Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-06-14DOI: 10.1016/j.arth.2024.06.015
Terence L Thomas, Sanjeev Rampam, Pravarut Nithagon, Graham S Goh
{"title":"Increased Risk of Postoperative Complications in Patients Who Have Obstructive Sleep Apnea Undergoing Total Joint Arthroplasty: A Systematic Review and Meta-Analysis.","authors":"Terence L Thomas, Sanjeev Rampam, Pravarut Nithagon, Graham S Goh","doi":"10.1016/j.arth.2024.06.015","DOIUrl":"10.1016/j.arth.2024.06.015","url":null,"abstract":"<p><strong>Background: </strong>Obstructive sleep apnea (OSA) has been linked to multiple adverse health outcomes and postoperative complications. Despite the high prevalence of OSA in patients undergoing total joint arthroplasty (TJA), few studies have evaluated the postoperative course of OSA patients after joint arthroplasty surgery.</p><p><strong>Methods: </strong>PubMed (MEDLINE) and Scopus (EMBASE, MEDLINE, and COMPENDEX) were used to conduct a systematic review of articles from inception to July 2023. Primary studies comparing postoperative outcomes following TJA between patients who had and did not have OSA were included. Postoperative medical complications, utilization of critical care, hospital stay, and mortality data were extracted. Descriptive statistics and random-effects meta-analysis models were used to analyze the available data. Included studies were evaluated for methodological risks of bias using the risk of bias in non-randomized studies of interventions. This review was registered on the International Prospective Register of Systematic Reviews (ID: CRD42023447610).</p><p><strong>Results: </strong>There were 7 studies with a total of 20,977 patients (9,425 hip; 11,137 knee; 415 hip or knee) that were included. Pulmonary complications were most frequently studied, followed by thromboembolic events. Cardiac, gastrointestinal, hematologic, genitourinary, and delirium events were also reported across studies. Meta-analysis revealed that OSA patients had 4-fold increased odds of overall medical complications (OR [odds ratio], 4.23; 95% confidence interval (CI), 2.97 to 6.04; P < .001; I<sup>2</sup> = 0%), 4-fold increased odds of pulmonary complications (OR, 4.31; 95% CI, 2.82 to 6.60; P < .001; I<sup>2</sup> = 0%), 2-fold increased odds of thromboembolic complications (OR, 1.92; 95% CI, 1.22 to 3.03; P = .005; I<sup>2</sup> = 9%), and 4-fold increased odds of delirium (OR, 3.94; 95% CI, 1.72 to 9.04; P = .001; I<sup>2</sup> = 0%).</p><p><strong>Conclusions: </strong>A significant association was found between OSA and overall medical, pulmonary, and thromboembolic complications. These patients also had a higher incidence of postoperative delirium. The present findings underscore the need for comprehensive perioperative strategies to mitigate these risks in OSA patients who elect to undergo TJA.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332416","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-06-18DOI: 10.1016/j.arth.2024.06.021
Ramish Sumbal, Mudassir Abbas, Samir Mustafa Sheikh, Anusha Sumbal
{"title":"Prevalence and Clinical Impact of Sarcopenia in Patients Undergoing Total Joint Arthroplasty: A Systematic Review and a Meta-Analysis.","authors":"Ramish Sumbal, Mudassir Abbas, Samir Mustafa Sheikh, Anusha Sumbal","doi":"10.1016/j.arth.2024.06.021","DOIUrl":"10.1016/j.arth.2024.06.021","url":null,"abstract":"<p><strong>Background: </strong>Sarcopenia is a progressive loss of skeletal muscle mass and function. It is associated with adverse outcomes after several orthopaedic procedures. However, its role in total joint arthroplasty (TJA) is not fully explored. Therefore, we wanted to conduct a systematic review and meta-analysis to answer the following questions: (1) What is the prevalence of sarcopenia in patients undergoing TJA?; (2) What factors are associated with the prevalence of sarcopenia in patients undergoing TJA?; What is the impact of sarcopenia on medical outcomes following TJA?; and (4) What is the impact of sarcopenia on surgical outcomes following TJA?