HIP International最新文献

{"title":"The statistical fragility of randomised controlled trials evaluating tranexamic acid against a saline control in total hip arthroplasty.","authors":"Christoph A Schroen, Niklas H Koehne, Auston R Locke, Kalyn Y Dawes, Samuel C Frohlich, Avanish Yendluri, Nikan K Namiri, John J Corvi, Robert L Parisien","doi":"10.1177/11207000261442088","DOIUrl":"https://doi.org/10.1177/11207000261442088","url":null,"abstract":"<p><strong>Introduction: </strong>This study applied the fragility index (FI), reverse fragility index (rFI), and fragility quotient (FQ) to evaluate the statistical fragility of outcomes reported in RCTs evaluating TXA against a saline control in total hip arthroplasty (THA).</p><p><strong>Methods: </strong>PubMed, Embase, and MEDLINE were searched for RCTs on TXA in THA compared to a saline control. FI and rFI were calculated for dichotomous outcomes, representing the number of outcome reversals required to alter significance.</p><p><strong>Results: </strong>32 studies were included. Across 69 total outcomes, the median FI was 3.0 (IQR 2.0-6.0) with an associated median FQ of 0.031 (IQR 0.020-0.053), suggesting that 3 outcome event reversals would alter significance for 50% of all outcomes. 18 outcomes were statistically significant, with a median FI of 3.0 (IQR 1.0-5.0) and a median FQ of 0.026 (IQR 0.017-0.036). 51 outcomes were non-significant, with a median rFI of 4.0 (IQR 2.5-7.0) and a median FQ of 0.032 (IQR 0.020-0.066). Results designated as primary outcomes were more fragile (median FQ = 0.025, <i>n</i> = 20) than non-primary outcomes (median FQ = 0.032, <i>n</i> = 49).</p><p><strong>Conclusions: </strong>The efficacy of TXA use during THA from RCTs is statistically fragile, particularly among significant outcomes and those related to blood or platelet transfusion rates. We recommend combined reporting of <i>p</i>-values with FI and FQ metrics to help interpret clinical findings in RCT involving TXA use during THA.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"11207000261442088"},"PeriodicalIF":1.1,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147981523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"No differences in clinical and radiographic outcomes between standard and shortened versions of a same cementless femoral stem in Dorr type A femurs.","authors":"Adrien D'Ambrosio, Thibaut Goetsch, Olivier Roche, François Bonnomet","doi":"10.1177/11207000261441838","DOIUrl":"https://doi.org/10.1177/11207000261441838","url":null,"abstract":"<p><strong>Purpose: </strong>In Dorr type A femurs (DTAF), the flared anatomy renders proximal femoral filling (PFF) with a standard-length stem (STA) challenging, although this is essential to ensure favourable outcomes. This study compared clinical and radiographic outcomes between standard and shortened versions of a same cementless stem in DTAF. Our hypothesis was that there would be no differences in clinical outcomes, PFF or osseointegration between the 2 stems.</p><p><strong>Methods: </strong>We reviewed 87 THA files performed in DTAF from 2013 to 2015 for STA and from 2015 to 2019 for shortened-length stems (SHO). At minimum 2-year follow-up, 8 patients were unavailable for evaluation, leaving 79 THA: 34 STA and 45 SHO. Femoral morphology was assessed preoperatively with the canal-calcar ratio (CCR) and canal bone ratio (CBR). Outcomes included: Oxford Hip Score (OHS) and PMA, proximal canal fill ratio (CFR)(A) and (B), stem subsidence and alignment, distal cortical hypertrophy, and Engh score.</p><p><strong>Results: </strong>There were no significant differences in clinical outcomes, PFF and osseointegration between the 2 groups. Greater migration was observed in STA. Distal cortical hypertrophy was seen exclusively in SHO and was significantly associated with a worse OHS. CCR was significantly correlated with proximal CFR. Aligned stems were significantly associated with higher CFR(B).</p><p><strong>Conclusions: </strong>There were no differences in clinical or radiographic outcomes of STA and SHO in DTAF. Increasing CFR enhanced stem alignment, while femoral morphology significantly influenced PFF. SHO migrated less, but exhibited distal cortical hypertrophy, which may indicate early stress-shielding and challenge the stem's \"short\" designation.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"11207000261441838"},"PeriodicalIF":1.1,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147947676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence and associated risk factors for hypovitaminosis D in patients scheduled for primary total hip arthroplasty in Germany.","authors":"Jan Oberfeld, Lisa Wiederhold, Miledi Hoxha, Tizian Heinz, Maximilian Rudert, Felix Hochberger, Manuel Weissenberger, Konstantin Horas","doi":"10.1177/11207000261437108","DOIUrl":"https://doi.org/10.1177/11207000261437108","url":null,"abstract":"<p><strong>Background: </strong>Hypovitaminosis D is widespread in orthopaedic patients and may influence outcomes following joint arthroplasty. However, data specifically addressing vitamin D status in patients undergoing primary total hip arthroplasty (THA) remain limited. This study aimed to determine the prevalence of hypovitaminosis D and identify associated risk factors in a large German THA cohort.