Pub Date : 2025-03-06DOI: 10.1097/CORR.0000000000003439
Paul J Dougherty
{"title":"CORR® Curriculum-Orthopaedic Education: How Should Residents Be Using Research Protected Time for Scholarly Activities?","authors":"Paul J Dougherty","doi":"10.1097/CORR.0000000000003439","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003439","url":null,"abstract":"","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
<p><strong>Background: </strong>Periacetabular osteotomy (PAO) treats developmental dysplasia of the hip (DDH) by reducing load on the hip and improving joint function. Untreated DDH affects lower extremity alignment and alters knee morphology, with valgus alignment more pronounced in hip osteoarthritis secondary to DDH. While PAO may influence knee mechanics, its association with subchondral bone density in the tibiofemoral joint remains unclear.</p><p><strong>Questions/purposes: </strong>(1) To what degree is PAO associated with changes in the distribution of subchondral bone density in the knees of patients with DDH? (2) Is PAO associated with altered subchondral bone density distribution in patients with DDH such that they more closely resemble a control cohort of patients?</p><p><strong>Methods: </strong>We conducted a retrospective chart review to evaluate the association of PAO with knees in female patients with DDH. From January 2015 to December 2021, 69 patients (≤ 49 years of age, center-edge angle ≤ 25°) underwent PAO. Of these, 38% (26) of patients were included after excluding patients for bilateral operations, lack of follow-up, or incomplete CT data. A power analysis required at least 20 hips per group based on the past study. For comparison, we reviewed 63 patients undergoing joint-preserving surgery for idiopathic osteonecrosis from January 2014 to December 2024, with 32% (20) of female patients meeting criteria (unilateral hip necrosis only) for the control group. PAO resulted in sufficient acetabular coverage and improved clinical scores in patients. Importantly, no change in lower limb alignment was observed postoperatively. The distribution and quantification of subchondral bone density in the proximal tibial articular surface were measured using CT osteoabsorptiometry (CT-OAM). This was achieved by assessing radiodensity variations in Hounsfield units (HUs) and mapping these as two-dimensional visualizations. The high-density area within these regions was defined as the top 20% of HUs. The medial and lateral tibial compartments were divided into three subregions of equal width in the coronal direction: lateral-lateral, lateral-central, lateral-medial, medial-medial, medial-central, and medial-lateral. Each subregion percentage represented by the high-density area was calculated (percentage of high-density area). Our primary study goal was to evaluate the association of PAO with changes in subchondral bone density distribution in the knees of patients with DDH. To achieve this, we utilized CT-OAM to map subchondral bone density patterns before and after surgery. Our secondary study goal was to determine whether PAO results in a subchondral bone density distribution in patients with DDH that more closely resembles that of a control cohort without DDH. For this goal, we analyzed radiographic and CT data to identify changes in high-density areas across tibial plateaus and compared preoperative and postoperative results within th
{"title":"Does Periacetabular Osteotomy Affect the Load Distribution on the Knee?","authors":"Yuki Ogawa, Tomohiro Shimizu, Shunichi Yokota, Daisuke Takahashi, Norimasa Iwasaki","doi":"10.1097/CORR.0000000000003453","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003453","url":null,"abstract":"<p><strong>Background: </strong>Periacetabular osteotomy (PAO) treats developmental dysplasia of the hip (DDH) by reducing load on the hip and improving joint function. Untreated DDH affects lower extremity alignment and alters knee morphology, with valgus alignment more pronounced in hip osteoarthritis secondary to DDH. While PAO may influence knee mechanics, its association with subchondral bone density in the tibiofemoral joint remains unclear.</p><p><strong>Questions/purposes: </strong>(1) To what degree is PAO associated with changes in the distribution of subchondral bone density in the knees of patients with DDH? (2) Is PAO associated with altered subchondral bone density distribution in patients with DDH such that they more closely resemble a control cohort of patients?