Triple pelvic osteotomy in the treatment of pincer type femoroacetabular impingement syndrome
Bibliographic record
Abstract
Abstract Purpose: Femoroacetabular impingement (FAI) syndrome is a dynamic cause of hip arthritis, and it is commonly diagnosed in young adults without any other causes of hip joint pain. Pincer type FAI, which is discussed in this study, is typically present in active middle-aged females. The aim of the present study is to evaluate a series of patients that were operated for pincer FAI or combined type FAI, their clinical and radiological results, and the complications of operative treatment.Methods: Eighteen patients diagnosed with pincer/combined type FAI received triple pelvic reverse osteotomy between 2011 and 2020. The average age of the patients was 37.3 years (28.0-45.0), and middle age follow-up was performed. MRI scans were measured to see exact retroversion of the acetabulum before and after operation. Evaluations were subjectively made with Harris Hip Scores (HHSs), Visual Analog Scale (VAS) scores, and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores, with Wilcoxon tests for paired samples (the level of significance was set at 95%, p<5%). Comparison of pre- and post-operative data was performed to evaluate clinical outcomes in a series of patients who underwent surgical treatment. Results: Statistically significant increases were observed in scores and MRIs after triple pelvic osteotomy surgery for the treatment of pincer FAI/combined type FAI. HHS increased from 55.1 to 91.4, pre-operative MRI retroversion was at a median of 5.35 degrees, and post-operative MRI retroversion was at 26.35 degrees. WOMAC scores were pre-operatively at a median of 69.9 and post-operatively at 94.15, p<7.629 x 10-6 – statistically proved significance. Medium-term follow-up indicated that the surgeries were successful. In our series of patients treated with triple pelvic osteotomy, 22% (4 in 18 patients) appeared to have clinically rear pelvic FAI when tested after the operation. This result was not taken as significant due to small sample size. Conclusion: This technique is a safe procedure to restore hip mobility. This is an extraarticular operation, and therefore safely may be used to address intraarticular arthritis.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".