE To serve as a guide for non-operative physicians in the management of femoroacetabular impingement syndrome and provide an algorithm as to when to refer patients for potential surgical management. RECENT FINDINGS Supervised physical therapy programs that focus on active strengthening and core strengthening are more effective than unsupervised, passive, and non-core-focused programs. There is promising evidence for the use of intra-articular hyaluronic acid and PRP as adjunct treatment options. Recent systematic reviews and meta-analyses have found that in young active patients, hip arthroscopy demonstrates improved short-term outcomes over physical therapy. The decision for the management of FAIS is complex and should be specific to each patient. Consideration of the patient's age, timing to return to sport, longevity of treatment, hip morphology, and degree of cartilage degeneration is required to make an informed decision in the treatment of these patients.
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Affiliation(s)
- Rosa M. Pasculli
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA USA
| | - Elizabeth A. Callahan
- Department of Physical Medicine and Rehabilitation, New York University, New York, NY USA
| | - James Wu
- University of California Berkeley, Berkeley, CA USA
| | - Niam Edralin
- University of California Berkeley, Berkeley, CA USA
| | - William A. Berrigan
- Department of Orthopaedics, University of California San Francisco, 1500 Owens Street, San Francisco, CA 94158 USA
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Yang JZ, Chen P, Chen BH, Zhao B. Subchondral fatigue fracture of the femoral head in young military recruits: Potential risk factors. World J Clin Cases 2023; 11:6733-6743. [PMID: 37901035 PMCID: PMC10600862 DOI: 10.12998/wjcc.v11.i28.6733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/20/2023] [Accepted: 09/11/2023] [Indexed: 09/25/2023] Open
Abstract
BACKGROUND Subchondral fatigue fracture of the femoral head (SFFFH) mainly occurs in young military recruits and might be confused with osteonecrosis of the femoral head. However, less research focuses on the risk factor for SFFFH. AIM To evaluate the intrinsic risk factors for SFFFH in young military recruits. METHODS X-ray and magnetic resonance imaging data were used for analysis. Acetabular anteversion of the superior acetabulum, acetabular anteversion of the center of the acetabulum (AVcen), anterior acetabular sector angle (AASA), posterior acetabular sector angle, superior acetabular sector angle, neck-shaft angle (NSA), inferior iliac angle (IIA), and ischiopubic angle were calculated. Then, logistic regression, receiver operating characteristic curve analysis, and independent samples t-test were performed to identify the risk factors for SFFFH. RESULTS Based on the results of logistic regression, age [odds ratio (OR): 1.33; 95% confidence interval (95%CI): 1.12-1.65; P = 0.0031] and treatment timing (OR: 0.86; 95%CI: 0.75-0.96; P = 0.015) could be considered as the indicators for SFFFH. AVcen (P = 0.0334), AASA (P = 0.0002), NSA (P = 0.0007), and IIA (P = 0.0316) were considered to have statistical significance. Further, AVcen (OR: 1.41; 95%CI: 1.04-1.95) and AASA (OR: 1.44; 95%CI: 1.21-1.77), especially AASA (area under curve: 66.6%), should be paid much more attention due to the higher OR than other indicators. CONCLUSION We have for the first time unveiled that AASA and age could be key risk factors for SFFFH, which further verifies that deficient anterior coverage of the acetabulum might be the main cause of SFFFH.
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Affiliation(s)
- Jun-Zheng Yang
- The Fifth Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
| | - Peng Chen
- Department of Orthopaedics, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
| | - Bai-Hao Chen
- First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
| | - Bin Zhao
- Department of Sports Medicine, the Fourth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
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Enseki KR, Bloom NJ, Harris-Hayes M, Cibulka MT, Disantis A, Di Stasi S, Malloy P, Clohisy JC, Martin RL. Hip Pain and Movement Dysfunction Associated With Nonarthritic Hip Joint Pain: A Revision. J Orthop Sports Phys Ther 2023; 53:CPG1-CPG70. [PMID: 37383013 DOI: 10.2519/jospt.2023.0302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
The Academy of Orthopaedic Physical Therapy (AOPT), formerly the Orthopaedic Section of the American Physical Therapy Association (APTA), has an ongoing effort to create evidence-based practice guidelines for orthopaedic physical therapy management of patients with musculoskeletal impairments described in the World Health Organization's International Classification of Functioning, Disability, and Health (ICF). This is an update to the 2014 Clinical Practice Guideline (CPG) for Hip Pain and Movement Dysfunction Associated with Nonarthritic Hip Joint Pain. The goals of the revision were to provide a concise summary of the contemporary evidence since publication of the original guideline and to develop new recommendations or revise previously published recommendations to support evidence-based practice. This current CPG covers pathoanatomical features, clinical course, prognosis, diagnosis, examination, and physical therapy interventions in the management of nonarthritic hip joint pain. J Orthop Sports Phys Ther 2023;53(7):CPG1-CPG70. doi:10.2519/jospt.2023.0302.
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Cheng H, Zhang Z, Sun W, Ren N, Luo D, Li Y, Zhang J, Zhang H. Can we determine anterior hip coverage from pelvic anteroposterior radiographs? A study of patients with hip dysplasia. BMC Musculoskelet Disord 2023; 24:522. [PMID: 37355606 DOI: 10.1186/s12891-023-06624-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/10/2023] [Indexed: 06/26/2023] Open
Abstract
PURPOSE Insufficient coverage causes hip joint instability and results in hip pain. Anterior hip coverage can be determined on both pelvic anteroposterior (AP) radiographs and false profile (FP) radiographs. Four parameters are commonly used to determine the anterior coverage on pelvic AP radiographs: the crossover index, crossover sign, anterior wall index (AWI), and rule of thirds. This study aims to clarify the relationship between these 4 parameters on AP radiographs and the anterior center edge angle (ACEA) on FP radiographs. METHODS In this study, 53 patients who underwent periacetabular osteotomy for hip dysplasia at our center between July 2020 and October 2020 were retrospectively reviewed. Four parameters on AP radiographs and the ACEA on FP radiographs before surgery and 6 months after surgery were measured and compared for each hip. RESULTS Upon examining the 53 hips in this study, there was no correlation between either the crossover index and the ACEA (P = 0.66) or the crossover sign before surgery. The postoperative correlation between the crossover index and the ACEA was weak (r = 0.36, P = 0.007), and that between the crossover sign and the ACEA was moderate (r = 0.41, P = 0.003). There was a weak correlation between the AWI and ACEA both before (r = 0.288, P = 0.036) and after (r = 0.349, P = 0.011) the operation. Evaluation of the anterior coverage by the rule of thirds was also not consistent when determining the anterior coverage with the ACEA. CONCLUSION Anterior coverage on AP radiographs is largely inconsistent with ACEA on FP radiographs, especially before the surgery. It is recommended to take FP radiographs routinely for determining anterior hip coverage.
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Affiliation(s)
- Hui Cheng
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China
| | - Zhendong Zhang
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China
| | - Wei Sun
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China
| | - Ningtao Ren
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China
| | - Dianzhong Luo
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China.
| | - Yong Li
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China
| | - Jianli Zhang
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China
| | - Hong Zhang
- Senior Department of Orthopaedics, the, Fourth Medical Center , PLA General Hospital, Beijing, 100048, China
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Migliorini F, Baroncini A, Eschweiler J, Knobe M, Tingart M, Maffulli N. Return to sport after arthroscopic surgery for femoroacetabular impingement. Surgeon 2023; 21:21-30. [PMID: 34953722 DOI: 10.1016/j.surge.2021.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 11/19/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND Femoroacetabular impingement (FAI) is common among the active and young population. The present study analysed the rate of return to sport, related influencing factors, and the sport activity level according to the Hip Outcome Score - Sport-Specific Subscale (HOS-SSS). METHODS The literature search was performed in December 2020. All clinical trials investigating HOS-SSS and/or return to sport after arthroscopic treatment for FAI were considered for inclusion. The outcomes of interest were to analyse the rate of return to sport and the sport activity level according to the HOS-SSS in patients who underwent arthroscopic osteoplasty for FAI. RESULTS Data from 41 studies (4063 procedures) were retrieved. A total of 88.75% (581 of 655) of patients returned to sports within a mean of 37.4 ± 16.5 months. The HOS-SSS score improved from 45.0 ± 10.6 to 73.1 ± 9.5 (P < 0.0001) at last follow-up. The following baseline characteristics evidenced positive association with post-operative activity level: lighter weight (P = 0.01), younger age (P = 0.001), Tönnis angle grade I (P = 0.009), greater HHS (P = 0.01), NAHS (P < 0.0001) and HOS-ADL (P = 0.01). CONCLUSION Arthroscopic treatment for FAI resulted in excellent results in terms of return to sport. Moreover, lighter weight and younger age, greater HHS, NAHS, HOS-ADL at baseline were positively associated with post-operative sport activity level. LEVEL OF EVIDENCE IV, systematic review.
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Affiliation(s)
- Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany.
| | - Alice Baroncini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany.
| | - Jörg Eschweiler
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany.
| | - Matthias Knobe
- Department of Orthopedics and Trauma Surgery, Lucerne Cantonal Hospital, Lucerne, Switzerland.
| | - Markus Tingart
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany.
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi, (SA), Italy; School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Thornburrow Drive, Stoke on Trent, England, United Kingdom; Queen Mary University of London, Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, 275 Bancroft Road, London E1 4DG, England, United Kingdom.
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11
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Ward T, Hussain MM, Burns A, Pickering M, Neeman T, Perriman D, Smith P. Arthroscopic Femoral and Acetabular Osteoplasties Alter the In Vivo Hip Kinematics of Patients With Femoroacetabular Impingement. Arthrosc Sports Med Rehabil 2022; 4:e1961-e1968. [PMID: 36579041 PMCID: PMC9791873 DOI: 10.1016/j.asmr.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 08/14/2022] [Indexed: 11/07/2022] Open
Abstract
Purpose Three-dimensional (3D)-two-dimensional (2D) fluoroscopic image registration was used to measure 3D hip kinematics before and after hip arthroscopy in patients with femoroacetabular impingement (FAI). Methods In total, 24 subjects diagnosed with FAI (21 unilateral, 3 bilateral) were prospectively recruited. A clinical impingement test was performed on both hips while the patient was awake and then while anaesthetized, and in the operative hip after arthroscopic osteoplasties and labral repair. Fluoroscopy was used to image the hip during the impingement tests. Images were analyzed using 3D-2D image registration to calculate joint kinematics. The examiner's hand was instrumented with a glove to measure internal rotation torque applied to the hip during each test. Results Internal rotation increased by 3.7° (standard error [SE] 0.95°) after surgery (P = .001). Maximum displacement of the femoral head out of the acetabulum was 4.0 mm (SE 0.5 mm) in the operative group before surgery and 1.8 mm (SE 0.3 mm) after surgery (P < .001). This was due to a decrease in lateral displacement by 1.3 mm (SE 0.4 mm, P = .002) and proximal displacement by 0.8 mm (SE 0.3 mm, P = .013). Internal rotation torque was greater in the operative hips when anaesthetized compared with when awake, by 5 Nm (SE 1.2 Nm, P < .001), and greater in the contralateral hips than the operative hips when awake by 8.4 Nm (SE 1.4 mm, P < .001). Conclusions Arthroscopic osteoplasty and labral repair increased hip range of motion and reduced femoral head displacement from the acetabulum during the IR90 provocation test (i.e., hip flexion to 90°, maximum internal rotation) in patients with FAI. This suggests that the impinging acetabular rim acted as a fulcrum before surgery and may have caused edge loading that was reduced after surgery. Level of Evidence Level IV case series, therapeutic study.
