Internal derangement of temporomandibular joint: Umbrella perforated screw technique
Bibliographic record
Abstract
INTRODUCTION: Umbrella shaped Perforated Screws (UPS) were developed for the use of orthopedic surgery to facilitate anchoring and fixation of the tissue to bone. We here present a retrospective study of Temporomandibular joint Internal derangement (ID) with fixation using this type of screws. MATERIALS & METHODS: We conducted a retrospective study including patients treated for ID using UPS to reposition the articular disc. The study included patients treated between 1998 and 2005. Patients were selected in concordance with clinical symptoms and signs of severity. All patients had an MRI (open/closed mouth) to confirm the diagnosis. Wilkes classification of temporomandibular disease (TMD) was adopted in the selection criteria. RESULTS: Hundred and five patients were included, 92 female and 13 males with average age of 37.56. Dentists or general physicians mainly addressed these patients to our unit. The mean time from symptoms initiating to first consultation was 3.77 years, while the mean timing of surgery after initial consultation was 9.38 months. Patients have presented with various symptoms before the surgery including pain, limitation in eating habits and clicking. 77% of the patients had no or minimal pain post surgery. Hundred and one patients had good eating habits after surgery. Only 34 patients had persistent clicking despite surgery. We had neither infection nor hematoma as complication. Major complication to this technique is frontal paresis (14 patients), which was explained to all patients preoperatively. This paresis recovered in less than 2 months in all patients. We had 89.5% of the patients satisfied with their results. CONCLUSION: UPS are useful in the field of plastic surgery. This novel technique has the advantage of not compromising the vascular supply of the TMJ articular surface. This technique provides a simple, fast and efficient technique for posterior aponeurosis flap fixation. Our overall satisfactory rate was comparable to other studies.
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How this classification was reachedexpand
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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".