</p><p><strong>Methods: </strong>In this prospective single-centre study, 679 consecutive patients scheduled for primary THA due to osteoarthritis were evaluated over a 12-month period. Preoperative serum 25-hydroxyvitamin D (25[OH]D), parathyroid hormone, and calcium levels were measured. Vitamin D status was categorised as deficiency (⩽19 ng/mL), insufficiency (20-29 ng/mL), or sufficiency (⩾30 ng/mL). Associations between vitamin D status and demographic, clinical, and seasonal variables were analysed using χ² tests, ANOVA, and multivariable linear and logistic regression models.</p><p><strong>Results: </strong>The mean serum 25(OH)D level was 26.0 ± 13.2 ng/mL, and hypovitaminosis D was present in 66,3% of patients (33.9% deficiency, 32.4% insufficiency). Season of sampling showed no significant influence on vitamin D levels. In multivariable analysis, preoperative vitamin D supplementation was the strongest positive predictor of higher 25(OH)D levels (B = +16.1 ng/mL; <i>p</i> < 0.001), while higher BMI category (B = -1.64 ng/mL per category; <i>p</i> < 0.001) and male sex (B = -2.45 ng/mL; <i>p</i> = 0.010) were independently associated with lower levels. Logistic regression confirmed reduced odds of vitamin D sufficiency among men (OR 0.59; <i>p</i> = 0.007) and with increasing BMI category (OR 0.74; <i>p</i> = 0.002). Vitamin D status was not associated with smoking, comorbidity burden, season, or functional scores (WOMAC, EuroQol).</p><p><strong>Conclusions: </strong>Hypovitaminosis D is highly prevalent in German patients undergoing primary THA, independent of season. Obesity and male sex are significant risk factors, whereas supplementation is strongly protective. Routine preoperative assessment and targeted optimisation of vitamin D levels, particularly in high-risk subgroups, may represent a simple, cost-effective component of arthroplasty prehabilitation. Further research is needed to determine whether correcting vitamin D deficiency translates to improved postoperative outcomes.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"11207000261437108"},"PeriodicalIF":1.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147837237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MRI at 5 years predicts upsloping acetabular sourcil at skeletal maturity in developmental dysplasia of the hip.","authors":"Takashi Koura, Tomonori Tetsunaga, Kazuki Yamada, Tomohiro Inoue, Ryuichiro Okuda, Yasutaka Masada, Tomoko Tetsunaga, Yuki Okazaki, Toshifumi Ozaki","doi":"10.1177/11207000261436397","DOIUrl":"https://doi.org/10.1177/11207000261436397","url":null,"abstract":"<p><strong>Introduction: </strong>Acetabular sourcil morphology has been linked to hip instability and pain. We investigated whether MRI findings at age 5 years predict sourcil morphology at skeletal maturity in developmental dysplasia of the hip (DDH).</p><p><strong>Methods: </strong>We retrospectively reviewed 71 surgically treated hips that were followed to skeletal maturity. On final anteroposterior radiographs, the sourcil was classified as type A (downsloping), type B (horizontal), or type C (upsloping). Coronal MRI at 5 years was used to measure bony, cartilaginous, and labral acetabular indices and centre-edge angles, and the labral junction obliquity angle (LJOA). Predictors of type C morphology were assessed using multivariable logistic regression and ROC analyses.</p><p><strong>Results: </strong>At 5 years, radiographic acetabular index and centre-edge angle did not differ among sourcil types. In contrast, hips that developed type C morphology showed smaller cartilaginous and labral centre-edge angles and a smaller LJOA on MRI. In multivariable analysis, a smaller cartilaginous centre-edge angle and a smaller LJOA independently predicted type C morphology. Optimal cutoff values were 23° for the cartilaginous centre-edge angle (AUC 0.902) and 89° for the labral junction obliquity angle (AUC 0.964).</p><p><strong>Conclusion: </strong>MRI at age 5 years may help identify DDH hips at risk of developing an upsloping sourcil at skeletal maturity.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"11207000261436397"},"PeriodicalIF":1.