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Affiliation(s)
- Thomas Ward
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia,Address correspondence to Thomas Ward, M.B.B.S. (Hons), D.Phil (Oxon), Trauma and Orthopaedic Research Unit, Building 6 Level 1, Canberra Hospital, PO Box 11, Woden, ACT 2606, Australia.
| | - Mafruha Mowrin Hussain
- University of New South Wales at The Australian Defence Force Academy, Canberra, Australia
| | - Al Burns
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia
| | - Mark Pickering
- University of New South Wales at The Australian Defence Force Academy, Canberra, Australia
| | - Teresa Neeman
- The Australian National University, Canberra, Australia
| | - Diana Perriman
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia
| | - Paul Smith
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia,The Australian National University, Canberra, Australia
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12
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Ayeni OR. Prospective evaluation of sport activity and the development of femoroacetabular impingement in the adolescent hip (PREVIEW): results of the pilot study. Pilot Feasibility Stud 2022; 8:201. [PMID: 36076280 PMCID: PMC9452871 DOI: 10.1186/s40814-022-01164-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 08/25/2022] [Indexed: 11/28/2022] Open
Abstract
Background The purpose of this pilot study was to validate the feasibility of a definitive study aimed at determining if high-intensity physical activity during adolescence impacts the development of femoroacetabular impingement (FAI). Methods This prospective cohort pilot study had a sample size target of 50 volunteers between 12 and 14 years old at sites in Canada, South Korea, and the Netherlands. Participants were evaluated clinically and radiographically at baseline and at 2 years. The participants’ sport and physical activity were evaluated using the Habitual Activity Estimation Scale (HAES) and the American Orthopaedic Society for Sports Medicine (AOSSM) criteria for sport specialization. The primary outcome was feasibility and secondary outcomes included the incidence of radiographic FAI and hip range of motion, function (Hip Outcome Score, HOS), and quality of life (Pediatric Quality of Life questionnaire, PedsQL) at 24 months. Study groups were defined at the completion of follow-up, given the changes in participant activity levels over time. Results Of the 54 participants enrolled, there were 36 (33% female) included in the final analysis. At baseline, those classified as highly active and played at least one organized sport had a higher incidence of asymptomatic radiographic FAI markers (from 6/32, 18.8% at baseline to 19/32, 59.4% at 24 months) compared to those classified as low activity (1/4, 25% maintained at baseline and 24 months). The incidence of radiographic FAI markers was higher among sport specialists (12/19, 63.2%) compared to non-sport specialists (8/17, 47.1%) at 24 months. The HOS and PedsQL scores were slightly higher (better) among those that were highly active and played a sport compared to those who did not at 2 years (mean difference (95% confidence interval): HOS-ADL subscale 4.56 (− 7.57, 16.70); HOS-Sport subscale 5.97 (− 6.91, 18.84); PedsQL Physical Function 7.42 (− 0.79, 15.64); PedsQL Psychosocial Health Summary 6.51 (− 5.75, 18.77)). Conclusion Our pilot study demonstrated some feasibility for a larger scale, definitive cohort study. The preliminary descriptive data suggest that adolescents engaged in higher levels of activity in sports may have a higher risk of developing asymptomatic hip deformities related to FAI but also better quality of life over the 2-year study period. Supplementary Information The online version contains supplementary material available at 10.1186/s40814-022-01164-3.
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Affiliation(s)
- Olufemi R Ayeni
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada. .,McMaster University Medical Centre, 1200 Main St West, 4E15, Hamilton, Ontario, L8N 3Z5, Canada.
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13
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Osteoarthritis Risks and Sports: An Evidence-based Systematic Review. Sports Med Arthrosc Rev 2022; 30:118-140. [PMID: 35921595 DOI: 10.1097/jsa.0000000000000351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Regular sports activities are associated with multiple physical and psychological health benefits. However, sports also may lead to injuries and the development of osteoarthritis (OA). This systematic review investigated the association between sports activity, sports type, and the risk of developing OA. METHODS A systematic review was performed by assessing studies that have investigated the risk of OA development in sports. Data extracted included general information, study design, number of participants, related body mass index, sports type, and assessment of OA. The methodological quality of the studies was assessed using the Newcastle-Ottawa Scale. RESULTS A total of 63 studies were included in this systematic review. The overall Newcastle-Ottawa Scale score was 6.46±1.44 demonstrating a good methodological quality of the articles included in the present study. A total of 628,036 participants were included, with a mean follow-up of 8.0±8.4 years. The mean age of the included athletes was 45.6±15.8, with a mean body mass index of 24.9±2.3 kg/m 2 . CONCLUSION Football and soccer players seem to be at higher risk for the development of OA, although the injury status of the joint should be considered when assessing the risk of OA. High equipment weight and increased injury risk also put military personnel at a higher risk of OA, although elite dancing leads to more hip labral tears. Femoroacetabular impingement was also often diagnosed in ice-hockey players and ballet dancers.
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14
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Honda H, Kobayashi N, Kamono E, Yukizawa Y, Higashihira S, Takagawa S, Choe H, Ike H, Tezuka T, Inaba Y. Effect of 3-Dimensional Versus Single-Plane Changes in Pelvic Dynamics on Range of Motion in Hips With Femoroacetabular Impingement: A Computer Simulation Analysis. Orthop J Sports Med 2022; 10:23259671221123604. [PMID: 36186710 PMCID: PMC9523872 DOI: 10.1177/23259671221123604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/06/2022] [Indexed: 11/17/2022] Open
Abstract
Background Femoroacetabular impingement (FAI) is primarily caused by bony impingement between the acetabulum and femoral neck during hip motion. Increasing posterior pelvic tilt improves hip range of motion in patients with FAI. Purpose To use computer simulation analysis to compare the effects of 3-dimensional (3D) changes in pelvic tilt (sagittal tilt [St], axial rotation, and coronal tilt) with changes in a single plane (St), with the aim of improving range of motion in patients with FAI. Study Design Controlled laboratory study. Methods We evaluated 43 patients with FAI treated by arthroscopic cam resection. A 3D simulation was used to construct the following pelvic models: a 5° and 10° increase posteriorly in St (St5° and St10°) and a combined 5° change in St, axial rotation, and coronal tilt (Complex5°) from the baseline of the anterior pelvic plane. Improvements in maximum internal rotation (MIR) at 45°, 70°, and 90° of hip flexion and improvements in maximum flexion with no internal rotation were compared among the St5°, St10°, and Complex5° models. The pelvic models of each single-plane change of 5° and 10° were evaluated in the same simulation. Results At 90° and 70°, there was a significant difference between the Complex5° and St10° models with respect to improvement in MIR (P = .004 at 90° of flexion; P = .017 at 70° of flexion). There was no significant difference in MIR at 45° of flexion (P = .71) or in maximum flexion (P = .42). Conclusion At 70° and 90° of hip flexion, a combined change in 3D pelvic alignment of 5° (ie, St, axial rotation, and coronal tilt) was more effective in improving hip MIR than a 10° change in St only. Clinical Relevance Effective physical therapy for FAI should address pelvic motion in all 3 planes rather than in a single plane.
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Affiliation(s)
- Hideki Honda
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Naomi Kobayashi
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Emi Kamono
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Yohei Yukizawa
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Shota Higashihira
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Shu Takagawa
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Hyonmin Choe
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Hiroyuki Ike
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Taro Tezuka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
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15
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Schwabe MT, Clohisy JC, A Graesser E, Pascual-Garrido C, Nepple JJ. External Validation of the FEAR Index in Borderline Acetabular Dysplasia. Orthop J Sports Med 2022; 10:23259671221113837. [PMID: 35990876 PMCID: PMC9382071 DOI: 10.1177/23259671221113837] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 04/20/2022] [Indexed: 11/17/2022] Open
Abstract
Background Given the lack of established, externally validated criteria for the diagnosis of unstable hips, the Femoro-Epiphyseal Acetabular Roof (FEAR) index has been proposed as a useful tool for identifying hips with instability in the setting of borderline acetabular dysplasia. Purposes To (1) determine the external performance of the FEAR index in identifying hips with a clinical diagnosis of instability in the setting of borderline dysplasia and (2) assess the performance of the FEAR index compared with acetabular inclination or physeal scar angle alone. Study Design Cohort study (diagnosis); Level of evidence, 3. Methods The authors reviewed 176 patients with borderline acetabular dysplasia (lateral center-edge angle, 20°-25°). A positive FEAR index was defined as ≥5°. An alternative threshold ≥2° was also assessed. Significant instability was determined by the senior surgeon based on the combination of patient and radiographic features; unstable hips were treated with periacetabular osteotomy (with or without hip arthroscopy), and stable hips were treated with isolated hip arthroscopy. Results Only 18% of borderline hips had a positive FEAR index. The ≥5° positive FEAR index threshold had a sensitivity of 33% (23/70) and specificity of 92% (98/106) in predicting the clinical diagnosis of instability. The ≥2° FEAR index threshold had a sensitivity of 39% (27/70) and specificity of 89% (94/106) in predicting the clinical diagnosis of instability. No alternative threshold for the FEAR index resulted in high levels of sensitivity and specificity. A threshold of -5° was required to reach an adequate sensitivity of 74%. The FEAR index remained a significant predictor of hip instability even after controlling for acetabular inclination (odds ratio, 1.12; P < .001) or physeal scar angle (odds ratio, 1.6; P < .001). Conclusion In the current study, a positive FEAR index was generally indicative of the presence of clinical instability, but the FEAR index alone remained inadequate to fully define the instability of a given hip, as it demonstrated low sensitivity (only 33%) in the external validation. The FEAR index is best used in the context of other clinical and radiographic features.
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Affiliation(s)
- Maria T Schwabe
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - John C Clohisy
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Elizabeth A Graesser
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Cecilia Pascual-Garrido
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jeffrey J Nepple
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
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16
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Uquillas CA, Sun Y, Van Sice W, ElAttrache NS, Banffy MB. Prevalence of femoroacetabular impingement in elite baseball players. J Hip Preserv Surg 2022; 9:145-150. [PMID: 35992028 PMCID: PMC9389915 DOI: 10.1093/jhps/hnac034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 06/06/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
ABSTRACT
CAM-type femoroacetabular impingement continues to be an underrecognized cause of hip pain in elite athletes. Properties inherent to baseball such as throwing mechanics and hitting may enhance the risk of developing a cam deformity. Our goal is to gain an appreciation of the radiographic prevalence of cam deformities in elite baseball players. Prospective evaluation and radiographs of 80 elite baseball players were obtained during the 2016 preseason entrance examination. A sports medicine fellowship-trained orthopedic surgeon with experience treating hip disorders used standard radiographic measurements to assess for the radiographic presence of cam impingement. Radiographs with an alpha angle >55° on modified Dunn views were defined as cam positive. Of the 122 elite baseball players included in our analysis, 80 completed radiographic evaluation. Only 7.3% (9/122) of players reported hip pain and 1.6% (4/244) had a positive anterior impingement test. The prevalence of cam deformities in right and left hips were 54/80 (67.5%) and 40/80 (50.0%), respectively. The mean alpha angle for cam-positive right and left hips were 64.7 ± 6.9° and 64.9 ± 5.8°, respectively. Outfielders had the highest risk of right-sided cam morphology (Relative Risk (RR) = 1.6). Right hip cam deformities were significantly higher in right-handed pitchers compared with left-handed pitchers (P = 0.02); however, there was no significant difference in left hip cam deformities between left- and right-handed pitchers (P = 0.307). Our data suggest that elite baseball players have a significantly higher prevalence of radiographic cam impingement than the general population.