</p><p><strong>Methods: </strong>We conducted a retrospective chart review to evaluate the association of PAO with knees in female patients with DDH. From January 2015 to December 2021, 69 patients (≤ 49 years of age, center-edge angle ≤ 25°) underwent PAO. Of these, 38% (26) of patients were included after excluding patients for bilateral operations, lack of follow-up, or incomplete CT data. A power analysis required at least 20 hips per group based on the past study. For comparison, we reviewed 63 patients undergoing joint-preserving surgery for idiopathic osteonecrosis from January 2014 to December 2024, with 32% (20) of female patients meeting criteria (unilateral hip necrosis only) for the control group. PAO resulted in sufficient acetabular coverage and improved clinical scores in patients. Importantly, no change in lower limb alignment was observed postoperatively. The distribution and quantification of subchondral bone density in the proximal tibial articular surface were measured using CT osteoabsorptiometry (CT-OAM). This was achieved by assessing radiodensity variations in Hounsfield units (HUs) and mapping these as two-dimensional visualizations. The high-density area within these regions was defined as the top 20% of HUs. The medial and lateral tibial compartments were divided into three subregions of equal width in the coronal direction: lateral-lateral, lateral-central, lateral-medial, medial-medial, medial-central, and medial-lateral. Each subregion percentage represented by the high-density area was calculated (percentage of high-density area). Our primary study goal was to evaluate the association of PAO with changes in subchondral bone density distribution in the knees of patients with DDH. To achieve this, we utilized CT-OAM to map subchondral bone density patterns before and after surgery. Our secondary study goal was to determine whether PAO results in a subchondral bone density distribution in patients with DDH that more closely resembles that of a control cohort without DDH. For this goal, we analyzed radiographic and CT data to identify changes in high-density areas across tibial plateaus and compared preoperative and postoperative results within th","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-05DOI: 10.1097/CORR.0000000000003445
Travis Haber, Rana S Hinman, Michelle Hall, Belinda J Lawford, Shiyi Julia Zhu, Samantha Bunzli, Clare Jinks, Mary O'Keeffe, Fiona Dobson
<p><strong>Background: </strong>Depending on how clinicians label and explain hip pain, patients may form different beliefs about hip pain and its management. When clinicians describe hip pain as a problem of passive "wear and tear," patients may be more likely to believe that surgery is needed to "fix" hip pain than if it were explained as a dynamic, whole-joint condition or as a biopsychosocial problem. A qualitative study could inform health professionals on how to provide information about hip pain that meets patients' expectations for information while also guiding them to use recommended nonsurgical care.</p><p><strong>Questions/purposes: </strong>Qualitative methodology was used to explore: (1) how adults with hip pain perceive different diagnostic labels and explanations relating to the treatment of hip pain and (2) whether the different labels and explanations satisfy their expectations for diagnostic information.</p><p><strong>Methods: </strong>This was a qualitative study using individual, semistructured interviews with an interview guide. Participants were recruited from metropolitan and rural Australia by social media advertising. Participants self-reported activity-related hip pain on most days in the past 3 months, were 45 years of age or older, and read and spoke in English. We sought to purposively sample a range of educational and health literacy levels. We interviewed 18 adults with hip pain (mean ± SD age was 64 ± 7 years, 13 of 18 patients were women) via video conferencing or telephone (based on preference). The labels and explanations were (1) hip osteoarthritis (explaining it as a dynamic, whole-joint condition), (2) persistent hip pain (explaining it as a biopsychosocial problem), and (3) hip degeneration (explaining it as passive wear and tear). Interviews were audio recorded and transcribed verbatim. Participants engaged in a think-aloud activity, in which we asked them to share their thoughts about three diagnostic labels and explanations as they read the relevant written information. Reflexive thematic analysis was used to analyze the data. This involved two authors first coding and identifying early themes in the data relating to our research questions (treatment beliefs relating to, and satisfaction with, information). Interpretations of data, including codes and themes, were discussed, challenged, and finalized through discussions among the research team. We ceased recruitment when we believed that our data set reached thematic saturation-that is, when it provided a sufficient understanding of our research question and the latest round of data collection had not led to substantial theme development or new themes.