</p><p><strong>Methods: </strong>Electronic databases PubMed, Scopus, Cochrane, and Google Scholar were searched. The data were pooled using the random-effects model and graphically represented by a forest plot. We included a total of 13 studies, evaluating 399,097 patients.</p><p><strong>Results: </strong>The pooled prevalence of sarcopenia was 20.1% (95% confidence interval [CI] 13.6 to 28.8%; P < .00001; I<sup>2</sup> = 94.7%) in total knee arthroplasty (TKA) and 5.2% (95% CI 0.1 to 69.7%; P = .128; I<sup>2</sup> = 99.6%) in total hip arthroplasty (THA). Meta-regression found no links between age, sex, body mass index, diabetes, obesity, arthroplasty type, and sarcopenia prevalence in TJA. Sarcopenia increased risk of blood transfusion (odds ratio [OR] 4.68 [95% CI 3.51 to 6.25]; P < .00001), pneumonia (OR 1.94 [95% CI 1.14 to 3.30]; P = .01), urinary tract infection (UTI) (OR 1.64 [95% CI 1.31 to 2.05]; P < .001), prosthetic fracture (OR 2.12 [95% CI 1.51 to 2.98]; P < .0001), prosthetic dislocation (OR 1.99 [95% CI 1.62 to 2.44]; P < .00001), and mechanical loosening (OR 1.78 [95% CI 1.43 to 2.22]; P < .00001) in TKA. Sarcopenic patients were at an increased risk of UTI (OR 1.79 [95% CI 1.32 to 2.43]; P = .0002) and prosthetic loosening (OR 1.97 [95% CI 1.10 to 3.53]; P = .02) post-THA.</p><p><strong>Conclusions: </strong>Baseline sarcopenia was prevalent in patients undergoing TJA. It was associated with an increased risk of UTI and prosthetic loosening following TKA and THA. Increased risk of blood transfusion, pneumonia, prosthetic fractures, and mechanical loosening following TKA.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141433300","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-06-25DOI: 10.1016/j.arth.2024.06.037
Sanjay Kubsad, Samalya Thenuwara, William Green, Shyam Kurian, Arman Kishan, Andrew B Harris, Gregory J Golladay, Savyasachi C Thakkar
{"title":"10-Year Cumulative Incidence and Indications for Revision Total Joint Arthroplasty for Patients Who Have Ehlers-Danlos Syndrome.","authors":"Sanjay Kubsad, Samalya Thenuwara, William Green, Shyam Kurian, Arman Kishan, Andrew B Harris, Gregory J Golladay, Savyasachi C Thakkar","doi":"10.1016/j.arth.2024.06.037","DOIUrl":"10.1016/j.arth.2024.06.037","url":null,"abstract":"<p><strong>Background: </strong>Long-term complications following total joint arthroplasty are not well established for patients who have Ehlers-Danlos syndrome (EDS), a group of connective tissue disorders. This study compared 10-year incidence of revision surgery after total hip arthroplasty (THA) and total knee arthroplasty (TKA) in patients who have and do not have EDS.</p><p><strong>Methods: </strong>A retrospective cohort analysis was conducted using a national all-payer claims database from 2010 to 2021 to identify patients who underwent primary TKA or THA. Patients who had and did not have EDS were propensity score-matched by age, sex, and a comorbidity index. Kaplan-Meier analyses and Cox proportional hazard models were used to determine the cumulative incidence and risks of revision experienced by patients who have and do not have EDS.</p><p><strong>Results: </strong>The EDS patients who underwent TKA had a higher risk of all-cause revision (hazard ratio [HR]: 1.50, 95% confidence interval [95% CI]: 1.09 to 2.07, P < .014) and risk of revision due to instability (HR = 2.49, 95% CI: 1.37 to 4.52, P < .003). The EDS patients who underwent THA had a higher risk of all-cause revision (HR = 2.32, 95% CI: 1.47 to 3.65, P < .001), revision due to instability (HR = 4.26, 95% CI: 2.17 to 8.36, P < .001), and mechanical loosening (HR = 3.63, 95% CI: 2.05 to 6.44, P < .001).</p><p><strong>Conclusions: </strong>Patients who had EDS were found to have a higher incidence of revision within 10 years of undergoing TKA and THA compared to matched controls, especially for instability. Patients who have EDS should be counseled accordingly. Surgical technique and implant selection should include consideration for increased constraint in TKA and larger femoral heads or dual mobility articulations for THA.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141472325","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-07-31DOI: 10.1016/j.arth.2024.07.034