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Affiliation(s)
- Carlos A Uquillas
- Kerlan Jobe Orthopedic Clinic , 6801 Park Terrace, Suite 500, Los Angeles, CA 90045, USA
| | - Yuhang Sun
- Kerlan Jobe Orthopedic Clinic , 6801 Park Terrace, Suite 500, Los Angeles, CA 90045, USA
| | - Wade Van Sice
- Kerlan Jobe Orthopedic Clinic, 2055 Military Trail #204 , Jupiter, FL 33458, USA
| | - Neal S ElAttrache
- Kerlan Jobe Orthopedic Clinic , 6801 Park Terrace, Suite 500, Los Angeles, CA 90045, USA
| | - Michael B Banffy
- Kerlan Jobe Orthopedic Clinic , 6801 Park Terrace, Suite 500, Los Angeles, CA 90045, USA
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17
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Sun H, Huang HJ, Mamtimin M, Yang F, Duan YP, Zhang X, Wang JQ. Hip Gluteus Medius Tears Are Associated With Lower Femoral Neck-Shaft Angles and Higher Acetabular Center-Edge Angles. Arthroscopy 2022; 38:1496-1505. [PMID: 34678409 DOI: 10.1016/j.arthro.2021.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 08/23/2021] [Accepted: 10/08/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE 1) To assess the possible relationship between the morphology of femur or acetabulum and the gluteus medius pathology. 2) To analyze the outcome of isolated arthroscopic treatment of femoroacetabular impingement (FAI) for patients with radiographic gluteus medius tear. METHODS We performed a retrospective study of FAI patients who underwent arthroscopy between January 2016 to December 2019. Demographic data, such as sex, age, body mass index (BMI), symptom duration, were collected. Radiographic parameters, including alpha angle, lateral center-edge angle (LCEa), femur neck-shaft angle (NSa), gluteus medius pathology, were also collected. Exclusion criteria were previous hip conditions, such as osteoarthritis (Tönnis grade > 1), rheumatoid arthritis, ankylosing spondylitis, snapping hip, previous surgery on the ipsilateral hip, or incomplete data. We followed up these patients with radiographic gluteus medius tear. No surgical procedure for gluteus medius was performed. The minimum follow-up period was 13 months. Patient-reported outcomes, such as modified Harris Hip score (mHHS), visual analog scale (VAS), and patient acceptable symptom state (PASS), as well as physical examination data, including tenderness at the greater trochanter, abductor weakness, limping gait, and positive Trendelenburg sign or test, were gathered preoperatively and postoperatively. RESULTS A total of 569 hips (314, 55.2% male) were collected eventually, with a mean age of 36.5 ± 10.4 years (range: 13.0 to ∼65.0). Gluteus medius pathology was found in 209 (36.7%) hips, including 41 (7.2%) partial-thickness tears and 10 (1.8%) complete tears. The NSa of the normal, tendinosis, partial tear, and complete tear groups was 133.8 ± 4.7°, 130.6 ± 3.8°, 129.4 ± 3.9°, and 129.6 ± 3.4°, respectively (P < .001). The LCEa of each group was 31.7 ± 35.7°, 33.3 ± 6.5°, 34.9 ± 6.8°, and 33.7 ± 8.1°, respectively (P = .004). On multivariable logistic regression analysis, lower NSa and higher LCEa were identified as risk factors for developing gluteus medius pathology (P < .001). For patients with gluteus medius tear, two cases were lost to follow-up and two cases had incomplete data. The mean follow-up period of the remaining 47 hips was 29.5 ± 12.9 (range: 13 to 59) months. The mHHS improved from 54.8 ± 19.1 to 90.1 ± 6.7 points (P < .001), and VAS decreased from 6.8 ± 1.6 to 3.0 ± 1.6 points (P < .001). Forty-two cases met the threshold of PASS, with a rate of 89%. The abductor strength increased from 4.1 ± 1.00 to 4.6 ± .7 grades (P = .002). However, for patients with a completely torn gluteus medius, improvement of abductor strength was not significant statistically (3.4 ± .9 to 3.9 ± .9, P = .234). CONCLUSION There was a correlation between lower NSa/higher LCEa and gluteus medius pathology. Isolated arthroscopic treatment of FAI for patients with radiographic gluteus medius tear can gain satisfactory patient-reported outcomes. LEVEL OF EVIDENCE Therapeutic case series, IV.
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Affiliation(s)
- Hao Sun
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University and Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Hong-Jie Huang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University and Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Mahmut Mamtimin
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University and Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Fan Yang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University and Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Yu-Peng Duan
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University and Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Xin Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University and Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Jian-Quan Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University and Beijing Key Laboratory of Sports Injuries, Beijing, China.
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18
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Freiman SM, Schwabe MT, Fowler L, Clohisy JC, Nepple JJ. Prevalence of Borderline Acetabular Dysplasia in Symptomatic and Asymptomatic Populations: A Systematic Review and Meta-analysis. Orthop J Sports Med 2022; 10:23259671211040455. [PMID: 35155698 PMCID: PMC8832597 DOI: 10.1177/23259671211040455] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/13/2021] [Indexed: 11/30/2022] Open
Abstract
Background: Patients with borderline acetabular dysplasia are a controversial patient population in hip preservation, as some have primarily impingement-based symptoms and others have instability-based symptoms. Borderline dysplasia is most commonly defined as a lateral center-edge angle (LCEA) of 20° to 25°. However, its prevalence has not been well established in the literature. Purpose: To (1) define the prevalence of borderline hip dysplasia in the general population as well as in populations presenting with hip pain using a systematic review and meta-analysis of the literature and (2) describe differences between male and female patients as well as differences in prevalence from that of classic acetabular dysplasia. Study Design: Systematic review; Level of evidence, 3. Methods: A systematic review of the literature was performed using search terms to capture borderline dysplasia, or studies reporting prevalence by LCEA. The search yielded 1932 results, of which 11 articles met inclusion criteria and were included in the final systematic review. Studies were grouped by patient cohort as (1) asymptomatic general population, (2) asymptomatic targeted population (eg, athletes in a specific sport), and (3) symptomatic hip pain population. The reporting of prevalence rates by subject or by hip was recorded. In a study, the rates of borderline dysplasia were compared with those of classic acetabular dysplasia (LCEA, <20°). Results: The 11 studies included 19,648 hips (11,754 patients). In the asymptomatic general population, the pooled estimate of the prevalence of borderline dysplasia was 19.8% by subject and 23.3% by hip (range, 16.7%-46.0%). The targeted subpopulation group included 236 athletes with subgroups in ballet, football, hockey, volleyball, soccer, and track and field with prevalence ranging from 17.8% to 51.1%. The prevalence of borderline dysplasia in groups presenting with hip pain was 12.8% (range, 12.6%-16.0%). Borderline acetabular dysplasia was 3.5 times more common than classic acetabular dysplasia in the asymptomatic general population. Conclusion: This study demonstrated a prevalence of borderline dysplasia of 19.8% to 23.3% in the asymptomatic general population. Additionally, an estimated prevalence of 12.8% of hips in symptomatic patients highlights the common decision-making challenges in this population.
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Affiliation(s)
- Serena M. Freiman
- Department of Orthopaedic Surgery, Washington University, St Louis, Missouri, USA
| | - Maria T. Schwabe
- Department of Orthopaedic Surgery, Washington University, St Louis, Missouri, USA
| | - Lucas Fowler
- Department of Orthopaedic Surgery, Washington University, St Louis, Missouri, USA
| | - John C. Clohisy
- Department of Orthopaedic Surgery, Washington University, St Louis, Missouri, USA
| | - Jeffrey J. Nepple
- Department of Orthopaedic Surgery, Washington University, St Louis, Missouri, USA
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19
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Bisciotti GN, Auci A, Bona S, Bisciotti A, Bisciotti A, Cassaghi G, DI Marzo F, DI Pietto F, Eirale C, Panascì M, Parra F, Zini R. Long-standing groin pain syndrome in athletic women: a multidisciplinary assessment in keeping with the italian consensus agreement. J Sports Med Phys Fitness 2021; 62:1199-1210. [PMID: 34931789 DOI: 10.23736/s0022-4707.21.13322-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Long-standing groin pain syndrome (LSGPS) is a form of groin pain syndrome in which the cohort of symptoms reported by patients is experienced for a long period, typically for over 12 weeks, and is recalcitrant to any conservative therapy. The aim of this prospective epidemiological study was to describe the clinical causes of LSGPS in 37 female athletic subjects in Italy through the Groin Pain Syndrome Italian Consensus Conference on terminology, clinical evaluation and imaging assessment in groin pain in athletes classification and guidelines. METHODS Thirty-seven female athletes affected by LSGPS were evaluated following the guidelines issued by the Groin Pain Syndrome Italian Consensus Conference on terminology, clinical evaluation and imaging assessment of groin pain in athletes. RESULTS In the considered population, each patient presented only one pathological cause for LSGPS. The most frequent aetiologies were inguinal pathologies (54.05% of the cases), acetabular labrum tear (18.92%) and pelvic floor disorders (8.11%). Adductor tendinopathy represented only 2.70% of cases. CONCLUSIONS Female athletic patients affected by LSGPS show a similar incidence of inguinal and hip pathologies as in male populations. However, these clinical situations do not seem to be associated in women unlike in the male population. This difference is probably due to particular anatomical differences related to gender. For this reason, women affected by LSGPS represent an important subset of patients. Moreover, adductor tendinopathy is probably overrated as an etiopathogenetic source of LSGPS in women.
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Affiliation(s)
- Gian Nicola Bisciotti
- Paris Saint Germain FC, Paris, France - .,Kinemove Rehabilitations Center, Pontremoli, Massa Carrara, Italy -
| | - Alessio Auci
- Azienda USL Toscana Nord-Ovest, Massa Carrara, Italy
| | - Stefano Bona
- Humanitas Resarch Institute, Rozzano, Milan, Italy
| | | | - Andrea Bisciotti
- Kinemove Rehabilitations Center, Pontremoli, Massa Carrara, Italy
| | | | | | | | | | | | - Federica Parra
- Kinemove Rehabilitations Center, Pontremoli, Massa Carrara, Italy
| | - Raul Zini
- Università degli Studi di Ferrara, Ferrara, Italy.,Maria Cecilia Hospital, Cotignola, Ravenna, Italy
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Kaplan DJ, Matache BA, Fried J, Burke C, Samim M, Youm T. Improved Functional Outcome Scores Associated with Greater Reduction in Cam Height Using the Femoroacetabular Impingement Resection Arc During Hip Arthroscopy. Arthroscopy 2021; 37:3455-3465. [PMID: 34052374 DOI: 10.1016/j.arthro.2021.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 05/08/2021] [Accepted: 05/14/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE We sought to evaluate the association between postoperative cam lesion measured by the femoroacetabular impingement resection (FAIR) arc and show 2-year patient outcomes following hip arthroscopy. METHODS A retrospective review of prospectively gathered data from 2013-2017 was performed. All patients who underwent hip arthroscopy for femoroacetabular impingement resection (FAI) with ≥2-year follow-up were included. Cam FAIR arc measurements were made preoperatively and postoperatively on a 45° Dunn view radiograph. The clinical effect of postoperative cam maximal radial distance (MRD) was assessed using the modified Harris Hip Score (mHHS) and Non-Arthritic Hip Score (NAHS). Patients were divided into subgroups based on relationship to the mean and standard deviations for cam MRD. One half standard deviation above the mean was found to be 3.15 mm. RESULTS Sixty-one hips in 59 consecutive patients (age 38.1 ± 13.1; body mass index [BMI]: 25.5 ± 4.3; 36 females) were included. Mean preoperative and postoperative cam maximal radial distances (MRD) were 4.5 ± 1.7 mm and 2.3 ± 1.7 mm (P < .001), respectively. The interclass correlation coefficient was excellent (>.9) for all measurements. There were no differences in age, sex, BMI or preoperative mHHS/NAHS between <3.15 mm and >3.15 mm cam MRD groups (P > .05). Using linear regression, cam MRD was found to be significantly associated with 2-year outcomes for both mHHS (R2 = .21, P < .001) and NAHS (R2 = .004). Subgroup analysis demonstrated that patients in the cam MRD < 3.15 mm group had significantly higher mHHS (89.7 vs 70.0, P < .001) and NAHS scores (90.5 vs 72.9, P < .001) than those in the >3.15 mm group. Additionally, more patients in the <3.15 mm group reached the minimal clinically important difference (95.2% vs 78.9%, P = .048) and were above patient acceptable symptomatic state (95.2% vs 52.6%, P < .001) compared to the >3.15 mm group. CONCLUSION Patients with a lower postoperative cam MRD relative to the FAIR arc demonstrated significantly improved outcomes as compared to those with higher postoperative MRD at two-year follow-up. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Daniel J Kaplan
- New York Langone Medical University, Department of Orthopaedic Surgery, New York, New York, U.S.A..
| | - Bogdan A Matache
- New York Langone Medical University, Department of Orthopaedic Surgery, New York, New York, U.S.A
| | - Jordan Fried
- New York Langone Medical University, Department of Orthopaedic Surgery, New York, New York, U.S.A
| | - Christopher Burke
- Department of Radiology, New York Langone Medical University, New York, New York, U.S.A
| | - Mohammad Samim
- Department of Radiology, New York Langone Medical University, New York, New York, U.S.A
| | - Thomas Youm
- New York Langone Medical University, Department of Orthopaedic Surgery, New York, New York, U.S.A
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21
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Scanaliato JP, Wells ME, Dunn JC, Garcia EJ. Overview of Sport-Specific Injuries. Sports Med Arthrosc Rev 2021; 29:185-190. [PMID: 34730116 DOI: 10.1097/jsa.0000000000000312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Athletes are at risk for a variety of injuries not typically sustained in everyday life. The team physician must be capable of not only identifying and treating injuries as they occur, but he or she must be armed with the knowledge to minimize the risk of injuries before they occur. This review serves to provide an overview of the various sport-specific injuries typically encountered by team physicians. Injuries are grouped by body part and/or organ system, when possible. We do not aim to cover in detail the various treatments for these injuries; rather, we hope that this article provides a comprehensive overview of sport-specific injury, and demonstrate the well-roundedness in skills that must be possessed by team physicians.
