JBJS Open Access最新文献

{"title":"Intra-Articular Corrective Osteotomy for Distal Radial Intra-Articular Malunion Using Patient-Matched Instruments: A Prospective, Multicenter, Open-Label, Single-Arm Trial.","authors":"Kunihiro Oka, Satoshi Miyamura, Ryoya Shiode, Hiroyuki Tanaka, Norimasa Iwasaki, Daisuke Kawamura, Kazuki Sato, Takuji Iwamoto, Michiro Yamamoto, Keiichiro Nishida, Yasunori Shimamura, Tomomi Yamada, Seiji Okada, Tsuyoshi Murase","doi":"10.2106/JBJS.OA.24.00026","DOIUrl":"10.2106/JBJS.OA.24.00026","url":null,"abstract":"<p><strong>Background: </strong>Corrective osteotomy for intra-articular malunion is a challenging procedure. However, recent advancements, including patient-matched instruments created on the basis of preoperative computer simulation, enable accurate intra-articular correction. We hypothesized that intra-articular corrective osteotomy using patient-matched instruments for the treatment of distal radial intra-articular malunion would reduce intra-articular deformity and restore wrist function at 12 months of follow-up.</p><p><strong>Methods: </strong>This prospective study included 12 patients with distal radial intra-articular malunion who underwent intra-articular corrective osteotomy external to the joint using patient-matched instruments. The primary end point was the maximum step-off on the articular surface of the distal radius, measured with use of computed tomography (CT), with an expected postoperative value of ≤1.5 mm. The secondary end points included the gap of the articular surface; range of motion; grip strength; pain evaluated using a visual analog scale (VAS); patient satisfaction; Disabilities of the Arm, Shoulder and Hand (DASH) score; and Patient-Rated Wrist Evaluation (PRWE) score. A mean postoperative step-off of ≤1.5 mm for the primary end point was assessed with use of the 1-sample t test. The secondary end points were assessed with use of the Dunnett multiple comparison test.</p><p><strong>Results: </strong>The average step-off significantly improved from 3.75 ± 1.04 mm preoperatively to 0.51 ± 0.40 mm at the 52-week postoperative follow-up and was maintained within 1.5 mm. The average wrist and forearm range of motion, VAS score, grip strength, DASH score, and PRWE score significantly improved. Eleven patients were either very satisfied or satisfied with their outcomes.</p><p><strong>Conclusions: </strong>The use of patient-matched instruments could contribute to improving postoperative outcomes of intra-articular corrective osteotomy procedures involving the distal radius.</p><p><strong>Level of evidence: </strong>Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11328987/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142005492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predictors Associated with the Need for Open Reduction of Pediatric Supracondylar Humerus Fractures: A Meta-analysis of the Recent Literature.","authors":"M Bryant Transtrum, Diego Sanchez, Shauna Griffith, Brianna Godinez, Vishwajeet Singh, Kyle J Klahs, Amr Abdelgawad, Ahmed M Thabet","doi":"10.2106/JBJS.OA.24.00011","DOIUrl":"10.2106/JBJS.OA.24.00011","url":null,"abstract":"<p><strong>Background: </strong>Supracondylar humerus (SCH) fractures are some of the most common fractures in pediatric patients with surgery typically consisting of either open or closed reduction with internal fixation. The aim of this meta-analysis was to identify patient, injury, and administrative factors that are associated with treating pediatric SCH fractures with open techniques.</p><p><strong>Methods: </strong>Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, PubMed and CINAHL database searches were conducted for studies from 2010 to 2023 that made direct comparisons between open reduction and internal fixation (ORIF) and closed reduction and percutaneous pinning (CRPP) for treating SCH fractures in the pediatric population. The search terms used were \"pediatric\" AND \"SCH fracture\" OR \"distal humerus fracture.\" Screening, quality assessment, and data extraction were performed by 4 reviewers. After testing for heterogeneity between studies, data were aggregated using random-effects model analysis.</p><p><strong>Results: </strong>Forty-nine clinical studies were included in the meta-analysis. Summated, there were 94,415 patients: 11,329 treated with ORIF and 83,086 treated with CRPP. Factors that were significantly associated with greater rates of ORIF included obesity (p = 0.001), Gartland type IV fractures (p < 0.001), general neurological deficits (p = 0.019), and ulnar nerve deficits (p = 0.003). Gartland type II (p = 0.033) and medially displaced fractures (p = 0.011) were significantly associated with lower rates of ORIF. Secondary analysis showed cross-pinning constructs (p = 0.033) and longer hospital stays (p = 0.005) are more likely to be observed in patients undergoing ORIF compared with CRPP.</p><p><strong>Conclusion: </strong>This meta-analysis demonstrates that factors such as obesity, fracture displacement, and concomitant nerve deficits are more likely to require ORIF as opposed to CRPP.</p><p><strong>Level of evidence: </strong>Therapeutic Level III.