Alexander R Dombrowsky, Josef E Jolissaint, Samuel L Posey, Joseph M Burger, Rory Metcalf, Taylor M Rowe, Kayla T Hietpas, Thomas K Fehring
{"title":"Regional Periprosthetic Joint Infection Centers: The Time Has Come for a Paradigm Change in the Treatment of Periprosthetic Joint Infection.","authors":"Alexander R Dombrowsky, Josef E Jolissaint, Samuel L Posey, Joseph M Burger, Rory Metcalf, Taylor M Rowe, Kayla T Hietpas, Thomas K Fehring","doi":"10.1016/j.arth.2024.07.034","DOIUrl":"10.1016/j.arth.2024.07.034","url":null,"abstract":"<p><strong>Background: </strong>Periprosthetic joint infection (PJI) is a rare, yet devastating complication with high mortality rates, unpredictable treatment outcomes, and high costs. The purpose of this study was to determine 90-day and 1-year mortality rates at a specialized PJI center, assess the impact of delayed referral to a PJI center on outcomes, and determine the cost of PJI treatment prior to referral to a PJI center.</p><p><strong>Methods: </strong>A review of our institution's PJI registry was performed to identify patients who had a chronic PJI treated with a 2-stage exchange arthroplasty at our PJI Center from 2017 to 2021. Patients not referred from an external location were excluded. Mortality at 90 days and 1 year was collected. The date of infection diagnosis until the date of referral was recorded. Outcomes were documented as failure of treatment at the final clinical follow-up. The number and type of prior infection treatments were documented for each patient. The estimated cost was calculated using established PJI literature.</p><p><strong>Results: </strong>There were 172 patients (182 joints) who met inclusion criteria during this timeframe. The 90-day and 1-year mortality rates were 0 and 3.9%, respectively. There was a higher failure rate in patients referred >90 days after the diagnosis of chronic PJI (23 versus 11%, P = 0.031). The total cost of PJI treatment prior to referral for this group of patients was $6.9 million.</p><p><strong>Conclusions: </strong>Implementation of a specialized PJI referral center leads to lower mortality rates, improved outcomes, and decreased cost for the health-care system.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141876570","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-05-13DOI: 10.1016/j.arth.2024.05.027
Precious C Oyem, Oluwapeyibomi I Runsewe, Nickelas Huffman, Ignacio Pasqualini, Pedro J Rullán, Alison K Klika, Matthew E Deren, Robert M Molloy, Nicolas S Piuzzi
{"title":"Recognizing the Sex Disparity in Surgeons Performing Total Knee Arthroplasty.","authors":"Precious C Oyem, Oluwapeyibomi I Runsewe, Nickelas Huffman, Ignacio Pasqualini, Pedro J Rullán, Alison K Klika, Matthew E Deren, Robert M Molloy, Nicolas S Piuzzi","doi":"10.1016/j.arth.2024.05.027","DOIUrl":"10.1016/j.arth.2024.05.027","url":null,"abstract":"<p><strong>Background: </strong>There is an unambiguous sex disparity in the field of orthopaedic surgery, with women making up only 7.4% of practicing orthopaedic surgeons in 2022. This study seeks to evaluate the sex distribution among orthopaedic surgeons engaged in primary total knee arthroplasty (TKA) between 2013 and 2020, as well as the procedural volume attributed to each provider.</p><p><strong>Methods: </strong>We retrospectively queried the Medicare dataset to quantify all physicians reporting orthopaedic surgery as their specialty and performing primary TKA from 2013 to 2020. Healthcare Common Procedure Coding System codes for primary TKA procedures were used to extract associated utilization and billing provider information. Trend analyses were performed with 2-sided correlated Mann-Kendall tests to evaluate trends in the number of surgeons by sex and the women-to-men surgeon ratio.</p><p><strong>Results: </strong>During the study period, 6,198 to 7,189 surgeons billed for primary TKA. Of this number, an average of 2% were women. The mean number of procedures billed for by men was 39.02/y (standard deviation: 34.54), and by women was 28.76/y (standard deviation: 20.62) (P < .001). There was no significant trend in the number of men or women surgeons who billed for primary TKA during the study period. Trend analysis of the women-to-men ratio demonstrated an increasing trend of statistical significance (P = .0187).