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Hip Arthroscopy Volume and Reoperations in a Large Cross-Sectional Population: High Rate of Subsequent Revision Hip Arthroscopy in Young Patients and Total Hip Arthroplasty in Older Patients. Arthroscopy 2021; 37:3445-3454.e1. [PMID: 33901509 DOI: 10.1016/j.arthro.2021.04.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/03/2021] [Accepted: 04/15/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To report contemporary trends in hip arthroscopy case volume in the United States using a large cross-sectional cohort with accurate laterality tracking for assessment of revision surgery and rates of conversion to total hip arthroplasty (THA). METHODS Using Current Procedural Terminology codes, we queried the Mariner PearlDiver dataset for patients who underwent hip arthroscopy from 2010 to 2017. Patient demographics were recorded and subsequent hip arthroscopy procedures and THA conversion within 2 years after surgery were tracked using International Classification of Diseases, Tenth Revision codes to accurately identify laterality. Emergency department and hospital admission within 30 days after surgery were queried. RESULTS Of the 53,103 patients undergoing hip arthroscopy procedures, hip arthroscopy case volume increased 2-fold from 2010 to 2014 but remained relatively unchanged from 2014 to 2017. The most common age group undergoing surgery was 40 to 49 years, and female patients represented 70% of cases. Two-year subsequent surgery rate was 19%, with 15.1% undergoing a revision arthroscopy and 3.9% converting to THA. The most common revision arthroscopy procedures were femoroplasty (9.5%), labral repair (8.5%), and acetabuloplasty (4.3%). Younger patients were more likely to undergo revision arthroscopy (18% age 10-19 years; 15% age 20-29 years). Older patients had a significant risk for conversion to THA within 2 years (36% age 60-69 years; 28% age 50-59 years). Female patients also demonstrated a slightly greater rate of conversion to THA (4.1% female, 3.5% male, P <.0001). Patients 20 to 29 years had the greatest risk of emergency department admission (5.4%) and hospital admission (0.8%) within 30 days of surgery. CONCLUSIONS The rise in hip arthroscopy procedures may be starting to plateau in the United States. Cross-sectional data also indicate that there is a greater than previously reported rate of revision hip arthroscopy in patients younger than 30 years of age and conversion to THA in patients older than 50 years of age. LEVEL OF EVIDENCE III, cross-sectional study.
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Westermann RW, Scott EJ, Schaver AL, Schneider A, Glass NA, Levy SM, Willey MC. Activity Level and Sport Type in Adolescents Correlate with the Development of Cam Morphology. JB JS Open Access 2021; 6:JBJSOA-D-21-00059. [PMID: 34841184 PMCID: PMC8613345 DOI: 10.2106/jbjs.oa.21.00059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The purpose of this study was to evaluate the influence of the volume and type of sport on the development of cam-type femoroacetabular impingement and acetabular dysplasia.
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Affiliation(s)
- Robert W Westermann
- Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Elizabeth J Scott
- Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Andrew L Schaver
- Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Anthony Schneider
- Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Natalie A Glass
- Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Steven M Levy
- Department of Preventive and Community Dentistry, College of Dentistry, University of Iowa, Iowa City, Iowa.,Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa
| | - Michael C Willey
- Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa
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Trends in Utilization of Image Guidance for Hip Joint Injections. Clin J Sport Med 2021; 31:374-378. [PMID: 32032166 DOI: 10.1097/jsm.0000000000000781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/11/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study aims to evaluate trends in utilization of image guidance for intraarticular hip injections and to compare the cost efficiency of ultrasound-, fluoroscopic-, and landmark-guided injections in the management of hip osteoarthritis (OA) and femoroacetabular impingement (FAI). DESIGN Retrospective descriptive epidemiology study. SETTING The information was collected from Humana private payer insurance claims database encompassing all practice settings. PATIENTS OR PARTICIPANTS A total of 302 855 patients for years 2007 to 2015. INTERVENTIONS OR ASSESSMENT OF RISK FACTORS OR INDEPENDENT VARIABLES Primary diagnosis of hip OA or FAI. MAIN OUTCOME MEASURES Injection type [corticosteroid (CS) or hyaluronic acid (HA)], imaging modality (landmark, ultrasound, or fluoroscopic guidance), and costs. RESULTS Landmark-guided CS and HA injections for the management of hip OA decreased, whereas fluoroscopic and ultrasound guidance increased. Similar trends were demonstrated in the management of FAI using CS. In the management of FAI using HA, landmark- and ultrasound-guided injections decreased and fluoroscopic-guided injections increased. Cost analysis revealed lower reimbursement of landmark and ultrasound guidance compared with fluoroscopic guidance. CONCLUSIONS During the study period, there was an increase in the use of image guidance and decline in landmark guidance for the treatment of OA and FAI using CS and HA. Fluoroscopic guidance demonstrated increased reimbursement compared with landmark and fluoroscopic guidance. There is an opportunity to mitigate cost and reduce radiation exposure by using ultrasound-guided injections rather than fluoroscopic guidance.
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Nonsurgical Versus Surgical Management of Femoroacetabular Impingement: What Does the Current Best Evidence Tell Us. J Am Acad Orthop Surg 2021; 29:e471-e478. [PMID: 33351525 DOI: 10.5435/jaaos-d-20-00571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 11/15/2020] [Indexed: 02/01/2023] Open
Abstract
Controversy exists as to the management of femoroacetabular impingement (FAI). When nonsurgical management of symptomatic FAI fails, surgical management is generally indicated. However, many groups with a stake in patient care (particularly payors) have insisted on higher levels of evidence. Recently, there have been several Level I studies published, comparing physical therapy (PT) with hip arthroscopy in the management of symptomatic FAI. All of these studies have used outcomes tools developed and validated for patients with nonarthritic hip pain (the International Hip Outcome Tool). Most highest level evidence confirms that although patients with FAI do benefit from PT, patients who undergo surgical management for FAI with hip arthroscopy benefit more than those who undergo PT (mean difference in the International Hip Outcome Tool 6.8 [minimal clinically important difference 6.1], P = 0.0093). Future large prospective studies are needed to evaluate the effect on the outcomes when there is a delay in surgical management in symptomatic individuals, assess whether FAI surgery prevents or delays osteoarthritis, and determine the role of other advanced surgical techniques.
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Hanke MS, Schmaranzer F, Steppacher SD, Reichenbach S, Werlen SF, Siebenrock KA. A Cam Morphology Develops in the Early Phase of the Final Growth Spurt in Adolescent Ice Hockey Players: Results of a Prospective MRI-based Study. Clin Orthop Relat Res 2021; 479:906-918. [PMID: 33417423 PMCID: PMC8052031 DOI: 10.1097/corr.0000000000001603] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/18/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND Cam morphologies seem to develop with an increased prevalence in adolescent boys performing high-impact sports. The crucial question is at what age the cam morphology actually develops and whether there is an association with an aberration of the shape of the growth plate at the cam morphology site. QUESTIONS/PURPOSES (1) What is the frequency of cam morphologies in adolescent ice hockey players, and when do they appear? (2) Is there an association between an extension of the physeal growth plate and the development of a cam morphology? (3) How often do these players demonstrate clinical findings like pain and lack of internal rotation? METHODS A prospective, longitudinal MRI study was done to monitor the proximal femoral development and to define the appearance of cam morphologies in adolescent ice hockey players during the final growth spurt. Young ice hockey players from the local boys' league up to the age of 13 years (mean age 12 ± 0.5 years) were invited to participate. From 35 players performing on the highest national level, 25 boys and their parents consented to participate. None of these 25 players had to be excluded for known disease or previous surgery or hip trauma. At baseline examination as well as 1.5 and 3 years later, we performed a prospective noncontrast MRI scan and a clinical examination. The three-dimensional morphology of the proximal femur was assessed by one of the authors using radial images of the hip in a clockwise manner. The two validated parameters were: (1) the alpha angle for head asphericity (abnormal > 60°) and (2) the epiphyseal extension for detecting an abnormality in the shape of the capital physis and a potential correlation at the site of the cam morphology. The clinical examination was performed by one of the authors evaluating (1) internal rotation in 90° of hip and knee flexion and (2) hip pain during the anterior impingement test. RESULTS Cam morphologies were most apparent at the 1.5-year follow-up interval (10 of 25; baseline versus 1.5-year follow-up: p = 0.007) and a few more occurred between 1.5 and 3 years (12 of 23; 1.5-year versus 3-year follow-up: p = 0.14). At 3-year follow-up, there was a positive correlation between increased epiphyseal extension and a high alpha angle at the anterosuperior quadrant (1 o'clock to 3 o'clock) (Spearman correlation coefficient = 0.341; p < 0.003). The prevalence of pain on the impingement test and/or restricted internal rotation less than 20° increased most between 1.5-year (1 of 25) and the 3-year follow-up (6 of 22; 1.5-year versus 3-year follow-up: p = 0.02). CONCLUSION Our data suggest that a cam morphology develops early during the final growth spurt of the femoral head in adolescent ice hockey players predominantly between 13 to 16 years of age. A correlation between an increased extension of the growth plate and an increased alpha angle at the site of the cam morphology suggests a potential underlying growth disturbance. This should be further followed by high-resolution or biochemical MRI methods. Considering the high number of cam morphologies that correlated with abnormal clinical findings, we propose that adolescents performing high-impact sports should be screened for signs of cam impingement, such as by asking about hip pain and/or examining the patient for limited internal hip rotation. LEVEL OF EVIDENCE Level I, prognostic study.
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Affiliation(s)
- Markus S. Hanke
- M. S. Hanke, S. D. Steppacher, K. A. Siebenrock, Department of Orthopedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- F. Schmaranzer, Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Department of Rheumatology, Immunology and Allergology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- S. F. Werlen, Department of Radiology, Sonnenhof Clinic, Lindenhof Group, Bern, Switzerland
| | - Florian Schmaranzer
- M. S. Hanke, S. D. Steppacher, K. A. Siebenrock, Department of Orthopedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- F. Schmaranzer, Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Department of Rheumatology, Immunology and Allergology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- S. F. Werlen, Department of Radiology, Sonnenhof Clinic, Lindenhof Group, Bern, Switzerland
| | - Simon D. Steppacher
- M. S. Hanke, S. D. Steppacher, K. A. Siebenrock, Department of Orthopedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- F. Schmaranzer, Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Department of Rheumatology, Immunology and Allergology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- S. F. Werlen, Department of Radiology, Sonnenhof Clinic, Lindenhof Group, Bern, Switzerland
| | - Stephan Reichenbach
- M. S. Hanke, S. D. Steppacher, K. A. Siebenrock, Department of Orthopedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- F. Schmaranzer, Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Department of Rheumatology, Immunology and Allergology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- S. F. Werlen, Department of Radiology, Sonnenhof Clinic, Lindenhof Group, Bern, Switzerland
| | - Stefan F. Werlen
- M. S. Hanke, S. D. Steppacher, K. A. Siebenrock, Department of Orthopedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- F. Schmaranzer, Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Department of Rheumatology, Immunology and Allergology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- S. F. Werlen, Department of Radiology, Sonnenhof Clinic, Lindenhof Group, Bern, Switzerland
| | - Klaus A. Siebenrock
- M. S. Hanke, S. D. Steppacher, K. A. Siebenrock, Department of Orthopedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- F. Schmaranzer, Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Department of Rheumatology, Immunology and Allergology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- S. Reichenbach, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- S. F. Werlen, Department of Radiology, Sonnenhof Clinic, Lindenhof Group, Bern, Switzerland
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Hosseinzadeh S, Novais EN, Emami A, Portilla G, Maranho DA, Kim YJ, Kiapour AM. Does the Capital Femoral Physis Bony MorphologyDiffer in Children with Symptomatic Cam-type Femoroacetabular Impingement. Clin Orthop Relat Res 2021; 479:922-931. [PMID: 33337602 PMCID: PMC8052091 DOI: 10.1097/corr.0000000000001602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 11/11/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND The epiphyseal tubercle, the corresponding metaphyseal fossa, and peripheral cupping are key stabilizers of the femoral head-neck junction. Abnormal development of these features in the setting of supraphysiologic physeal stress under high forces (for example, forces that occur during sports activity) may result in a cam morphology. Although most previous studies on cam-type femoroacetabular impingement (FAI) have mainly focused on overgrowth of the peripheral cupping, little is known about detailed morphologic changes of the epiphyseal and metaphyseal bony surfaces in patients with cam morphology. QUESTIONS/PURPOSES (1) Does the CT-based bony morphology of the peripheral epiphyseal cupping differ between patients with a cam-type morphology and asymptomatic controls (individuals who did not have hip pain)? (2) Does the CT-based bony morphology of the epiphyseal tubercle differ between patients with a cam-type morphology and asymptomatic controls? (3) Does the CT-based bony morphology of the metaphyseal fossa differ between patients with a cam-type morphology and asymptomatic controls? METHODS After obtaining institutional review board approval for this study, we retrospectively searched our institutional database for patients aged 8 to 15 years with a diagnosis of an idiopathic cam morphology who underwent a preoperative CT evaluation of the affected hip between 2005 and 2018 (n = 152). We excluded 96 patients with unavailable CT scans and 40 patients with prior joint diseases other than cam-type FAI. Our search resulted in 16 patients, including nine males. Six of 16 patients had a diagnosis of bilateral FAI, for whom we randomly selected one side for the analysis. Three-dimensional (3-D) models of the proximal femur were generated to quantify the size of the peripheral cupping (peripheral growth of the epiphysis around the metaphysis), epiphyseal tubercle (a beak-like prominence in the posterosuperior aspect of the epiphysis), and metaphyseal fossa (a groove on the metaphyseal surface corresponding to the epiphyseal tubercle). A general linear model was used to compare the quantified anatomic features between the FAI cohort and 80 asymptomatic hips (aged 8 to 15 years; 50% male) after adjusting for age and sex. A secondary analysis using the Wilcoxon matched-pairs signed rank test was performed to assess side-to-side differences in quantified morphological features in 10 patients with unilateral FAI. RESULTS After adjusting for age and sex, we found that patients with FAI had larger peripheral cupping in the anterior, posterior, superior, and inferior regions than control patients who did not have hip symptoms or radiographic signs of FAI (by 1.3- to 1.7-fold; p < 0.01 for all comparisons). The epiphyseal tubercle height and length were smaller in patients with FAI than in controls (by 0.3- to 0.6-fold; p < 0.02 for all comparisons). There was no difference in tubercle width between the groups. Metaphyseal fossa depth, width, and length were larger in patients with FAI than in controls (by 1.8- to 2.3-fold; p < 0.001 for all comparisons). For patients with unilateral FAI, we saw similar peripheral cupping but smaller epiphyseal tubercle (height and length) along with larger metaphyseal fossa (depth) in the FAI side compared with the uninvolved contralateral side. CONCLUSION Consistent with prior studies, we observed more peripheral cupping in patients with cam-type FAI than control patients without hip symptoms or radiographic signs of FAI. Interestingly, the epiphyseal tubercle height and length were smaller and the metaphyseal fossa was larger in hips with cam-type FAI, suggesting varying inner bone surface morphology of the growth plate. The docking mechanism between the epiphyseal tubercle and the metaphyseal fossa is important for epiphyseal stability, particularly at early ages when the peripheral cupping is not fully developed. An underdeveloped tubercle and a large fossa could be associated with a reduction in stability, while excessive peripheral cupping growth would be a factor related to improved physeal stability. This is further supported by observed side-to-side differences in tubercle and fossa morphology in patients with unilateral FAI. Further longitudinal studies would be worthwhile to study the causality and compensatory mechanisms related to epiphyseal and metaphyseal bony morphology in pathogenesis cam-type FAI. Such information will lay the foundation for developing imaging biomarkers to predict the risk of FAI or to monitor its progress, which are critical in clinical care planning. LEVEL OF EVIDENCE Level III, prognostic study.