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11299990/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141898534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revisiting Differences in Fourth-Year Orthopaedic Away Rotation Opportunities and Fees Among Allopathic and Osteopathic Medical Students.","authors":"Anthony Modica, Adam Kazimierczak, Brandon J Klein, Peter B White, Adam D Bitterman, Randy M Cohn","doi":"10.2106/JBJS.OA.24.00041","DOIUrl":"10.2106/JBJS.OA.24.00041","url":null,"abstract":"<p><strong>Introduction: </strong>Fourth-year away rotations are an important modifiable variable proven to increase students' opportunities to match into orthopaedic surgery. The purpose of this study was to determine differences in away rotation eligibility requirements and cost of rotation between allopathic and osteopathic students during the 2023 application cycle. Eligibility requirements and fees were then compared with the 2021 application cycle.</p><p><strong>Methods: </strong>A cross-sectional study was performed during the 2023 application cycle of all nonmilitary, Accreditation Council for Graduate Medical Education (ACGME)-accredited orthopaedic surgery residency programs (n = 194). Each program's website, affiliated school of medicine's website, visiting student application service portal, and Residency Explorer tool were searched for eligibility criteria, associated rotation fees, and other rotation requirements. Two-sample Z tests for proportions were utilized to compare differences in programs with differing requirements for students based on academic degree type. Data were compared statistically with previously reported data from the 2021 application cycle.</p><p><strong>Results: </strong>In 2023, there were more programs that restricted osteopathic medical students from away rotations than programs that restricted allopathic medical students (12/194, 6.2% vs. 0/194, 0.0%; p < 0.001). All 12 programs were formerly ACGME-accredited before the integration into a single accreditation system. There was a decrease in the number of programs restricting osteopathic medical students from away rotations compared with the 2021 application cycle (18/194, 9.3% vs. 12/194, 6.2%; p = 0.254). Fees associated with away rotations ranged from $25 to $4,000 for both allopathic and osteopathic students. The number of programs that charged osteopathic medical students higher rotation fees than programs that charged allopathic students when compared with the 2021 application cycles decreased (1/194, 0.5% vs. 5/194, 2.6%; p = 0.049).</p><p><strong>Conclusions: </strong>While some programs continue to have away rotation eligibility requirements that prohibit osteopathic medical students from rotating, only one residency program currently charges osteopathic medical students a higher fee to rotate than allopathic medical students.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11296481/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thompson Versus Judet Techniques for Quadricepsplasty: A Systematic Review and Meta-analysis of Outcomes and Complications.","authors":"Caroline T Gutowski, Kathryn Hedden, Parker Johnsen, John E Dibato, Christopher Rivera-Pintado, Kenneth Graf","doi":"10.2106/JBJS.OA.24.00040","DOIUrl":"10.2106/JBJS.OA.24.00040","url":null,"abstract":"<p><strong>Background: </strong>Quadricepsplasty has been used for over half a century to improve range of motion (ROM) in knees with severe arthrofibrosis. Various surgical techniques for quadricepsplasty exist, including Judet and Thompson, as well as novel minimally invasive approaches. The goal of this review was to compare outcomes between quadricepsplasty techniques for knee contractures.</p><p><strong>Methods: </strong>A systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Available databases were queried for all articles on quadricepsplasty. Outcomes included postoperative ROM, outcome scores, and complication rates. Secondarily, we summarized rehabilitation protocols and descriptions of all modified and novel techniques.</p><p><strong>Results: </strong>Thirty-three articles comprising 797 patients were included in final analysis. Thirty-five percent of patients underwent Thompson quadricepsplasty, 36% underwent Judet, and 29% underwent other techniques. After Judet and Thompson quadricepsplasty, patients achieved a mean postoperative active flexion of 92.7° and 106.4°, respectively (p < 0.01). Complication rates after Judet and Thompson were 17% and 24%, respectively. Wound infection was the most frequently recorded complication after Judet, whereas extension lag predominated for Thompson.</p><p><strong>Conclusion: </strong>Both the Thompson and Judet quadricepsplasty techniques offer successful treatment options to restore functional knee ROM. Although the Thompson technique resulted in greater postoperative knee flexion compared with the Judet, the difference may be attributable to differences in preoperative flexion and time from injury to quadricepsplasty. Overall, the difference in flexion gained between the 2 techniques is comparable and clinically negligible.</p><p><strong>Level of evidence: </strong>Level IV. See Instructions for Authors for a complete description of levels of evidence.