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147837149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The direct anterior approach in total hip arthroplasty may be associated with lower short-term mortality compared to various other approaches: a Dutch arthroplasty register study comprising 379,108 procedures.","authors":"Roderick J M Vossen, Gaby V Ten Noever de Brauw, Jore H Willems, Rienk Eshuis, Inger N Sierevelt, Anneke Spekenbrink-Spooren, Hendrik A Zuiderbaan","doi":"10.1177/11207000251365201","DOIUrl":"10.1177/11207000251365201","url":null,"abstract":"<p><strong>Background: </strong>The association between primary total hip arthroplasty (THA) approaches and short-term mortality rates remained unexplored. This study aimed to compare short-term mortality rates between the direct anterior (DAA), posterolateral (PL), anterolateral (AL) and direct lateral (DL) approaches and determine associated factors.</p><p><strong>Methods: </strong>A registry study was conducted using data from 2007 to 2023 of the Dutch Arthroplasty Register. 30- and 90-day mortality were compared between approaches using the chi-square test and the logistic regression analysis to adjust for confounders (age, sex, patient's physical status [ASA] classification, fixation method, body mass index [BMI] and smoking status). Multivariate regression models were used to determine factors associated with short-term mortality. Sensitivity analyses for time periods (2007-2012, 2013-2017, 2018-2023) were performed.</p><p><strong>Results: </strong>The study comprised 379,108 patients (mean age 69.9 ± 9.5, male 33.8%). The AL, PL and DL approaches demonstrated a significantly larger likelihood for 30-day mortality compared to the DAA after adjusting for confounders (DAA: reference; AL: OR 2.32 [1.52-3.57], <i>p</i> < 0.001; PL: OR 1.79 [1.36-2.36], <i>p</i> < 0.001; DL: OR 2.78 [1.69-4.57], <i>p</i> < 0 .001). In ASA I-II patients, likelihood for 90-day mortality for the AL, PL and DL approaches was significantly higher than the DAA approach (DAA: reference; AL: OR 2.293, <i>p</i> < 0.001; PL: OR 1.963, <i>p</i> < 0.001; DL: OR 2.016, <i>p</i> < 0.001). In ASA III-IV patients, differences were not significant, except when comparing the DL to the DAA approach (OR 1.484, <i>p</i> = 0.011). Increased age, male sex, surgical approach and cemented fixation were significantly associated with 30- and 90-day mortality.</p><p><strong>Conclusions: </strong>Findings were suggestive that the DAA provides a reduced likelihood for short-term mortality compared to the PL, AL and DL, after adjusting for confounding factors. Differences in mortality rate were more substantial in healthy patients and remained similar irrespective of time periods. Increased age, male sex, surgical approach, and cemented fixation increased likelihood on short-term mortality.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"360-370"},"PeriodicalIF":1.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144872883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patient-reported outcomes among age-matched hip resurfacing and total hip arthroplasty: an analysis of 622 patients with a minimum 2-year follow-up.","authors":"Ignacio Pasqualini, Satia Sinclair, Shujaa T Khan, Khaled A Elmenawi, Yuxuan Jin, Alison K Klika, John P McLaughlin, Nathan W Mesko, Peter J Brooks, Nicolas S Piuzzi","doi":"10.1177/11207000251388865","DOIUrl":"10.1177/11207000251388865","url":null,"abstract":"<p><strong>Aim: </strong>The purpose of this study was to investigate differences in patient-reported outcome measures (PROMs) among patients who underwent THA in comparison to Birmingham hip resurfacing (BHR) for the treatment of osteoarthritis.</p><p><strong>Methods: </strong>A prospective cohort of 1414 patients who underwent BHR (<i>n</i> = 707) or THA (<i>n</i> = 707) for the treatment of primary osteoarthritis in a single healthcare system between July 2015 and December 2017 were included and propensity score matched on age. Differences between groups in the Hip disability and Osteoarthritis Outcome Score (HOOS) pain subscale, HOOS-Physical Function Shortform (PS), and the University of California at Los Angeles (UCLA) activity score at 2 years follow-up were evaluated. Minimal clinically important differences (MCID) were based on previous studies.</p><p><strong>Results: </strong>Of the total 622 patients (THA, <i>n</i> = 311; BHR, <i>n</i> = 311) who completed the 2-year follow-up, BHR patients reported less pain (2-year HOOS pain: BHR, 100; THA, 95; <i>p</i> < 0.001), higher function (2-year HOOS PS: BHR, 95.4; THA, 91.2; <i>p</i> < 0.001), and greater activity levels (2-year UCLA activity: BHR, 7.5; THA, 6; <i>p</i> < 0.001) compared to THA patients. After adjusting for demographic variables, no significant difference in estimated median HOOS pain scores was found between cohorts. BHR patients exhibited significantly higher median HOOS-PS scores (HOOS-PS score difference: 2.5, 95% CI, 0.38-5.4; <i>p</i> = 0.03) and higher median UCLA activity scores (UCLA activity score difference: 0.79, 95% CI, 0.33-1.24; <i>p</i> < 0.001) compared to THA patients. No differences were observed in the proportion of patients achieving MCID thresholds in all PROMs between groups.