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Affiliation(s)
- Shayan Hosseinzadeh
- S. Hosseinzadeh, E. N. Novais, A. Emami, G. Portilla, D. A. Maranho, Y.-J. Kim, A. M. Kiapour, Department of Orthopaedic Surgery, Child and Young Adult Hip Preservation Program at Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
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Acetabular Rim Disorders/Pincer-type Femoroacetabular Impingement and Hip Arthroscopy. Sports Med Arthrosc Rev 2021; 29:35-43. [PMID: 33395229 DOI: 10.1097/jsa.0000000000000296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Femoroacetabular impingement (FAI) can lead to acetabular impaction, chondral injury, and labral pathology secondary to deformities of the proximal femur (CAM-type FAI), acetabulum (pincer-type FAI), or with combined FAI. While the majority of cases are of the combined type, this paper focuses on acetabular overcoverage/pincer-type deformities. Various pincer subtypes include focal anterior overcoverage, global retroversion, global overcoverage/profunda, protrusio, subspine impingement, and os acetabuli/rim fracture variants. A thorough history and physical examination, plain radiographs, magnetic resonance imaging, 3-dimensional computerized tomography, and diagnostic injections can lead to an accurate assessment of pincer-type variants. Appropriately indicated arthroscopic management techniques and pearls for the various pincer subtypes can lead to improved patient-related outcome measures and a high rate of return to athletic activity for the majority of these patients.
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Abstract
Borderline acetabular dysplasia represents a "transitional acetabular coverage" pattern between more classic acetabular dysplasia and normal acetabular coverage. Borderline dysplasia is typically defined as a lateral center-edge angle of 20 to 25 degrees. This definition of borderline dysplasia identifies a relatively narrow range of lateral acetabular coverage patterns, but anterior and posterior coverage patterns are highly variable and require careful assessment radiographically, in addition to other patient factors. Treatment decisions between isolated hip arthroscopy (addressing labral pathology, femoroacetabular impingement bony morphology, and capsular laxity) and periacetabular osteotomy (improving osseous joint stability; often combined with hip arthroscopy) remain challenging because the fundamental mechanical diagnosis (instability vs. femoroacetabular impingement) can be difficult to determine clinically. Treatment with either isolated hip arthroscopy or periacetabular osteotomy (with or without arthroscopy) appears to result in improvements in patient-reported outcomes in many patients, but with up to 40% with suboptimal outcomes. A patient-specific approach to decision-making that includes a comprehensive patient and imaging evaluation is likely required to achieve optimal outcomes.
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Ha YC, Lim JY, Won YS, Lee YK, Koo KH, Kim JW. Outcomes of arthroscopic femoroplasty in patients with cam lesions: Minimum 2-year follow-up. J Orthop Surg (Hong Kong) 2021; 28:2309499020942049. [PMID: 32700626 DOI: 10.1177/2309499020942049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Successful arthroscopic femoroplasty in patients with cam lesions have been reported in Western countries in the last two decades. However, the outcomes after arthroscopic femoroplasty in Asia have thus far only been reported in patients with borderline dysplasia and in the military population. This retrospective study was designed to evaluate the short-term clinical outcomes and radiologic outcomes after hip arthroscopy in patients with cam-type femoroacetabular impingement (FAI) at a minimum postoperative follow-up of 2 years. METHODS From January 2013 to December 2016, 204 hip arthroscopy procedures were performed. Of these cases, 62 patients (73 hips) underwent hip arthroscopy for cam-type FAI. RESULTS Of the 73 hips, 65 (89.0%) achieved gratified reduction or elimination of preoperative pain. The clinical outcomes showed improvement in scores from before surgery to the last follow-up: 67.1 ± 15.0 to 90.2 ± 6.3 for the modified Harris hip score (p < 0.001), 4.7 ± 2.5 to 7.1 ± 1.4 for the University of California Los Angeles score (p < 0.001), and 7.4 ± 1.9 to 1.8 ± 1.5 for the visual analog scale score (p < 0.001). In radiologic assessments, significant improvement was observed in the alpha angle from a mean 60.9° to 49.5° (p < 0.001) and in the head-neck offset from a mean of 3.3 mm to 6.3 mm (p < 0.001). Of the 73 hips, 65 (89.0%) achieved satisfactory reduction or elimination of preoperative pain. In subgroup analysis for the sufficiency of femoroplasty (alpha angle < 55°), the clinical outcomes were not different between the two groups. CONCLUSION Arthroscopic femoroplasty resulted in an 89% satisfaction at the 2-year follow-up. Therefore, hip arthroscopic femoroplasty might be an excellent alternative to open surgery and offers a greater probability of good to excellent results.
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Affiliation(s)
- Yong-Chan Ha
- Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jae-Young Lim
- Department of Orthopaedic Surgery, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Yoo-Sun Won
- Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Young-Kyun Lee
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Kyung-Hoi Koo
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jin-Woo Kim
- Department of Orthopaedic Surgery, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
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Abstract
This article provides concise and up-to-date information on the most common hip pathologies that affect adolescent athletes. We cover the evaluation and treatment of avulsion injuries, stress fractures, slipped capital femoral epiphysis (SCFE), femoroacetabular impingement, developmental dysplasia of the hip, Legg-Calve-Perthes disease, and coxa saltans focusing on minimizing advanced imaging and using conservative therapy when applicable. Although this is not an all-encompassing list of disorders, it is key to understand these hip pathologies because these injuries occur commonly and can also have detrimental complications if not diagnosed and addressed early, especially SCFE and femoral neck stress fractures.
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Affiliation(s)
- Paul B Schroeder
- Department of Orthopaedics, San Antonio Military Medical Center, 3851 Roger Brooke Drive, Fort Sam Houston, TX 78234, USA
| | - Marc A Nicholes
- School of Osteopathic Medicine, University of the Incarnate Word, 7615 Kennedy Hill, Building 1, San Antonio, TX 78234, USA
| | - Matthew R Schmitz
- Department of Orthopaedics, San Antonio Military Medical Center, 3851 Roger Brooke Drive, Fort Sam Houston, TX 78234, USA.
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Heerey J, Agricola R, Smith A, Kemp J, Pizzari T, King M, Lawrenson P, Scholes M, Crossley K. The Size and Prevalence of Bony Hip Morphology Do Not Differ Between Football Players With and Without Hip and/or Groin Pain: Findings From the FORCe Cohort. J Orthop Sports Phys Ther 2021; 51:115-125. [PMID: 33356776 DOI: 10.2519/jospt.2021.9622] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To compare the size and prevalence of bony hip morphology in football players with and without hip and/or groin pain. DESIGN Case-control. METHODS We recruited 184 soccer and Australian football players with self-reported hip and/or groin pain of greater than 6 months in duration and a positive flexion, adduction, and internal rotation (FADIR) test (290 hips, 21% women), and 55 football players with no pain and a negative FADIR test (110 hips, 26% women) as a control group. Bony hip morphology was identified by the alpha angle and lateral center-edge angle (LCEA) on anteroposterior pelvis and Dunn 45° radiographs. The alpha angle and LCEA were analyzed as continuous measures (size) and dichotomized using threshold values to determine the presence of bony hip morphology (cam, large cam, pincer, and acetabular dysplasia). Regression analyses estimated differences in the size and prevalence of bony hip morphology between football players with and without pain. RESULTS In all football players and in men, the size and prevalence of bony hip morphology did not differ between those with and without hip and/or groin pain. Cam morphology was evident in 63% of hips in players without pain and 71% of symptomatic hips in players with hip and/or groin pain. In female football players with hip and/or groin pain compared to those without pain, larger alpha angle values were observed on the Dunn 45° view (5.9°; 95% confidence interval: 1.2°, 10.6°; P = .014). CONCLUSION The size and prevalence of bony hip morphology appear to be similar in football players with and without hip and/or groin pain. J Orthop Sports Phys Ther 2021;51(3):115-125. Epub 25 Dec 2020. doi:10.2519/jospt.2021.9622.
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Hale RF, Melugin HP, Zhou J, LaPrade MD, Bernard C, Leland D, Levy BA, Krych AJ. Incidence of Femoroacetabular Impingement and Surgical Management Trends Over Time. Am J Sports Med 2021; 49:35-41. [PMID: 33226833 PMCID: PMC8025987 DOI: 10.1177/0363546520970914] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Femoroacetabular impingement (FAI) is a well-known cause of hip pain in adolescents and young adults. However, the incidence in the general population has not been clearly defined. PURPOSE To (1) define the population-based incidence of diagnosis of FAI in patients with hip pain, (2) report the trends in diagnosis of FAI over time, and (3) determine the changes in the rate and type of surgical management over time. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A geographic database was used to identify patients who were 14 to 50 years old with hip pain between the years 2000 and 2016. Chart and radiographic review was performed to determine which patients had FAI. To be included, patients had to have a triad of clinical symptoms, physical examination signs, and imaging findings consistent with FAI. Medical records were reviewed to obtain demographic information, clinical history, physical examination findings, imaging details, and treatment details. Statistical analysis determined the overall age- and sex-adjusted annual incidence of FAI diagnosis and trends over time. RESULTS There were 1893 patients evaluated with hip pain, and 716 (38%; 813 hips) had diagnosed FAI. The mean ± SD age was 27.2 ± 8.4 years, and 67% were female. The incidence of FAI diagnosis was 54.4 per 100,000 person-years. Female patients had a higher incidence than male patients (73.2 vs 36.1 per 100,000 person-years; P < .01). Incidence of FAI diagnosis were higher from 2010 to 2016 (72.6 per 100,000 person-years; P < .01) as compared with 2005 to 2009 (45.3) and 2000 to 2004 (40.3). Hip arthroscopy, surgical hip dislocation, and periacetabular osteotomy utilization increased from the 2000-2004 to 2010-2016 periods, respectively: 1 (1%) to 160 (20%; P = .04), 2 (1%) to 37 (5%; P = .01), and 1 (1%) to 22 (3%; P = .58). CONCLUSION The overall incidence of FAI diagnosis was 54.4 per 100,000 person-years, and it consistently increased between 2000 and 2016. Female patients had a higher incidence than male patients. The utilization of joint preservation operations, including hip arthroscopy, surgical hip dislocation, and anteverting periacetabular osteotomy, increased over time.