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11286254/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141856697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gender Disparity in Authorship Among Orthopaedic Surgery Residents.","authors":"Elizabeth Cho, Mary V McCarthy, Victoria Hodkiewicz, Mia V Rumps, Mary K Mulcahey","doi":"10.2106/JBJS.OA.24.00061","DOIUrl":"10.2106/JBJS.OA.24.00061","url":null,"abstract":"<p><strong>Background: </strong>Gender disparity remains pervasive in orthopaedic surgery, which affects the research pursuits of orthopaedic surgeons. The purpose of this study was to characterize gender-related authorship trends of orthopaedic surgery residents, including evaluation of gender-concordant publication rates.</p><p><strong>Methods: </strong>An observational cross-sectional analysis of US orthopaedic surgery residency programs was performed. Information on residency programs and demographics of each cohort was collected. Publication metrics consisting of number of first and non-first author publications and H-indices were manually obtained for PGY-3 to PGY-5 residents attending the 25 programs ranked the highest for research output by Doximity. Gender of each resident and senior author was determined from institutional websites using photos, biographies, and preferred pronouns when available.</p><p><strong>Results: </strong>A total of 532 residents, 169 (31.8%) female and 363 (68.2%) male, were included for authorship analysis. Of them, 415 (78%) had at least one first author publication, which did not vary significantly by gender. Female residents had disproportionately fewer first author publications compared with their representation (22% vs. 31.8%, p < 0.00001). Female residents averaged fewer first and non-first author publications compared with male residents (2.8 vs. 4.6, p = 0.0003; 6.4 vs. 10, p = 0.0001 respectively). Despite fewer publications overall, a greater subset of publications by female residents were written in collaboration with a female senior author compared with publications by male residents (p < 0.0001). Male residents had a higher average H-index of 5.4 vs. 3.9 among female residents (p = 0.00007).</p><p><strong>Conclusion: </strong>Despite similar rates of first author publication among male and female residents, female residents had fewer publications overall, lower H-indices, and disproportionately fewer first author publications than would be expected given their representation. Findings from this study suggest that gender disparity in orthopaedic surgery extends to differences in research productivity as early as in residency. This may have negative implications on the career advancement of female orthopaedic surgeons. Additional work is needed to identify and understand biases in research productivity and career advancement, to promote more equitable strategies for academic achievement.</p><p><strong>Level of evidence: </strong>IV.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11262817/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141753025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantification of Radiation Exposure in Canadian Orthopaedic Surgery Residents.","authors":"","doi":"10.2106/JBJS.OA.23.00170","DOIUrl":"10.2106/JBJS.OA.23.00170","url":null,"abstract":"<p><strong>Introduction: </strong>Natural radiation exposure in the general population averages 3 milliSieverts (mSv) annually; however, radiation exposure in orthopaedic residents is not well defined. Despite protective measures, evidence of radiation-related diseases in orthopaedic surgeons is increasing. The purpose of this study was to quantify radiation exposure in orthopaedic residents and to determine the variability of exposure among post graduate year (PGY) of residency.</p><p><strong>Methods: </strong>Monthly radiation exposure was measured prospectively over a 12-month period in orthopaedic surgery residents from a single program. Participants wore dosimeters above (\"exposed\") and beneath (\"shielded\") protective lead. The primary outcome measure was the absolute value of radiation exposure in mSv. Repeated measures analysis was used to assess exposure with age, sex, year of training, operating room (OR) days, and height.</p><p><strong>Results: </strong>Mean annual occupational radiation exposure was 3.30 ± 0.64 mSv over an average of 107 ± 38 OR days. Mean exposure per OR day was 0.033 ± 0.008 mSv. PGY-2 and PGY-3 residents had the highest cumulative exposure, and PGY-5 residents had the highest mean exposure per OR day (0.044 ± 0.009 mSv/d). Number of OR days per month and PGY level were significant predictors of radiation exposure (p < 0.05). Sex, age, and height were not significant in predicting radiation of the exposed dosimeter.</p><p><strong>Conclusions: </strong>Orthopaedic residents' exposure to radiation is nearly twice the general population's exposure. Given that yearly radiation exposure was highest during early residency years, but exposure based on number of OR days was highest in the final year of training, it is essential for resident education regarding radiation safety and safe clinical practices throughout their training.