</p><p><strong>Results: </strong>Participants varied in how they perceived different diagnostic labels and explanations for hip pain, informing wide-ranging treatment beliefs. For diagnostic labels of hip osteoarthritis and hip degeneration, they expressed preexisting beliefs that certain exercises (such as
{"title":"How Do Individuals Perceive Diagnostic Labels and Explanations for Hip Pain? A Qualitative Study Among Adults With Persistent Hip Pain.","authors":"Travis Haber, Rana S Hinman, Michelle Hall, Belinda J Lawford, Shiyi Julia Zhu, Samantha Bunzli, Clare Jinks, Mary O'Keeffe, Fiona Dobson","doi":"10.1097/CORR.0000000000003445","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003445","url":null,"abstract":"<p><strong>Background: </strong>Depending on how clinicians label and explain hip pain, patients may form different beliefs about hip pain and its management. When clinicians describe hip pain as a problem of passive \"wear and tear,\" patients may be more likely to believe that surgery is needed to \"fix\" hip pain than if it were explained as a dynamic, whole-joint condition or as a biopsychosocial problem. A qualitative study could inform health professionals on how to provide information about hip pain that meets patients' expectations for information while also guiding them to use recommended nonsurgical care.</p><p><strong>Questions/purposes: </strong>Qualitative methodology was used to explore: (1) how adults with hip pain perceive different diagnostic labels and explanations relating to the treatment of hip pain and (2) whether the different labels and explanations satisfy their expectations for diagnostic information.</p><p><strong>Methods: </strong>This was a qualitative study using individual, semistructured interviews with an interview guide. Participants were recruited from metropolitan and rural Australia by social media advertising. Participants self-reported activity-related hip pain on most days in the past 3 months, were 45 years of age or older, and read and spoke in English. We sought to purposively sample a range of educational and health literacy levels. We interviewed 18 adults with hip pain (mean ± SD age was 64 ± 7 years, 13 of 18 patients were women) via video conferencing or telephone (based on preference). The labels and explanations were (1) hip osteoarthritis (explaining it as a dynamic, whole-joint condition), (2) persistent hip pain (explaining it as a biopsychosocial problem), and (3) hip degeneration (explaining it as passive wear and tear). Interviews were audio recorded and transcribed verbatim. Participants engaged in a think-aloud activity, in which we asked them to share their thoughts about three diagnostic labels and explanations as they read the relevant written information. Reflexive thematic analysis was used to analyze the data. This involved two authors first coding and identifying early themes in the data relating to our research questions (treatment beliefs relating to, and satisfaction with, information). Interpretations of data, including codes and themes, were discussed, challenged, and finalized through discussions among the research team. We ceased recruitment when we believed that our data set reached thematic saturation-that is, when it provided a sufficient understanding of our research question and the latest round of data collection had not led to substantial theme development or new themes.</p><p><strong>Results: </strong>Participants varied in how they perceived different diagnostic labels and explanations for hip pain, informing wide-ranging treatment beliefs. For diagnostic labels of hip osteoarthritis and hip degeneration, they expressed preexisting beliefs that certain exercises (such as","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-05DOI: 10.1097/CORR.0000000000003451
Pietro Ruggieri
{"title":"CORR Insights®: How to Improve Patient Selection in Individuals With Lower Extremity Amputation Using a Bone-anchored Prosthesis.","authors":"Pietro Ruggieri","doi":"10.1097/CORR.0000000000003451","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003451","url":null,"abstract":"","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-05DOI: 10.1097/CORR.0000000000003452