</p><p><strong>Conclusion: </strong>BHR and THA have both been shown to significantly ameliorate pain and enhance functional capacity in patients with end-stage osteoarthritis. Interestingly, at the 2-year postoperative follow-up, BHR patients exhibited higher activity levels and improved physical function compared to those who underwent THA; however, the extent of this improvement may not reach clinical relevance.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"423-428"},"PeriodicalIF":1.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145495111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An algorithm for automated femoral leg length and offset calculations on pelvis radiographs.","authors":"Kellen L Mulford, Ryan D Roman, Joshua R Labott, Elizabeth S Kaji, Austin F Grove, Michael J Taunton, Cody C Wyles","doi":"10.1177/11207000261421918","DOIUrl":"10.1177/11207000261421918","url":null,"abstract":"<p><strong>Introduction: </strong>Manual measurement of leg length (LL) and offset can be tedious. This study developed an automated algorithm for measuring LL and offset from pre- and postoperative AP pelvis radiographs in a large cohort of THA patients.</p><p><strong>Methods: </strong>Using a deep learning model trained on 1100 total AP pelvis radiographs, an algorithm was developed to calculate LL and offset. Algorithm measurements were compared with manual measurements by 4 raters on a sample of 100 pre- and postoperative image pairs. Inter- and intra-rater consistency was calculated using the intraclass correlation coefficient (ICC). The algorithm was applied to calculate the pre- and postoperative LL and offset discrepancies and the change in LL and offset bilaterally in a cohort of 15,951 image pairs.</p><p><strong>Results: </strong>ICC values between the algorithm and human raters ranged from 0.83 to 0.88 for offset measurements and 0.92 to 0.97 for LL measurements. Human raters demonstrated good-to-excellent inter-rater ICC and uniformly excellent intra-rater ICC. Entire database measurements demonstrated shorter LLs for arthritic joints versus the contralateral leg preoperatively and reduced LL discrepancy post-arthroplasty.</p><p><strong>Conclusions: </strong>We present a deep learning algorithm for calculating LL and offset using AP pelvis radiographs. This tool can support population-level studies and may assist operative management.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"388-397"},"PeriodicalIF":1.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147364946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outcomes and complications of total hip arthroplasty in patients affected by haematological disorder: a systematic review.","authors":"Andrea Zampoli, Biagio Zampogna, Giuseppe Francesco Papalia, Giulio Gentile, Francesco Rosario Parisi, Giancarlo Giurazza, Augusto Ferrini, Cirino Amato, Ombretta Annibali, Rocco Papalia","doi":"10.1177/11207000251389936","DOIUrl":"10.1177/11207000251389936","url":null,"abstract":"<p><strong>Purpose: </strong>Total hip arthroplasty (THA) significantly enhances patients' quality of life. In the field of haematologic healthcare, hip replacement surgery is particularly relevant for those with conditions such as leukaemia, lymphoma, and myeloma. These patients often undergo extensive treatments, including chemotherapy and corticosteroids, which can lead to bone-related complications like avascular necrosis of the femoral head (ANFH). This systematic review explores the relationship between haematologic diseases and bone pathologies requiring THA.</p><p><strong>Methods: </strong>Data were collected from observational retrospective studies on hip arthroplasty in patients with haematologic disorder. Independent reviewers searched the literature, extracting relevant data according to PRISMA guidelines. We analysed 820 papers and included 10 observational studies in the review. Demographics, pathology, treatment, clinical outcomes, complications, survivorship, and follow-up were analysed.</p><p><strong>Results: </strong>The study included a total of 363 patients and 401 hips. The mean age of the patients was 39.5 years. The mean follow-up was 5 years. In the examined studies, most patients were diagnosed with acute lymphoid leukemia (5 out of 11 studies). Avascular necrosis of the femoral head was consistently recognised as the significant etiology for THA. All patients had received corticosteroid therapy in the past, and additional therapies included chemotherapy, radiation, and stem cell transplantation. The median period before surgery was 2.05 years. There were 29 complications that required surgical revision. Aseptic loosening was the cause of 41.95% revisions, impingement and instability for 22.58%, infection for 19.35%, and fracture for 9.67%. Minor causes include sinking and a fractured ceramic liner.