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11257669/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141735243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current Procedural Terminology Code Selection, Attitudes, and Practices of the Orthopaedic Surgery Resident Case Log: A Survey of Residents and Program Directors.","authors":"Matthew Dulas, Thomas J Utset-Ward, Jason A Strelzow, Tessa Balach","doi":"10.2106/JBJS.OA.23.00176","DOIUrl":"10.2106/JBJS.OA.23.00176","url":null,"abstract":"<p><strong>Introduction: </strong>The Accreditation Council for Graduate Medical Education Resident Case Log is one of the primary tools used to track surgical experience. Owing to the self-reported nature of case logging, there is uncertainty in the consistency and accuracy of case logging. The aims of this study are two-fold: to assess current resident case log Current Procedural Terminology (CPT) code selection and practices across orthopaedic surgery residencies and to understand current attitudes of both program directors (PD) and residents surrounding case logging.</p><p><strong>Methods: </strong>Residents and PDs from 18 residency programs received standardized, consensus-built surveys distributed through the Collaborative Orthopaedic Educational Research Group. Resident surveys additionally contained clinical orthopaedic subspecialties vignettes on sports, trauma, and spine. Each subspecialty section contained 4 clinical vignettes with stepwise increases in complexity/CPT coding procedures.</p><p><strong>Results: </strong>One hundred sixteen residents (response rate: 28.4%) and 16 PDs (response rate: 88.9%) participated. Formal case log training was reported by 53.0% of residents and 56.3% of PDs. A total of 7.8% of residents rated themselves \"excellent\" at applying CPT codes for the case log, while 0.0% PDs rated their residents' ability as \"excellent.\" In total, 40.9% of residents and 81.3% of PDs responded that it was \"extremely important\" or \"very important\" to code accurately (p = 0.006). Agreement between resident CPT code selection and number of cases and procedures logged for each clinical vignette was conducted using Fleiss' kappa. As the clinical vignettes increased in complexity, there was a decreasing trend in kappa values from the first (least complex) to the last (most complex) clinical vignette.</p><p><strong>Conclusions: </strong>The inconsistent case logging practices, dubious outlook on case log accuracy and resident case logging ability and attitude, and lack of formal training signals a need for formal, standardized case log training. Enhanced case logging instruction and formalized educational training for PDs and residents would be a meaningful step toward capturing true operative experience, which would have a substantial impact on orthopaedic surgery resident education and assessment.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11257661/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141735242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Surgical Skills Rotation for Mid-Level Residents.","authors":"Lanchi B Nguyen, Steven A Long, Ericka A Lawler, Matthew D Karam","doi":"10.2106/JBJS.OA.24.00036","DOIUrl":"10.2106/JBJS.OA.24.00036","url":null,"abstract":"<p><strong>Introduction: </strong>The University of Iowa orthopaedic residency previously designed a month-long surgical skill rotation for postgraduate year (PGY)-1 residents. This successful initiative has become a model of interest for other teaching institutions. In addition to the intern year, an important phase in residency occurs during the transition from PGY2 to PGY3, when residents assume greater responsibility and autonomy in leading surgical procedures.</p><p><strong>Methods: </strong>To directly address this transition and assess residents' readiness, our residency program established a week-long PGY2 surgical skills rotation. This rotation serves as a training checkpoint and focuses on both training and evaluation of level-appropriate skills in joint arthroplasty, trauma, arthroscopy, and wire navigation. The primary objective of the PGY2 surgical skills rotation is to enhance orthopaedic residents' operative skills and experience by providing increased exposure and practice of requisite technical skills. Similar to the Orthopedic In-Training Examinations that assess residents' knowledge, this week-long program, aimed at assessing residents' proficiency in fundamental orthopaedic technical skills, occurs before their PGY3 year.</p><p><strong>Results: </strong>Faculty-led training and assessment sessions in each area offer residents many opportunities for dedicated practice and improvement. Transferring these acquired skills from the laboratory to the operating room is essential for a training program. To confirm improvement, the final day of the surgical skills rotation was exclusively dedicated to structured performance evaluations, with a specific emphasis on establishing proficiency benchmarks.</p><p><strong>Conclusion: </strong>We herein describe the University of Iowa's PGY2 surgical skills rotation, providing insights into its development, implementation, and outcomes. By sharing our experience, we offer a framework for other academic departments seeking to optimize surgical skills education and ensure the successful transition of mid-level residents.