John J Faillace
{"title":"CORR Insights®: Total Arthroplasty Versus Trapeziectomy With Ligamentoplasty for Trapeziometacarpal Osteoarthritis: 5-year Outcomes.","authors":"John J Faillace","doi":"10.1097/CORR.0000000000003452","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003452","url":null,"abstract":"","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-04DOI: 10.1097/CORR.0000000000003443
Amanda Mener
{"title":"CORR Insights®: CD177, MYBL2, and RRM2 Are Potential Biomarkers for Musculoskeletal Infections.","authors":"Amanda Mener","doi":"10.1097/CORR.0000000000003443","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003443","url":null,"abstract":"","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-04DOI: 10.1097/CORR.0000000000003444
David A Kolin
{"title":"CORR Insights®: What Are the Minimum Clinically Important Difference, Substantial Clinical Benefit, and Patient-Acceptable Symptom State Thresholds for the Modified Harris Hip Score and International Hip Outcome Tool 12 Among Patients Who Undergo Periacetabular Osteotomy?","authors":"David A Kolin","doi":"10.1097/CORR.0000000000003444","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003444","url":null,"abstract":"","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-04DOI: 10.1097/CORR.0000000000003431
Joseph Bernstein
{"title":"Not the Last Word: A Joint Registry for Resident Selection.","authors":"Joseph Bernstein","doi":"10.1097/CORR.0000000000003431","DOIUrl":"https://doi.org/10.1097/CORR.0000000000003431","url":null,"abstract":"","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-01Epub Date: 2024-10-15DOI: 10.1097/CORR.0000000000003281
Betsy McAllister Nolan
{"title":"CORR Insights®: No Short-term Clinical Benefit to Bovine Collagen Implant Augmentation in Primary Rotator Cuff Repair: A Matched Retrospective Study.","authors":"Betsy McAllister Nolan","doi":"10.1097/CORR.0000000000003281","DOIUrl":"10.1097/CORR.0000000000003281","url":null,"abstract":"","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":"453-454"},"PeriodicalIF":4.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11828010/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142459571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-01Epub Date: 2024-11-05DOI: 10.1097/CORR.0000000000003288
Kevin Arribart, Valentin Peryoitte, Anton Kaniewski, Xavier Bonnet, Hélène Pillet
<p><strong>Background: </strong>A hip flexion contracture (HFC) results in an inability to extend the hip by reducing the ROM of the affected hip. The condition affects one in four patients with above-knee amputations on the amputation side. While HFC in other disorders is known to decrease hip ROM and increase pelvic tilt during gait, its impact on the gait of patients with above-knee amputations remains unexplored. Typically, prosthetists design the socket with a flexion angle matching the HFC, potentially leading to compensations during the posterior stance phase of the gait cycle. To our knowledge, little is known about how or whether these compensations relate to the socket's flexion alignment.</p><p><strong>Questions/purposes: </strong>(1) Is the presence of HFC associated with modifications of spatiotemporal and kinematic parameters during gait in patients with an above-knee amputation? (2) Is there a correlation between the socket flexion angle and the spatiotemporal and kinematic parameters during gait in patients with an above-knee amputation with and without HFC?</p><p><strong>Methods: </strong>A comparative observational study was conducted between February 2022 and June 2023. Thirty-two participants with unilateral above-knee amputations who had undergone amputation at least 1 year prior and had a minimum of 1 month of experience with their current prostheses were eligible for consideration and included in the study. After the trial, 1 of 32 participants was excluded due to other impairments affecting gait, and 9% (3 of 32) were excluded because of pain or discomfort during data acquisition on their gait, leaving 88% (28 of 32) of participants included in the analysis. The median (IQR) age of participants in the HFC group (n = 13) was 50 years (26 to 56); 85% (11) were male and 15% (2) were female. The median (IQR) age of participants in the noHFC group (n = 15) was 41 years (32 to 56), and 100% were male. Time since amputation was similar between groups (HFC median 8 years [IQR 3 to 21], noHFC median 6 years [IQR 1 to 9], difference of