Distal femoral varus osteotomy combined with tibial plateau fresh osteochondral allograft for post‐traumatic osteoarthritis of the knee
Bibliographic record
Abstract
PURPOSE: This study was conducted to examine the long-term survivorship and functional outcome of distal femoral varus osteotomy with fresh osteochondral allograft following failed lateral tibial plateau fracture surgery. We hypothesized that this procedure would be associated with a low rate of conversion to total knee arthroplasty (TKA) at medium to long-term follow-up. METHODS: A consecutive series of 27 of distal femoral varus osteotomy combined with fresh osteochondral allograft following (27 patients) conducted between January 1981 and January 2005 for failed lateral tibial plateau fracture was retrospectively reviewed. Outcome measures included the Knee Society Knee Score (KSKS) and Knee Society Function Score (KSFS) and conversion rates to TKA. RESULTS: The study group consisted of 15 females (55.6 %) and 12 males (44.4 %), with a median age of 41.2 years (range 17-62 years). The median follow-up was 13.3 years (range 2-31 years). The knee function scores improved significantly at 2 years post-surgery (p < 0.01) from a median of 54.6 points preoperatively to 83.8 points (KSKS) and median of 50.6 points to 71.1 points (KSFS) at 2 years post-distal femoral varus osteotomy with fresh osteochondral allograft following surgery. At most recent follow-up, 4/27 patients had required conversion to TKA, and one patient had fractured the FOCA, requiring revision of the allograft. The survivorship for distal femoral varus osteotomy with fresh osteochondral allograft following was 88.9 ± 4.6 % at 10 years, 71.4 ± 18.1 % at 15 years, and 23.8 ± 11.1 % at 20 years. CONCLUSION: The use of distal femoral varus osteotomy combined with fresh osteochondral allograft following in patients with failed lateral tibial plateau fracture results in the majority of patients having good or excellent clinical outcomes and significantly delays the need for TKA in most patients. LEVEL OF EVIDENCE: Case series, Level IV.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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".