Background: Although intralesional curettage remains the standard treatment for giant cell tumor of bone (GCTB), the radiological determinants of postoperative functional outcomes remain incompletely defined. This study aimed to evaluate the association between clinicodemographic and radiologic characteristics and functional outcomes, local recurrence, and complications following surgical treatment of GCTB. Methods: A retrospective analysis was performed on 27 patients treated surgically for GCTB. Demographic variables, Campanacci stage, tumor burden metrics, and MRI features were recorded. Functional outcome was assessed using the Musculoskeletal Tumor Society (MSTS) score. Univariate comparisons were conducted for recurrence and complications. Multivariate linear regression analyses were performed to identify independent predictors of postoperative MSTS scores. Results: Local recurrence occurred in 3 patients (11.1%). On univariate analysis, Campanacci stage III, soft tissue extension, higher tumor volume, increased tumor-to-bone ratio, and the presence of the paintbrush border sign were significantly associated with recurrence. Postoperative complications were observed in 6 patients (22.2%) and were associated with older age and greater tumor volume. In multivariate linear regression analyses of postoperative functional outcomes, Campanacci stage III and cortical destruction independently predicted lower MSTS scores when evaluated in separate, collinearity-adjusted models (β = − 2.8, p = 0.007 and β = − 2.4, p = 0.010, respectively). Conclusions: Functional outcomes following surgical treatment of GCTB are primarily determined by tumor stage and structural integrity rather than demographic factors. Advanced disease and loss of cortical continuity are associated with inferior postoperative function, highlighting the importance of radiologic assessment in surgical planning and patient counseling.

Background and Objectives: This study aimed to investigate the effect of intraoperative hyaluronic acid (HA) application on short-term functional outcomes after open surgical repair of Achilles tendon rupture. Materials and Methods: This retrospective cohort study included 102 patients screened at three tertiary centers (January 2023–October 2024). After applying the exclusion criteria, 64 patients were analyzed (32 HA, 32 control), with group allocation based on the intraoperative use of HA. The primary outcomes were the American Orthopaedic Foot and Ankle Society (AOFAS) Score and the Achilles Tendon Total Rupture Score (ATRS), evaluated at 3, 6, and 12 months; the Short Form 36 (SF-36) Physical Component Summary (PCS) and Mental Component Summary (MCS) scores, assessed at 6 and 12 months; and physical-performance tests (heel-rise endurance, single-leg hop distance, and calf muscle strength), performed at 6 and 12 months. Complications, including re-rupture, wound infection, and delayed wound healing, were also recorded. Results: At 6 months, the HA group had higher AOFAS scores (mean difference: 9.0, 95% CI: 6.3–11.7, p = 0.008) and ATRSs (mean difference: 7.0, 95% CI: 3.8–10.2, p = 0.008) than the controls. The differences were smaller but remained significant at 12 months (AOFAS mean difference: 5.0, 95% CI: 2.5–7.5, p = 0.034; ATRS mean difference: 4.0, 95% CI: 1.1–6.9, p = 0.034). The SF-36 PCS and MCS scores were also superior in the HA group at 6 and 12 months (all p < 0.05). The physical-performance tests (heel-rise endurance, single-leg hop, calf strength) showed significant mean differences, with the HA group scoring higher at both timepoints (all p < 0.05). Complication rates were low and not significantly different between groups (all p > 0.05). Conclusions: Intraoperative HA application during open Achilles tendon repair was associated with improvements in short-term functional recovery, general health status, and physical performance without increasing complication rates. These findings support the use of HA as a safe adjunct to optimize tendon gliding; however, prospective randomized controlled trials are needed to confirm these results.

Aim: This study aims to perform a bibliometric analysis of Lapidus-related research to identify trends, key contributors, and emerging innovations in the field.Material and Methods: Data were extracted from the Web of Science Core Collection database, focusing on publications containing the keyword "Lapidus" in orthopaedic journals up to December 2024. Bibliometric tools such as VOSviewer were used to analyze publication trends, collaboration networks, and keyword co-occurrence. Metrics like citation counts, influential authors, and institutional contributions were evaluated to uncover the academic landscape of Lapidus-related research.Results: A total of 310 articles from 35 countries were included, with the United States leading in publications and citations. The Journal of Foot & Ankle Surgery was identified as the most productive journal. Key contributors, including Coughlin, Dayton, and Hyer, were highlighted for their significant impact, particularly in advancing the modified Lapidus procedure. Keywords such as "hallux valgus," "modified Lapidus," and "bunion" were the most frequent, with a noticeable rise in studies focusing on multiplanar corrections and modern fixation techniques since 2020.Conclusion: This bibliometric analysis underscores the growing prominence of the modified Lapidus procedure, driven by technological advancements and improved surgical outcomes. The findings reveal notable gaps in global collaboration, emphasizing the need for international partnerships. This study provides a comprehensive overview of current trends, offering a foundation for future clinical research and innovation in hallux valgus correction.