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11251679/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141634821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Defining and Differentiating Congenital Vertical Talus and Congenital Oblique Talus: It's Not Primarily About the Talus.","authors":"Vincent S Mosca, Dhiren Ganjwala, Hitesh Shah","doi":"10.2106/JBJS.OA.24.00014","DOIUrl":"10.2106/JBJS.OA.24.00014","url":null,"abstract":"<p><strong>Background: </strong>Congenital vertical talus (CVT) and congenital oblique talus (COT) are rocker-bottom foot deformities that have similar names and no objective definitions. This has led to confusion for practitioners, as well as scientific challenges for researchers. Our goal was to provide objective radiographic criteria to define and differentiate CVT and COT.</p><p><strong>Methods: </strong>We evaluated 62 pairs of maximum dorsiflexion and plantar flexion lateral radiographs of infant feet that had been clinically diagnosed with CVT. The dorsiflexion tibiotalar angle, the plantar flexion talus-first metatarsal angle, and the plantar flexion foot center of rotation of angulation (foot-CORA) were measured using transparent overlay tools. Freehand measurements were made on a subset of 10 pairs of radiographs to confirm clinical applicability. Nine contralateral pairs of radiographs of normal feet were measured for comparison.</p><p><strong>Results: </strong>Specific values for the radiographic measurements were identified that, together, reliably differentiated the shapes of rocker-bottom feet with CVT, COT, and flexible flatfoot with a short tendo-Achilles (FFF-STA), as well as the shape of the normal foot. More severe and rigid rocker-bottom foot deformities were diagnosed with CVT. Less severe and more flexible deformities were diagnosed with COT.</p><p><strong>Conclusions: </strong>CVT, COT, FFF-STA, and normal feet can be reliably differentiated using 2 angular measurements and 1 bone position measurement on dorsiflexion and plantar flexion lateral radiographs. Our data indicated that the differentiation of CVT and COT is based primarily on the rigidity of the navicular dislocation rather than the verticality of the talus. The data further supported the proposition that COT is a foot deformity along a spectrum of valgus/eversion deformities of the hindfoot that requires early treatment. Application of these diagnostic criteria should lead to clinical studies that identify a specific treatment, treatment outcome, and prognosis for each deformity.</p><p><strong>Level of evidence: </strong>Diagnostic Level II. See Instructions for Authors for a complete description of levels of evidence.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11236389/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141591612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Relationship of Cup Inclination and Anteversion in the Coronal Plane with Ante-Inclination in the Sagittal Plane: Exposing the Fallacy of Cup Safe Zones.","authors":"Moritz M Innmann, Christian Merle, Akaash Ratra, Andrew Speirs, Andrew Adamczyk, David Murray, Harinderjit S Gill, George Grammatopoulos","doi":"10.2106/JBJS.OA.23.00120","DOIUrl":"10.2106/JBJS.OA.23.00120","url":null,"abstract":"<p><strong>Background: </strong>This study aimed to establish an equation for calculating cup ante-inclination (AI) from radiographic cup inclination and anteversion, to validate this equation in a total hip arthroplasty (THA) cohort, and to test whether achieving previously described radiographic cup inclination and anteversion targets would also satisfy sagittal cup AI targets.</p><p><strong>Methods: </strong>A mathematical equation linking cup AI, radiographic inclination (RI), and anteversion (RA) was determined: tan(AI) = tan(RA)/cos(RI). Supine and standing anteroposterior and lateral radiographs of 440 consecutive THAs were assessed to measure cup RI and RA and spinopelvic parameters, including cup AI, using a validated software tool. Whether orientation within previously defined RI and RA targets was associated with achieving the AI target and satisfying the sagittal component orientation (combined sagittal index, 205° to 245°) was tested.</p><p><strong>Results: </strong>The cups in the THA cohort had a measured mean inclination (and standard deviation) of 43° ± 7°, anteversion of 26° ± 9°, and AI of 34° ± 10°. The calculated cup AI was 34° ± 12°. A strong correlation existed between measured and calculated AI (r = 0.75; p < 0.001), with a mean error of 0° ± 8°. The inclination and anteversion targets were both satisfied in 194 (44.1%) to 330 (75.0%) of the cases, depending on the safe zone targets that were used, and 311 cases (70.7%) satisfied the AI target. Only 125 (28.4%) to 233 (53.0%) of the cases satisfied the AI target as well as the inclination and anteversion targets. Satisfying inclination and anteversion targets was not associated with increased chances of satisfying the AI target.</p><p><strong>Conclusions: </strong>Achieving optimal cup inclination and anteversion does not ensure optimal orientation in the sagittal plane. The equation and nomograms provided can be used to determine and visualize how the 2 planes used for evaluating the cup orientation and the pertinent angles relate, potentially aiding in preoperative planning.</p>","PeriodicalId":36492,"journal":{"name":"JBJS Open Access","volume":"9 3","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11236406/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141591613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}