</p><p><strong>Conclusions: </strong>There was a significant upward trend in the women-to-men ratio of surgeons who billed for primary TKA. However, there remains a colossal gender gap, as women only made up 2.4% of surgeons who billed for the procedure. The current study raises awareness of the notable discrepancy in the average number of TKAs performed by women as compared to men. The orthopaedic community should aim to determine ways to increase the number of women arthroplasty surgeons along with the opportunities that women have to perform TKAs.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140946534","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-06-01DOI: 10.1016/j.arth.2024.05.082
Wenzhong Zhang, Hong Ji, Yan Wu, Kangming Sun, Jing Li, Zhenzhen Xu, Chunlei Wang, Fengyi Zhao, Qingxiang Sun
{"title":"Patient Self-Management Scale After Total Knee Arthroplasty (PSMS-TKA): Instrument Development and Cross-Sectional Validation Study.","authors":"Wenzhong Zhang, Hong Ji, Yan Wu, Kangming Sun, Jing Li, Zhenzhen Xu, Chunlei Wang, Fengyi Zhao, Qingxiang Sun","doi":"10.1016/j.arth.2024.05.082","DOIUrl":"10.1016/j.arth.2024.05.082","url":null,"abstract":"<p><strong>Background: </strong>Effective self-management after total knee arthroplasty (TKA) not only improves patients' knee pain and physical function but also improves quality of life. However, there is no assessment tool that can be targeted to evaluate the self-management level of patients after TKA. This study aimed to develop and validate a scale to specifically assess the level of self-management in patients after TKA.</p><p><strong>Methods: </strong>The study was conducted in 2 steps: (1) instrument development and (2) psychological tests (n = 428). For the instrument development portion, scale items were generated through a literature review and semi-structured interviews, then reviewed and revised by a panel of experts, and assessed for content validity and pilot testing. For the psychometric tests component, items were analyzed using corrected item-total scale correlations, the critical ratio method, and Cronbach's α. Construct validity was evaluated using exploratory factor analysis and validation factor analysis. Criterion correlation validity was checked by calculating Pearson's correlation coefficient using the Arthritis Self-Efficacy Scale-8 and the scale developed in this study. Internal consistency reliability was evaluated using Cronbach's α and fold-half reliability, and retest reliability was assessed using intragroup correlation coefficients.</p><p><strong>Results: </strong>The Patient Self-Management Scale after Total Knee Arthroplasty (PSMS-TKA) comprises 4 factors and 23 items that assess daily behavior management, disease information management, psychosocial management, and exercise rehabilitation management. Exploratory factor analysis and validation factor analysis yielded a stable 4-factor model for the 23 items. The PSMS-TKA demonstrated good criterion-related validity when using the Arthritis Self-Efficacy-8 as a criterion. The Cronbach's α of the PSMS-TKA was 0.903, the split-half reliability was 0.934, and the test-retest reliability correlation coefficient was 0.887 (P < .01); thus, the reliability of the scale is good.</p><p><strong>Conclusions: </strong>The PSMS-TKA developed in this study has good validity and reliability and can be used to assess the level of self-management in patients after TKA. The scale helps healthcare professionals understand the level of self-management of patients undergoing TKA.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141237446","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-06-17DOI: 10.1016/j.arth.2024.06.020
Alexander J Acuña, Enrico M Forlenza, Joseph M Serino, Monish S Lavu, Craig J Della Valle