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Affiliation(s)
- Rena F. Hale
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Heath P. Melugin
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Jun Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Matthew D. LaPrade
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Devin Leland
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Bruce A. Levy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Aaron J. Krych
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA,Address correspondence to Aaron J. Krych, MD, Department of Orthopedic Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA ()
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Jauregui JJ, Salmons HI, Meredith SJ, Oster B, Gopinath R, Adib F. Prevalence of femoro-acetabular impingement in non-arthritic patients with hip pain: a meta-analysis. INTERNATIONAL ORTHOPAEDICS 2020; 44:2559-2566. [PMID: 33094401 DOI: 10.1007/s00264-020-04857-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 10/15/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE As the prevalence of femoro-acetabular impingement syndrome (FAIS) in symptomatic patients who lack evidence of hip osteoarthritis (OA) remains to be described, the purpose of this study was to calculate the prevalence of FAIS in this patient population. METHODS Libraries of PubMed, Embase, and Ovid were systematically reviewed for all studies between 2009 and 2019, investigating femoro-acetabular impingement and hip pain. Level I-IV studies delineating patients with hip pain who do not have OA (Tonnis or Outerbridge grades < three) were included. Demographics, outcomes, radiographic parameters, and criteria were entered into a meta-analysis to calculate the incidence of FAIS in non-arthritic symptomatic hips. RESULTS In total, 2264 patients (2758 hips) were included in the pooled analysis. Weighted mean age was 31 years. The incidence of FAIS in patients with no evidence of osteoarthritis but who complain of hip pain is 61% (47.3-74.4%). In total, 1483 hips were diagnosed with FAIS. Of the studies that described the rates of all three of the various subtypes of FAIS in their reports, 37% had a combined-type, 38% had a cam-type, and 25% had a pincer-type FAIS. CONCLUSION Femoroacetabular impingement should be suspected in 47 to 74% of patients with hip pain and without arthritis. Physicians must maintain a high index of suspicion for FAIS in young patients presenting with hip pain, as FAIS is a common and treatable condition that, if left alone, may lead to hip degeneration.
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Affiliation(s)
- Julio J Jauregui
- Department of Orthopaedics, University of Maryland School of Medicine, 110 Paca Street, Baltimore, MD, 21201, USA
| | - Harold I Salmons
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Sean J Meredith
- Department of Orthopaedics, University of Maryland School of Medicine, 110 Paca Street, Baltimore, MD, 21201, USA
| | - Brittany Oster
- Department of Orthopaedics, University of Maryland School of Medicine, 110 Paca Street, Baltimore, MD, 21201, USA
| | - Rohan Gopinath
- Department of Orthopaedics, University of Maryland School of Medicine, 110 Paca Street, Baltimore, MD, 21201, USA
| | - Farshad Adib
- Department of Orthopaedics, University of Maryland School of Medicine, 110 Paca Street, Baltimore, MD, 21201, USA.
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Scanaliato JP, Chasteen J, Polmear MM, Salfiti C, Wolff AB. Primary and Revision Circumferential Labral Reconstruction for Femoroacetabular Impingement in Athletes: Return to Sport and Technique. Arthroscopy 2020; 36:2598-2610. [PMID: 32389774 DOI: 10.1016/j.arthro.2020.04.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 04/26/2020] [Accepted: 04/26/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To determine return-to-play rates and hip-specific outcomes in athlete hips with femoroacetabular impingement syndrome treated with circumferential labral reconstruction (CLR). METHODS All consecutive patients who underwent CLR from January through December 2016 performed by the senior surgeon with complete 2-year outcome scores were identified. The hips of 57 non-athletes who underwent CLR were excluded from analysis, as were 165 patients who underwent labral repair and 4 patients who underwent labral debridement. Outcome measures were completed by patients within 1 week prior to surgery and between 22 and 26 months postoperatively. Thirty patients met the inclusion criteria for this study. All 30 participated in regular, competitive athletic events and had magnetic resonance arthrogram-confirmed labral tears, and nonsurgical measures had failed. Of the 30 patients, 5 (16.7%) participated in cutting sports; 5 (16.7%), asymmetrical or overhead sports; 4 (13.3%), contact sports; 13 (43.3%), endurance sports; and 3 (10.0%), flexibility sports. Moreover, 25 of 30 (83.3%) were high-level athletes. Both primary (n = 23) and revision (n = 7) procedures were included. RESULTS As determined by the International Hip Outcome Tool 12 score, 28 of 30 patients (93.3%) met the patient acceptable symptomatic state whereas 30 of 30 (100%) achieved substantial clinical benefit and exceeded the minimal clinically important difference for their operative hip. In addition, 23 of 30 patients (76.6%) met the patient acceptable symptomatic state whereas 30 of 30 (100%) achieved substantial clinical benefit and exceeded the minimal clinically important difference for the operative hip as determined by the visual analog scale pain score. Of 30 patients, 26 (86.7%) were able to return to play. The mean time to return to play was 6.6 months (standard deviation, 2.4 months). CONCLUSIONS Two-year outcomes in this population of athletes undergoing CLR for femoroacetabular impingement syndrome show a statistically and clinically significant improvement in patient-reported outcomes, a statistically and clinically significant decrease in pain, and an overall return-to-play rate of 86.7%. LEVEL OF EVIDENCE Level IV, therapeutic case series.
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Affiliation(s)
| | - Jesse Chasteen
- School of Medicine, Uniformed Services University, Bethesda, Maryland, U.S.A
| | | | | | - Andrew B Wolff
- Washington Orthopaedics and Sports Medicine, Washington, DC, U.S.A
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van Klij P, Reiman MP, Waarsing JH, Reijman M, Bramer WM, Verhaar JAN, Agricola R. Classifying Cam Morphology by the Alpha Angle: A Systematic Review on Threshold Values. Orthop J Sports Med 2020; 8:2325967120938312. [PMID: 32844100 PMCID: PMC7418265 DOI: 10.1177/2325967120938312] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background The alpha angle is the most often used measure to classify cam morphology. There is currently no agreement on which alpha angle threshold value to use. Purpose To systematically investigate the different alpha angle threshold values used for defining cam morphology in studies aiming to identify this threshold and to determine whether data are consistent enough to suggest an alpha angle threshold to classify cam morphology. Study Design Systematic review; Level of evidence, 3. Methods The Embase, Medline (Ovid), Web of Science, Cochrane Central, and Google Scholar databases were searched from database inception to February 28, 2019. Studies aiming at identifying an alpha angle threshold to classify cam morphology were eligible for inclusion. Results We included 4 case-control studies, 10 cohort studies, and 1 finite-element study from 2437 identified publications. Studies (n = 3) using receiver operating characteristic (ROC) curve analysis to distinguish asymptomatic people from patients with femoroacetabular impingement syndrome consistently observed alpha angle thresholds between 57° and 60°. A 60° threshold was also found to best discriminate between hips with and without cam morphology in a large cohort study based on a bimodal distribution of the alpha angle. Studies (n = 8) using the upper limit of the 95% reference interval as threshold proposed a wide overall threshold range between 58° and 93°. When stratified by sex, thresholds between 63° and 93° in male patients and between 58° and 94° in female patients were reported. Conclusion Based on the available evidence, mostly based on studies using ROC curve analysis, an alpha angle threshold of ≥60° is currently the most appropriate to classify cam morphology. Further research is required to fully validate this threshold.
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Affiliation(s)
- Pim van Klij
- Department of Orthopaedic Surgery, Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Michael P Reiman
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA
| | - Jan H Waarsing
- Department of Orthopaedic Surgery, Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Max Reijman
- Department of Orthopaedic Surgery, Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Wichor M Bramer
- Medical Library, Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Jan A N Verhaar
- Department of Orthopaedic Surgery, Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Rintje Agricola
- Department of Orthopaedic Surgery, Erasmus MC, University Medical Center Rotterdam, the Netherlands
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Weber AE, Nakata H, Mayer EN, Bolia IK, Philippon MJ, Snibbe J, Romano R, Tibone JE, Gamradt SC. Return to Sport After Hip Arthroscopy for Femoroacetabular Impingement Syndrome in NCAA Division I Athletes: Experience at a Single Institution. Orthop J Sports Med 2020; 8:2325967120918383. [PMID: 32548179 PMCID: PMC7249579 DOI: 10.1177/2325967120918383] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/29/2020] [Indexed: 11/24/2022] Open
Abstract
Background: The rate of return to sport after surgical treatment of femoroacetabular
impingement (FAI) syndrome (FAIS) has been studied in high-level athletes.
However, few studies examining this rate have focused exclusively on
National Collegiate Athletic Association (NCAA) Division I athletes. Purpose: To evaluate the return-to-sport rate after hip arthroscopy for FAIS and to
examine the influence of sport type on the clinical presentation of FAIS in
collegiate athletes. Study Design: Case series; Level of evidence, 4. Methods: Included in this study were NCAA Division I student-athletes who underwent
hip arthroscopy for FAIS at our institution between 2010 and 2017. Exclusion
criteria were history of previous hip pathology, pediatric hip disease,
radiographic evidence of osteoarthritis (Tönnis grade >0), prior lower
extremity procedure, history of chronic pain, osteoporosis, or history of
systemic inflammatory disease. Athletes were categorized into 6 subgroups
based on the type of sport (cutting, contact, endurance, impingement,
asymmetric/overhead, and flexibility) by using a previously reported
classification system. Patient characteristics and preoperative,
intraoperative, and return-to-sport variables were compared among sport
types. Results: A total of 49 hip arthroscopies for FAIS were performed in 39 collegiate
athletes (10 females, 29 males; mean age, 19.5 ± 1.3 years). A total of 1
(2.6%) cutting athlete, 15 (38.5%) contact athletes, 8 (20.5%) impingement
athletes, 6 (15.4%) asymmetric/overhead athletes, and 9 (23.1%) endurance
athletes were included in the study. There were no differences among sports
groups with respect to the FAI type. Endurance athletes had lower rates of
femoral osteochondroplasty (45.5%) and labral debridement (0.0%)
(P < .0001). Contact sport athletes had higher rates
of labral debridement (50.0%; P < .0001). Patients were
evaluated for return to sport at an average of 1.96 ± 0.94 years. Overall,
the return-to-sport rate was 89.7%. There were no differences in
return-to-sport rates based on the sport type except for endurance athletes,
who returned at a lower rate (66.6%; P < .001). No
differences in return-to-sport rate (P = .411), duration
after return (P = .265), or highest attempted level of
sport resumed (P = .625) were found between patients who
underwent labral repair versus debridement. Conclusion: Collegiate-level athletes who underwent hip arthroscopy for FAIS returned to
sport at high and predictable rates, with endurance athletes possibly
returning to sport at lower rates than all other sport types. Surgical
procedures may be influenced by sport type, but the rate of return to sport
between athletes who underwent labral debridement versus labral repair was
similar.
