Gait Analysis and Functional Outcomes Following Ankle Arthrodesis for Isolated Ankle Arthritis
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND: The functional outcomes following ankle arthrodesis are not known. The purpose of the present study was to compare the intermediate-term clinical results for a group of patients in whom an ankle arthrodesis had been performed with use of modern surgical techniques with the findings for a group of healthy gender and age-matched controls on the basis of validated outcome measures and gait analysis. METHODS: Twenty-six patients who had undergone ankle arthrodesis for the treatment of isolated unilateral ankle arthritis were identified and retrospectively assessed clinically and radiographically. The mean age at the time of surgery was fifty-four years, and the mean interval between surgery and assessment was forty-four months. A gender and age-matched control group of twenty-seven individuals was recruited for comparison. All subjects were evaluated with gait analysis, the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot scale, the Musculoskeletal Outcomes Data Evaluation and Management Systems (MODEMS) questionnaire, and the Ankle Osteoarthritis Scale (AOS). RESULTS: On preliminary review, twenty of the twenty-six patients were completely satisfied or satisfied with their surgical outcome. All patients but one stated that they would undergo the surgery again. Five patients stated that they did not notice a gait abnormality. Twelve patients wore orthotics, and all believed that the use of the orthotics improved their gait. When the functional outcome scores in the arthrodesis group were compared with those in the control group, specific scores assessing hindfoot pain and satisfaction were similar. However, scores focusing on ankle-hindfoot function and disability revealed significant differences. Gait analysis also identified significant differences between the two groups with regard to cadence and stride length. In addition, there was significantly decreased sagittal, coronal, and transverse range of motion of the hindfoot and midfoot during the stance and swing phases of gait in the arthrodesis group. Radiographic review demonstrated that four of the twenty-six patients had development of moderate to severe arthritis of the subtalar joint. CONCLUSIONS: In the intermediate term following an arthrodesis for the treatment of end-stage ankle arthritis, pain is reliably relieved and there is good patient satisfaction. However, there are substantial differences between patients and the normal population with regard to hindfoot function and gait. On the basis of these results, patients should be counseled that an ankle fusion will help to relieve pain and to improve overall function; however, it is a salvage procedure that will cause persistent alterations in gait with a potential for deterioration due to the development of ipsilateral hindfoot arthritis.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| 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) | 0.000 | 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