Arthroscopic Surgery for Synovial Chondromatosis of the Hip: A Systematic Review of Rates and Predisposing Factors for Recurrence
Why this work is in the frame
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Bibliographic record
Abstract
PURPOSE: Synovial chondromatosis of the hip is a benign condition whereby pain and functional limitations occur due to numerous intra-articular osteochondral fragments produced by a metaplastic synovium. Recurrence not only worsens morbidity but may lead to malignant transformation. With reported recurrence rates as high as 22% by open surgical approaches and given the increasing use of hip arthroscopy for the treatment of synovial chondromatosis, we sought to quantify the recurrence rate after arthroscopy, as well as identify predisposing factors for recurrence. METHODS: Using predetermined inclusion criteria, 3 electronic databases--Embase, Medline, and PubMed-were searched for relevant articles addressing arthroscopic surgery for synovial chondromatosis of the hip across all available dates up to and including February 16, 2014. A hand search of the reference sections of the included studies was also completed. Article screening was conducted in duplicate. Reviewer agreement statistics and descriptive statistics of the included studies are presented. RESULTS: From an initial retrieval of 2,542 studies, 14 studies satisfied the criteria for inclusion. A total of 197 patients (age range, 13 to 81 years) underwent hip arthroscopy for removal of intra-articular osteochondral fragments and synovectomy to alleviate both mechanical symptoms and pain. Follow-up periods ranged from 1 to 184 months, with approximately 7.6% of patients (15 of 197) lost to follow-up. The recurrence rate after hip arthroscopy was 7.1% (14 of 197), and the rate of minor complications, such as perineal and pedal neurapraxia, was 1%. CONCLUSIONS: For synovial chondromatosis of the hip, arthroscopic removal of osteochondral fragments with synovectomy is both safe and effective, with a mean recurrence rate of 7.1%. LEVEL OF EVIDENCE: Level IV, systematic review of Level IV studies.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.006 | 0.002 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it