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Affiliation(s)
- Alexander E Weber
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, California, USA
| | - Haley Nakata
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, California, USA
| | - Eric N Mayer
- Department of Orthopedic Surgery, University of California-Los Angeles, Los Angeles, California, USA
| | - Ioanna K Bolia
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, California, USA
| | - Marc J Philippon
- The Steadman Clinic and Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Jason Snibbe
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, California, USA
| | - Russ Romano
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, California, USA
| | - James E Tibone
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, California, USA
| | - Seth C Gamradt
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, California, USA
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Öhlin A, Simunovic N, Duong A, Ayeni OR. Protocol for a multicenter prospective cohort study evaluating sport activity and development of femoroacetabular impingement in the adolescent hip. BMC Musculoskelet Disord 2020; 21:221. [PMID: 32278355 PMCID: PMC7149893 DOI: 10.1186/s12891-020-03220-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 03/17/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Femoroacetabular impingement (FAI) is an important cause of hip pain in young and active individuals and occurs as a result of size and shape mismatch between the femoral head and acetabulum. Open physes in children can make hips more susceptible to injury, and high impact forces have been suggested to affect the developing femur. The diagnosis of FAI has recently risen, especially within adolescent populations, and there is an increasing trend towards year-round participation in sports with early specialization. The PREVIEW study is an international longitudinal study designed to determine the association between sport specialization in adolescence and the development of hip impingement. METHODS This is a multicentre prospective cohort study evaluating 200 participants between the ages of 12-14 that include sport specialists at the moderate to vigorous physical activity (MVPA) level and non-sport specialists at any activity level. We will monitor physical activity levels of all participants using an activity log and a wrist-mounted activity tracker, with synced data collected every 3 months during the study period. In addition, participants will be evaluated clinically at 6, 12, and 18 months and radiographically at the time of enrolment and 24 months. The primary outcome is the incidence of FAI between groups at 2 years, determined via MRI. Secondary outcomes include hip function and health-related quality of life between subjects diagnosed with FAI versus no FAI at 2 years, as determined by the Hip Outcome Score (HOS) and Pediatric Quality of Life (PedsQL) questionnaires. DISCUSSION It is important to mitigate the risk of developing hip deformities at a young age. Our proposed prospective evaluation of the impact of sport activity and hip development is relevant in this era of early sport specialization in youth. Improving the understanding between sport specialization and the development of pre-arthritic hip disease such as FAI can lead to the development of training protocols that protect the millions of adolescents involved in sports annually. TRIAL REGISTRATION PREVIEW is registered with clinicaltrials.gov (NCT03891563).
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Affiliation(s)
- Axel Öhlin
- Department of Surgery, Division of Orthopaedic Surgery, McMaster University, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada
| | - Nicole Simunovic
- Department of Surgery, Division of Orthopaedic Surgery, McMaster University, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada
| | - Andrew Duong
- Department of Surgery, Division of Orthopaedic Surgery, McMaster University, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada
| | - Olufemi R Ayeni
- Department of Surgery, Division of Orthopaedic Surgery, McMaster University, 1200 Main St West, 4E15, Hamilton, ON, L8N 3Z5, Canada.
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Hassebrock JD, Chhabra A, Makovicka JL, Economopoulos KJ. Bilateral Hip Arthroscopy in High-Level Athletes: Results of a Shorter Interval Between Staged Bilateral Hip Arthroscopies. Am J Sports Med 2020; 48:654-660. [PMID: 31928409 DOI: 10.1177/0363546519895259] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Hip arthroscopy is a safe and effective mechanism for treating femoroacetabular impingement symptoms in high level athletes. Bilateral symptoms occur in a subset of this population. PURPOSE To discuss outcomes of bilateral hip arthroscopy in high-level athletes and compare a standard staged timeline for bilateral hip arthroscopic surgery versus an accelerated timeline. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A retrospective review of all staged bilateral hip arthroscopies was performed on high-level athletes over a 3-year period. Patients were categorized into cohorts based upon when the second procedure was performed (4-6 weeks after the index procedure or >6 weeks after the index procedure). Exclusion criteria included any prior hip surgery, advanced arthritis, previous pelvic or femoral fracture, or inflammatory arthropathy. Demographics, radiographic measurements, operative reports of procedures performed, and patient-reported outcomes (Hip Outcome Score-Activities of Daily Living, Hip Outcome Score-Sport Specific Subscale, modified Harris Hip Score, return to sports, return to same level of play) were compared between groups at 6-month, 1-year, and 2-year intervals, with the Student t test used for continuous data and a chi-square test used for categorical data. RESULTS 50 patients were identified: 22 in the accelerated surgery (AS) group and 28 in the standard surgery (SS) group. Age and number of collegiate participants were greater in the AS group, whereas the number of high school participants and the time away from sports were higher in the SS group. Preoperative alpha angles were significantly larger among the AS group, but no differences were found in postoperative alpha angles, center edge angles, or Tönnis grades. No significant difference was seen in patient-reported outcomes between the 2 groups at 6-month, 1-year, and 2-year follow-up. CONCLUSION Bilateral hip arthroscopy performed 4 to 6 weeks apart is a safe and effective treatment option for athletes with bilateral femoroacetabular impingement and labral tears; the procedures entail a high rate of return to sports, return to the same level of sports, and decreased time lost from sports. This information could be useful for an athlete deciding on whether to proceed with bilateral hip arthroscopy and deciding on the timing for the procedures.
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Affiliation(s)
| | - Anikar Chhabra
- The Orthopaedic Clinic Association, Phoenix, Arizona, USA
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40
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Philippi MT, Kahn TL, Adeyemi TF, Maak TG, Aoki SK. Leg dominance as a risk factor for femoroacetabular impingement syndrome. J Hip Preserv Surg 2020; 7:22-26. [PMID: 32382425 PMCID: PMC7195927 DOI: 10.1093/jhps/hnaa007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 12/05/2022] Open
Abstract
One etiological factor of femoroacetabular impingement syndrome (FAIS) is high impact athletics involving deep hip flexion, axial loading and jumping during skeletal development. Previous work has established that there is physiologic asymmetry of the lower limbs regarding function, with the dominant limb being primarily responsible for propulsion and kicking while the non-dominant limb is responsible for stability and planting. The authors hypothesize that the dominant limb will be more likely to undergo hip arthroscopy for symptomatic FAIS. Four hundred and sixty-nine patients at a single surgical center who underwent primary or revision hip arthroscopy for cam-type FAIS were identified. Patients were asked to identify their dominant lower extremity, defined as the lower extremity preferred for kicking. Sixty patients who indicated bilateral leg dominance were excluded. It was assumed that with no association between limb dominance and the need for surgery, the dominant side would have surgery 50% of the time. Enrichment for surgery in the dominant limb was tested for using a one-sample test of proportions, determining whether the rate differed from 50%. The enrichment for surgery on the dominant side was 57% (95% confidence interval 52–62%) which was significantly different from the rate expected by chance (50%), P = 0.003. No other significant differences were noted between groups. Limb dominance appears to be an etiological factor in the development of cam-type FAIS. Patients are more likely to undergo arthroscopic treatment of FAIS on their dominant lower extremity, although the non-dominant lower extremity frequently develops FAIS as well.
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Affiliation(s)
- Matthew T Philippi
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA
| | - Timothy L Kahn
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA
| | - Temitope F Adeyemi
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA
| | - Travis G Maak
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA
| | - Stephen K Aoki
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA
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41
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Haug EC, Novicoff WM, Cui Q. Corrections in alpha angle following two different operative approaches for CAM-type femoral acetabular impingement - Ganz surgical hip dislocation vs anterior mini-open. World J Orthop 2020; 11:27-35. [PMID: 31966967 PMCID: PMC6960304 DOI: 10.5312/wjo.v11.i1.27] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/16/2019] [Accepted: 11/07/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Femoroacetabular impingement (FAI) is a predisposing factor for secondary osteoarthritis of the hip joint. The two extensively described impingement mechanisms of FAI are CAM and Pincer-type. Initially managed conservatively, operative intervention should be offered to the persistently symptomatic patient. The measurement of the alpha angle is considered a standard method of assessing the severity of pathology in Cam-type FAI on pre-operative plain radiographs. The radiological correction of the alpha angle has not been previously compared between different surgical approaches. We hypothesize that there is no difference in alpha angle correction between Ganz surgical hip dislocation and the anterior mini-open approach.
AIM To compare the magnitude of alpha angle correction achieved by using the Ganz surgical hip dislocation and the anterior mini-open approach.
METHODS This is a retrospective study assessing seventy-nine patients identified in a 5-year period. These patients had preoperative radiographic evidence of FAI and underwent surgery by a single surgeon at our institution, a tertiary care center. Patients with missing radiographic documentation, radiographs with insufficient quality which then precluded accurate measurement of the angle α, a diagnosed congenital condition, isolated type II pathology (Pincer), and history of prior surgery were excluded from the study. Either the Ganz surgical hip dislocation or the anterior mini open approach was used. Postoperative radiographic evaluation of the alpha angle between the two surgical methods was done and corrected for age and gender using two-sample t-tests and Chi-square analyses.
RESULTS A total of 79 patients met the inclusion and exclusion criteria. Forty-seven males (mean age of 35.3, range 16-53) and 32 females (mean age 36.7, range 16-60) were enrolled. Forty-seven patients underwent the anterior mini-open approach, and 32 underwent the Ganz surgical hip dislocation. There were no significant differences in age between the two surgical groups or in pre- and post-operative alpha angles based on patient gender. The mean pre-operative alpha angle for the Ganz surgical hip dislocation group was 88.0 degrees (SD 12.3) and 99.4 degrees (SD 7.2) for the anterior mini-open group. Mean post-operative angles were 49.9 degrees (SD 4.3) for the Ganz surgical hip dislocation and 43.8 (SD 4.3) degrees for the anterior mini-open group. There was a statistically significant difference in patient’s pre-operative and post-operative angles (P = 0.000) with both surgical approaches.
CONCLUSION Statistically significant decreases in alpha angle were noted for both surgical techniques, with larger decreases seen in the anterior mini-open group.
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Affiliation(s)
- Emanuel C Haug
- Department of Orthopedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Wendy M Novicoff
- Department of Orthopedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Quanjun Cui
- Department of Orthopedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
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Chenard KE, Mai D, Begly JP, Ryan MK, Youm T. Does a Traumatic Etiology of Hip Pain Influence Hip Arthroscopy Outcomes? Arthroscopy 2020; 36:167-175. [PMID: 31784366 DOI: 10.1016/j.arthro.2019.07.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 07/16/2019] [Accepted: 07/25/2019] [Indexed: 02/08/2023]
Abstract
PURPOSE To determine whether patients who reported a discrete traumatic event precipitating the onset of femoroacetabular impingement syndrome (FAIS) reported similar patient-reported outcomes for the modified Harris Hip Score (mHHS) and the Non-Arthritic Hip Score (NAHS) following hip arthroscopy as patients with atraumatic hip pain associated with FAIS alone. METHODS A retrospective comparative therapeutic investigation of a prospectively collected database of cases performed by a single surgeon from 2010 to 2015 identified a group of patients who developed FAIS after a discrete traumatic event. This group was compared 1:2 with a body mass index and age-matched group of primary hip arthroscopies with atraumatic hip pain attributed to FAIS. Preoperative mHHS and NAHS were obtained and compared with those at 2-year follow-up. Clinical failure at 2 years was defined as any further ipsilateral hip surgery including revision arthroscopy and conversion to arthroplasty. RESULTS In the traumatic etiology group, the mean mHHS and NAHS improved from 49.6 to 82.7 (P < .001) and from 46.9 to 84.0 (P < .001), respectively. The mean mHHS and NAHS in the atraumatic group improved from 51.5 to 85.82 (P < .001) and from 49.3 to 85.2 (P < .001), respectively. Survivorship at 2 years was 81.1% for traumatic etiology and 88.3% for atraumatic etiology; adjusted proportional hazards regression analysis demonstrated a difference in survivorship that was not statistically significant between the traumatic and atraumatic cohorts (hazard ratio 1.8, 95% confidence interval 0.8-4.0). CONCLUSIONS The findings of this study demonstrate that patients presenting with FAIS and history of a traumatic hip injury can expect to experience similar good outcomes at 2 years following primary hip arthroscopy as compared with patients with atraumatic FAIS. LEVEL OF EVIDENCE Level III (Therapeutic) retrospective comparative study.