{"title":"Is Hospital-Based Outpatient Revision Total Knee Arthroplasty Safe? An Analysis of 2,171 Outpatient Aseptic Revision Procedures.","authors":"Alexander J Acuña, Enrico M Forlenza, Joseph M Serino, Monish S Lavu, Craig J Della Valle","doi":"10.1016/j.arth.2024.06.020","DOIUrl":"10.1016/j.arth.2024.06.020","url":null,"abstract":"<p><strong>Background: </strong>Outpatient primary total knee arthroplasty (TKA) has been well-established as a safe and effective procedure; however, the safety of outpatient revision TKA remains unclear. Therefore, this study utilized a large database to compare outcomes between outpatient and inpatient revision TKA.</p><p><strong>Methods: </strong>An all-payor database was queried to identify patients undergoing revision TKA from 2010 to 2022. Patients who had diagnosis codes related to periprosthetic joint infection (PJI) were excluded. Outpatient surgery was defined as a length of stay < 24 hours. Cohorts were matched by age, sex, Elixhauser Comorbidity Index, comorbidities (diabetes, obesity, tobacco use), components revised (1-versus 2-component), and revision etiology. Medical complications at 90 days and surgical complications at 1 and 2 years postoperatively were evaluated through multivariate logistic regression. A total of 4,342 aseptic revision TKAs were included.</p><p><strong>Results: </strong>No differences in patient characteristics, procedure type, or revision etiologies were seen between groups. The outpatient cohort had a lower risk of PJI (odds ratio (OR): 0.547, 95% confidence interval (CI): 0.337 to 0.869; P = .012), wound dehiscence (OR: 0.393, 95% CI: 0.225 to 0.658; P < .001), transfusion (OR: 0.241, 95% CI: 0.055 to 0.750; P = .027), reoperation (OR: 0.508, 95% CI: 0.305 to 0.822; P = .007), and any complication (OR: 0.696, 95% CI: 0.584 to 0.829; P < .001) at 90 days postoperatively. At 1 year and 2 years postoperatively, outpatient revision TKA patients had a lower incidence of revision for PJI (OR: 0.332, 95% CI: 0.131 to 0.743; P = .011 and OR: 0.446, 95% CI; 0.217 to 0.859; P = .020, respectively) and all-cause revision (OR: 0.518, 95% CI: 0.377 to 0.706; P < .001 and OR: 0.548, 95% CI: 0.422 to 0.712; P < .001, respectively).</p><p><strong>Conclusions: </strong>Our findings suggest that revision TKA can be safely performed on an outpatient basis in appropriately selected patients who do not have an increased risk of adverse events relative to inpatient revision TKA. However, we could not ascertain case complexity in either cohort, and despite controlling for several potential confounders, other less tangible differences could exist between groups.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141428224","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-06-21DOI: 10.1016/j.arth.2024.06.039
Alex J Anatone, Andrew J Hughes, Nicholas C Schiller, Jonathan M Vigdorchik, Thomas P Sculco, Peter K Sculco
{"title":"Decreased \"Polar Axis Angle\" is Associated With Instability After Total Hip Arthroplasty: A New Method to Assess Functional Component Position on Lateral-Seated Radiographs.","authors":"Alex J Anatone, Andrew J Hughes, Nicholas C Schiller, Jonathan M Vigdorchik, Thomas P Sculco, Peter K Sculco","doi":"10.1016/j.arth.2024.06.039","DOIUrl":"10.1016/j.arth.2024.06.039","url":null,"abstract":"<p><strong>Background: </strong>Research on hip instability has focused on establishing \"safe\" ranges of combined component position in supine posture or functional placement of the acetabular component based on the hip-spine relationship. A new angle, the polar axis angle (PAA), of the total hip arthroplasty (THA) components describes the concentricity of both components and can be evaluated in functional positions that confer a greater risk of instability (ie, sitting). The goal of this study was to compare the PAA in functional positions between patients who experienced a postoperative dislocation and a matched control group who did not have a dislocation.</p><p><strong>Methods: </strong>An institutional database was searched for patients experiencing a dislocation after primary THA. Patients who had postoperative full-length standing and lateral-seatedradiographs were included in the dislocator group. A control group of nondislocator patients was matched 2:1 by age, body mass index, sex, and hip-spine classification. Radiographic measurements of the neck angle, acetabular ante-inclination, and PAA were performed by 2 separate blinded, trained reviewers.