medians 2; p = 0.31). Thirty-two percent (9 of 28) of patients were classified according to the Medicare Functional Classification Level system as K4 (exceeding basic ambulation skills) and 68% (19 of 28) were classified as K3 (ability to walk with variable cadence and traverse most environmental barriers). Clinical and prosthetic measurements were made, which comprised measurement of the HFC using a hand-held goniometer with the patient in the modified Thomas test position, the socket flexion alignment, and the difference (δ) between the HFC and socket flexion alignment. A gait analysis was performed with an optoelectronic system equipped with six infrared cameras and two force plates to analyze the time-distance and kinematic parameters of gait. To answer our first question, we quantitively compared the gait spatiotemporal and kinematic parameters between groups, and for the second question, we eval
{"title":"Is Socket Flexion Alignment Associated With Changes in Gait Parameters in Individuals With an Above-knee Amputation and a Hip Flexion Contracture?","authors":"Kevin Arribart, Valentin Peryoitte, Anton Kaniewski, Xavier Bonnet, Hélène Pillet","doi":"10.1097/CORR.0000000000003288","DOIUrl":"10.1097/CORR.0000000000003288","url":null,"abstract":"<p><strong>Background: </strong>A hip flexion contracture (HFC) results in an inability to extend the hip by reducing the ROM of the affected hip. The condition affects one in four patients with above-knee amputations on the amputation side. While HFC in other disorders is known to decrease hip ROM and increase pelvic tilt during gait, its impact on the gait of patients with above-knee amputations remains unexplored. Typically, prosthetists design the socket with a flexion angle matching the HFC, potentially leading to compensations during the posterior stance phase of the gait cycle. To our knowledge, little is known about how or whether these compensations relate to the socket's flexion alignment.</p><p><strong>Questions/purposes: </strong>(1) Is the presence of HFC associated with modifications of spatiotemporal and kinematic parameters during gait in patients with an above-knee amputation? (2) Is there a correlation between the socket flexion angle and the spatiotemporal and kinematic parameters during gait in patients with an above-knee amputation with and without HFC?</p><p><strong>Methods: </strong>A comparative observational study was conducted between February 2022 and June 2023. Thirty-two participants with unilateral above-knee amputations who had undergone amputation at least 1 year prior and had a minimum of 1 month of experience with their current prostheses were eligible for consideration and included in the study. After the trial, 1 of 32 participants was excluded due to other impairments affecting gait, and 9% (3 of 32) were excluded because of pain or discomfort during data acquisition on their gait, leaving 88% (28 of 32) of participants included in the analysis. The median (IQR) age of participants in the HFC group (n = 13) was 50 years (26 to 56); 85% (11) were male and 15% (2) were female. The median (IQR) age of participants in the noHFC group (n = 15) was 41 years (32 to 56), and 100% were male. Time since amputation was similar between groups (HFC median 8 years [IQR 3 to 21], noHFC median 6 years [IQR 1 to 9], difference of medians 2; p = 0.31). Thirty-two percent (9 of 28) of patients were classified according to the Medicare Functional Classification Level system as K4 (exceeding basic ambulation skills) and 68% (19 of 28) were classified as K3 (ability to walk with variable cadence and traverse most environmental barriers). Clinical and prosthetic measurements were made, which comprised measurement of the HFC using a hand-held goniometer with the patient in the modified Thomas test position, the socket flexion alignment, and the difference (δ) between the HFC and socket flexion alignment. A gait analysis was performed with an optoelectronic system equipped with six infrared cameras and two force plates to analyze the time-distance and kinematic parameters of gait. To answer our first question, we quantitively compared the gait spatiotemporal and kinematic parameters between groups, and for the second question, we eval","PeriodicalId":10404,"journal":{"name":"Clinical Orthopaedics and Related Research®","volume":" ","pages":"535-546"},"PeriodicalIF":4.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11828000/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142582350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：