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Affiliation(s)
- Kristofer E Chenard
- Division of Sports Medicine, New York University Langone Orthopedic Hospital, New York, New York, U.S.A..
| | - David Mai
- Division of Sports Medicine, New York University Langone Orthopedic Hospital, New York, New York, U.S.A
| | - John P Begly
- Division of Sports Medicine, New York University Langone Orthopedic Hospital, New York, New York, U.S.A
| | - Michael K Ryan
- American Sports Medicine Institute, Birmingham, Alabama, U.S.A
| | - Thomas Youm
- Division of Sports Medicine, New York University Langone Orthopedic Hospital, New York, New York, U.S.A
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Breighner RE, Bogner EA, Lee SC, Koff MF, Potter HG. Evaluation of Osseous Morphology of the Hip Using Zero Echo Time Magnetic Resonance Imaging. Am J Sports Med 2019; 47:3460-3468. [PMID: 31633993 DOI: 10.1177/0363546519878170] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Femoroacetabular impingement syndrome (FAIS) is a common disorder of the hip resulting in groin pain and ultimately osteoarthritis. Radiologic assessment of FAI morphologies, which may present with overlapping radiologic features of hip dysplasia, often requires the use of computed tomography (CT) for evaluation of osseous abnormality, owing to the difficulty of direct visualization of cortical and subchondral bone with conventional magnetic resonance imaging (MRI). The use of a zero echo time (ZTE) MRI pulse sequence may obviate the need for CT by rendering bone directly from MRI. PURPOSE/HYPOTHESIS The purpose was to explore the application of ZTE MRI to the assessment of osseous FAI and dysplasia morphologies of the hip. It was hypothesized that angular measurements from ZTE images would show significant agreement with measurements obtained from CT images. STUDY DESIGN Cohort study (diagnosis); Level of evidence, 2. METHODS Thirty-eight hips from 23 patients were imaged with ZTE MRI and CT. Clinically relevant angular measurements of hip morphology were made in both modalities and compared to assess agreement. Measurements included coronal and sagittal center-edge angles, femoral neck-shaft angle, acetabular version (at 1-, 2-, and 3-o'clock positions), Tönnis angle, alpha angle, and modified-beta angle. Interrater agreement was assessed for a subset of 10 hips by 2 raters. Intermodal agreement was assessed on the complete cohort and a single rater. RESULTS Interrater agreement was demonstrated in both CT and ZTE, with intraclass correlation coefficient values ranging from 0.636 to 0.990 for ZTE and 0.747 to 0.983 for CT, indicating "good" to "excellent" agreement. Intermodal agreement was also shown to be significant, with intraclass correlation coefficients ranging from 0.618 to 0.904. CONCLUSION Significant agreement of angular measurements for hip morphology exists between ZTE MRI and CT imaging. ZTE MRI may be an effective method to quantitatively evaluate osseous hip morphology.
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Affiliation(s)
- Ryan E Breighner
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA
| | - Eric A Bogner
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA
| | - Susan C Lee
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA
| | - Matthew F Koff
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA
| | - Hollis G Potter
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA
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Carton PF, Filan DJ. The clinical presentation, diagnosis and pathogenesis of symptomatic sports-related femoroacetabular impingement (SRFAI) in a consecutive series of 1021 athletic hips. Hip Int 2019; 29:665-673. [PMID: 30741014 PMCID: PMC6753647 DOI: 10.1177/1120700018825430] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
AIM To examine the pathogenesis and clinical presentation of sports-related femoroacetabular impingement (SRFAI) in a large consecutive series of symptomatic athletes. METHODS Between January 2009 and February 2017 prospectively collected data from competitive athletes within the Gaelic Athletic Association (GAA), and who subsequently underwent arthroscopic treatment for symptomatic FAI, were analysed. Data was collected using internationally validated health questionnaires (Harris Hip Score, UCLA, SF-36, WOMAC) and recognised clinical (ROM, symptom presentation, provocation tests) and radiological (AP pelvis, Dunn, False profile) indicators/measures of FAI. RESULTS A total of 1021 consecutive cases (mean 26.6 ± 6.2 years) were included. In every case, conservative treatment failed to resolve symptoms with athletes attending an average of 2.4 ± 1.1 health care professionals prior to referral. Symptoms developed gradually (78%) and consisted primarily of groin pain (76.1%) and hip stiffness (76.5%) following activity. An acetabular rim deformity (pincer) was present in all cases; a cam deformity in 72.1%. The prevalence and degree of cam deformity increased with progressing age groups (p < 0.001); mean lateral centre-edge angle remained static (p = 0.456). Increasing CEA, alpha angle and presence of rim fracture was associated with a reduction in all ranges of hip movement (p < 0.001). CONCLUSION Symptomatic SRFAI presented in this large series of GAA athletes failed to resolve with non-operative treatment. Increasing hip deformity resulted in poorer ROM. Abnormal acetabular morphology remains static with increasing athletic age while cam deformity is progressive and most likely a secondary pathology.
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Affiliation(s)
- Patrick F Carton
- The Hip and Groin Clinic, UPMC
Whitfield, Waterford, Ireland,Department of Sports and Exercise
Science, Waterford Institute of Technology, Waterford, Ireland,Patrick F Carton, The Hip and Groin Clinic,
UPMC Whitfield, Butlerstown North, Cork Road, Waterford, Ireland.
| | - David J Filan
- The Hip and Groin Clinic, UPMC
Whitfield, Waterford, Ireland
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Kim CH, Lee SJ, Aditya K, Kim HY, Yoon KS, Yoon PW. Incidence of a stem sitting proud of a proximally coated cementless tapered wedge stem. J Orthop Translat 2019; 19:118-125. [PMID: 31844619 PMCID: PMC6896482 DOI: 10.1016/j.jot.2019.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 02/07/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND/OBJECTIVE A stem sitting proud (SP) or that above the final rasp position remains in some patients who undergo hip replacement using proximally coated tapered wedge stems. Surgeons may face challenges providing the best fit because of unpredictable SP of proximally coated tapered wedge stems. Zimmer Inc. introduced a new rasp to solve this issue but the clinical results of this rasp have not yet been published. Therefore, our aim was to address the following: (1) What is the stem SP incidence using a proximally coated cementless tapered wedge stem? (2) Does the new rasp system (0-mm rasp) improve seating height? and (3) What are the risk factors of stem SP? METHODS We performed a retrospective study with 338 hips, in which Tri-Lock Bone Preservation Stem (BPS) was used in 181 hips and M/L Taper stem was used in 157 hips (82 hips before and 75 hips after 0-mm rasp use). A positive stem SP was defined as a stem proud height of >2 mm. We analysed and compared SP incidence in two stems and M/L Taper stems before and after the 0-mm rasp use. RESULTS An incidence of stem SP was 13% in the Tri-Lock BPS and 15% in the M/L Taper stem before the 0-mm rasp use. Stem SP incidence in the M/L Taper stem substantially decreased after the 0-mm rasp use (4%). The significant risk factor for stem SP was use of the high offset option in Tri-Lock BPS. CONCLUSION The proximally coated tapered wedge stems present potential problems related to stem SP. The new rasp of the M/L Taper stem showed significant improvement in initial seating height. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE This study was conducted to understand "stem sitting proud" in proximally coated tapered wedge stem as one of the most popular designs nowadays in adult hip joint arthroplasty field. In this study, we aimed to address the incidence of stem proud, investigated the risk factor and introduced the effect of new rasp system which improve stem seating height.
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Affiliation(s)
- Chul-Ho Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro, 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - Soong Joon Lee
- Department of Orthopedic Surgery, Seoul National University Boramae Hospital, 20 Boramae-Ro 5-gil, Dongjak-gu, Seoul 156-707, South Korea
| | - Kekatpure Aditya
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro, 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - Ho Yeon Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro, 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - Kang Sup Yoon
- Department of Orthopedic Surgery, Seoul National University Boramae Hospital, 20 Boramae-Ro 5-gil, Dongjak-gu, Seoul 156-707, South Korea
| | - Pil Whan Yoon
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro, 43-gil, Songpa-gu, Seoul 05505, South Korea
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Blankenstein T, Grainger A, Dube B, Evans R, Robinson P. MRI hip findings in asymptomatic professional rugby players, ballet dancers, and age-matched controls. Clin Radiol 2019; 75:116-122. [PMID: 31582172 DOI: 10.1016/j.crad.2019.08.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 08/28/2019] [Indexed: 11/25/2022]
Abstract
AIM To investigate hip magnetic resonance imaging (MRI) findings in asymptomatic professional male rugby players and male ballet dancers compared to age-matched controls. MATERIALS AND METHODS After ethics committee approval and consent from participants, 11 professional rugby players, 10 professional ballet dancers, and 10 controls completed activity and symptom questionnaires and underwent 3 T MRI of their self-declared dominant hip. Each scan was independently scored by two musculoskeletal radiologists for multiple features, including: joint morphology, acetabular labrum appearance, cartilage loss, and capsular thickness. Clinical and MRI features were assessed for variance by group using one-way analysis of variance (ANOVA) tests and Tukey post-hoc pairwise comparison of means. RESULTS Labral tear prevalence was 87% with no significant difference between groups (p>0.05). Rates of paralabral cysts were significantly higher in ballet dancers (50%), compared to rugby players (0%) and controls (10%; p=0.01). Acetabular cartilage loss was present in 54% with no significant differences between groups. Superior capsular thickness was significantly greater in ballet dancers (5.3 mm) compared to rugby players (3.8 mm) and controls (3.8 mm; p=0.03). CONCLUSION Despite the difference in type of activity between groups, there were equally high rates of labral tears and acetabular cartilage loss, questioning the role that sport plays in the development of these findings and their relationship to symptoms. The focally increased superior capsular thickness in ballet dancers may be an adaptive response to extreme ranges of movement.
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Affiliation(s)
- T Blankenstein
- Musculoskeletal Centre X-Ray Department, Leeds Teaching Hospitals Trust, Chapel Allerton Hospital, Leeds, UK
| | - A Grainger
- Musculoskeletal Centre X-Ray Department, Leeds Teaching Hospitals Trust, Chapel Allerton Hospital, Leeds, UK; Leeds Musculoskeletal Biomedical Research Centre, University of Leeds, Leeds, UK
| | - B Dube
- Leeds Musculoskeletal Biomedical Research Centre, University of Leeds, Leeds, UK
| | - R Evans
- Leeds Musculoskeletal Biomedical Research Centre, University of Leeds, Leeds, UK
| | - P Robinson
- Musculoskeletal Centre X-Ray Department, Leeds Teaching Hospitals Trust, Chapel Allerton Hospital, Leeds, UK; Leeds Musculoskeletal Biomedical Research Centre, University of Leeds, Leeds, UK.
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48
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Sochacki KR, Jack RA, Hirase T, Vickery J, McCulloch PC, Lintner DM, Echo A, Harris JD. Performance and Return to Sport After Femoroacetabular Impingement Surgery in National Football League Players. Orthopedics 2019; 42:e423-e429. [PMID: 30964540 DOI: 10.3928/01477447-20190403-01] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/10/2018] [Indexed: 02/03/2023]
Abstract
The purpose of this study was to determine the (1) return-to-sport rate for National Football League (NFL) players following femoroacetabular impingement surgery, (2) postoperative career length and games per season, (3) pre- and postoperative performance, and (4) postoperative performance compared with control players matched by position, age, years of experience, and performance. National Football League athletes who underwent hip arthroscopy for femoroacetabular impingement and matched controls were identified. A Bonferroni correction was used to control for multiple comparisons, with statistical significance set at P≤.007. Fifty-five players (63 surgeries) were analyzed (mean age, 27.5±3.4 years; mean years in NFL at time of surgery, 4.7±2.9). Forty-seven (53 surgeries, 84.1%) NFL players returned to sport at a mean of 6.7±3.8 months following surgery. There was no difference (P>.007) in the mean career length of players in the control group (3.7±2.2 years) vs players who underwent hip arthroscopy (3.5±2.1 years). There was no difference (P>.007) in mean games played per season of players in the control group (12.5±3.1) vs those who underwent hip arthroscopy (12.1±4.0). Quarterbacks had significantly better postoperative performance scores when compared with post-index matched controls (P=.007). The return-to-sport rate is high for NFL athletes after hip arthroscopy for femoroacetabular impingement. There were similar games per season and career lengths postoperatively compared with preoperatively and matched controls. Quarterbacks had significantly better postoperative performance when compared with matched controls. All other positions had similar postoperative performance compared with preoperatively and matched controls. [Orthopedics. 2019; 42(5):e423-e429.].
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O'Brien LK, Schallmo MS, Stubbs AJ. Return to Sport Following Femoroacetabular Impingement Syndrome. OPER TECHN SPORT MED 2019. [DOI: 10.1053/j.otsm.2019.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
PURPOSE OF REVIEW Femoroacetabular impingement is a common cause of hip pain in young patients and has been shown to progress to osteoarthritis. The purpose of this review is to better understand the development of femoroacetabular impingement. RECENT FINDINGS Recent literature shows little genetic transmission of FAI. However, molecular studies show strong similarities with the cartilage in osteoarthritis. The development of cam lesions has a strong association with sports participation, particularly at the time of physeal closure suggesting abnormal development. Lumbar, pelvis, and femoral biomechanics may also play an important role in dynamic impingement. In summary, femoroacetabular impingement is a dynamic process with many influences. Further research is needed to clarify the pathophysiology of FAI development in hopes of finding preventative options to reduce symptoms and progression to osteoarthritis.
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Affiliation(s)
- W Jeffrey Grantham
- The Steadman Clinic, 181 West Meadow Drive, Suite 400, Vail, CO, 81657, USA
| | - Marc J Philippon
- The Steadman Clinic, 181 West Meadow Drive, Suite 400, Vail, CO, 81657, USA.
- Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA.
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