</p><p><strong>Results: </strong>The lateral-seated neck angle and lateral-seated PAA measurements were significantly lower in the dislocator groups (n = 37) than the control group (n = 74) (23 versus 33 degrees, P < .001; 74 versus 83 degrees, P = .012, respectively). Significant differences were also observed in changes in the polar axes and neck angles between standing and seated positions (P < .001 and P < .001, respectively). When comparing patients who have mobile spines versus stiff spines within the dislocator group, there were no differences in the acetabular, neck, or PAAs. The effect of neck angle on the PAA showed a linear trend across cohorts.</p><p><strong>Conclusions: </strong>Patients who experience postoperative instability have a significantly lower PAA on lateral-seated radiographs when matched for age, sex, body mass index, and hip-spine classification. In addition, the lower seated PAA is driven more strongly by decreased functional femoral anteversion, which emphasizes the role of functional femoral version on stability in THA.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141443712","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-06-21DOI: 10.1016/j.arth.2024.06.036
Ryan C White, Maya M Lach, Daniel R Schmitt, Amy W Wozniak, Nicholas M Brown
{"title":"Risk Factors for Trochanteric Bursitis Following Total Hip Arthroplasty: A Radiographic Analysis.","authors":"Ryan C White, Maya M Lach, Daniel R Schmitt, Amy W Wozniak, Nicholas M Brown","doi":"10.1016/j.arth.2024.06.036","DOIUrl":"10.1016/j.arth.2024.06.036","url":null,"abstract":"<p><strong>Background: </strong>Trochanteric bursitis (TB) is a prevalent complication following total hip arthroplasty (THA), with increased offset hypothesized as a potential risk factor. This study investigated potential TB predictors in THA patients, including radiographic measurements of offset and leg length, comorbidities, and patient characteristics.</p><p><strong>Methods: </strong>In this retrospective cohort study, all THA patients from a single academic tertiary care center between 2005 and 2021 were reviewed. Exclusion criteria included less than one-year follow-up, osteonecrosis, or fracture. Manual radiographic measurements of offset (acetabular, femoral, and total) and leg length from preoperative and postoperative antero-posterior pelvis X-rays were taken, with scaling using femoral cortical diameter. Univariable and multivariable Cox proportional hazard models were employed to estimate TB risk.</p><p><strong>Results: </strong>Of 1,094 patients, 103 (9.4%) developed TB, with a median (Q1, Q3) time to presentation of 41.8 weeks (25.5, 66.9). In univariable models, only sex was associated with increased TB risk, with women exhibiting a 1.79 times increased risk (hazard ratio: 1.79 (1.16, 2.76), P = .009). Changes in acetabular offset, femoral offset, total offset, and leg length between preoperative and postoperative radiographs were not associated with an increased risk of developing TB in the univariate or multivariate models. Furthermore, various offset thresholds were evaluated, with no amount of increased offset showing increased TB risk.</p><p><strong>Conclusions: </strong>This study found no relationship between femoral, acetabular, or total offset and TB following THA. These findings suggest that surgeons may consider adding offset for increased prosthetic stability in high-risk cases. However, given that this is a retrospective study, the authors are not advocating for the routine use of increased offset. The study identified women as a risk factor with a 1.79 times higher TB risk, highlighting the importance of counseling women patients on this heightened risk.</p>","PeriodicalId":51077,"journal":{"name":"Journal of Arthroplasty","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141443716","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}
Journal of ArthroplastyPub Date : 2024-12-01Epub Date: 2024-09-18DOI: 10.1016/j.arth.2024.09.021
Juan D Lizcano, Matthew J Dietz, Thomas K Fehring, Michael A Mont, Carlos A Higuera-Rueda
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