</p><p><strong>Conclusions: </strong>THA is a safe and valuable procedure in patients with an ANFH history of haematological diseases and immunosuppressive treatments. Although THA presents higher complication rates in these patients compared to the general population, it has demonstrated satisfactory success rates.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"398-405"},"PeriodicalIF":1.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145494322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trajectory and rate of recovery of function, pain and activity level after hip arthroscopy.","authors":"Alexandra Baker Lutz, Dominic J Ventimiglia, Evan L Honig, Michael A McCurdy, Jacob T Hartline, Nathan N O'Hara, R Frank Henn, Sean J Meredith","doi":"10.1177/11207000251395633","DOIUrl":"10.1177/11207000251395633","url":null,"abstract":"<p><strong>Purpose: </strong>Understanding the trajectory of recovery after hip arthroscopy is valuable to help manage expectations and recognise patients at risk for delayed recovery. The purpose of this study was to determine the recovery profile of function, pain, and activity level up to 2 years after hip arthroscopy.</p><p><strong>Methods: </strong>Patients from a single centre's orthopaedic registry who underwent hip arthroscopy were identified. Function, pain, and activity level were measured using Patient-Reported Outcomes Measurement Information System (PROMIS) Physical Function (PF), PROMIS Pain Interference (PI), a numeric pain scale (NPS), and Tegner Activity Scale (TAS) up to 2 years postoperatively. Nonlinear growth models were used to estimate the effect of recovery time on each outcome.</p><p><strong>Results: </strong>Of 92 patients identified, 64 (70%) were followed up to 2 years. There was significant improvement in all outcome measures at 2 years. The time to 50% recovery for PROMIS PF, PROMIS PI, and TAS was 11.0, 6.7, and 18.5 weeks, respectively. The time, in weeks, to full recovery of PROMIS PF, PROMIS PI, and TAS was estimated at 17.0, 37.4, and 28.8 respectively. NPS declined at a rate of -0.22 points per week, plateauing by 12 weeks.</p><p><strong>Conclusions: </strong>Physical function and activity levels plateau at 4 and 7 months respectively, while pain recovery is more variable. These results can help guide discussions with patients regarding recovery after hip arthroscopy and provide benchmarks for identifying patients who could benefit from changes in postoperative protocol.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"452-459"},"PeriodicalIF":1.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145933082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surgical management of a subtrochanteric fracture in a patient with 50-year longstanding intra-articular hip ankylosis and ischiofemoral synostosis: a case report.","authors":"David Debnár, Boris Šteňo, Milan Jančiar, Iľja Chandoga","doi":"10.1177/11207000251414947","DOIUrl":"10.1177/11207000251414947","url":null,"abstract":"<p><strong>Background: </strong>We present a rare, previously unreported case of total hip arthroplasty (THA) implantation in a patient with an ankylosed hip and pelvic-femoral synostosis who sustained a subtrochanteric fracture.</p><p><strong>Case: </strong>A 70-year-old woman had previously undergone right-sided infectious coxitis treatment, leading to hip ankylosis and pelvic-femoral synostosis. The patient had experienced no hip joint movement from her 20s for over 50 years due to bone fusion at 2 levels. Walking was feasible with compensation, given the ankylosis at an \"ideal position\" of 15° of flexion, 10° of abduction, and neutral rotation. The patient sustained a subtrochanteric fracture at the age of 70. Given the ankylosis and pelvic-femoral synostosis in the proximal femur fragment, an ideal solution was sought for the surgical management of this case.</p><p><strong>Methods: </strong>Synostosis was resected, total hip replacement was performed using revision arthroplasty components, solving both the problem of the ankylosed hip and that of the subtrochanteric fracture.</p><p><strong>Results: </strong>The subtrochanteric fracture united, and sufficient motion was achieved after THA.</p><p><strong>Conclusions: </strong>THA led to adequate fracture healing, relief of chronic lumbosacral pain and significant improvements in function, proving to be a promising solution for challenging complex hip cases, offering significant improvements in quality of life when combined with careful surgical technique, thorough planning, and attentive postoperative care.</p>","PeriodicalId":12911,"journal":{"name":"HIP International","volume":" ","pages":"NP1-NP6"},"PeriodicalIF":1.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146112969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}