Treatment of special proximal femoral fractures with less invasive stabilization system
Bibliographic record
Abstract
Objective To discuss the indications, surgical techniques and outcome of less invasive stabilization system (LISS) in treatment of special proximal femoral fractures. Methods Twenty-eight patients with special proximal femoral fractures were treated with LISS from June 2005 to December 2007. All fractures could not be reduced by close reduction with traction table. There were eight patients with in-tertrochanterie fractures ( including type 31-A2.2 fractures in three, type 31-A2.3 in two, type 31-A3.1 in three and type 31-A3.3 in two according to AO classification), 19 with subtrochanteric fractures (including type ⅡA fractures in three, type ⅢB in one and type Ⅴ in 15 according to Seinsheimer classification) and one with peripheral fractures ( type Vancouver B1 fracture) of the femoral prosthesis. The data about opera-tion duration, intraoperative blood loss, postoperative complications, fracture healing time and postoperative hip function score were recorded. Results The operation lasted for mean 88 minutes (45-120 minutes), with intra-operative blood loss of average 320 ml (50 -700 ml). There occurred deep vein thrombosis of lower limb in two patients, myocardial infarction in one and lower digestive tract bleeding in one after oper-ation, with no incision complications. One patient with breast cancer was died of brain metastasis after op-eration and three lost follow-up. Other 24 patients were followed up for mean 18 months (6-33 months), which showed that 23 patients got fracture healing 2-5 months ( average 3 months) postoperatively but that one patient with type Seinsheimer V fracture had breakage of proximal locking screws six months postopera-tively because of nonunion of subtrochanteric fracture. The Harris score of the hip was 70-99 points ( aver-age 84 points). Conclusions Reverse femoral LISS has advantages of minimal invasion, easy opera-tion, stable fixation, high degree of safety and minor complications for treatment of special proximal femoral fractures. Skillful reduction, correct positioning of guide wire into hole A and avoidance of immediate weight bearing are key to success of the operation. Key words: Femoral fractures; Fracture fixation, intramedullary; Less invasive stabilizationsystem
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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".