The Value of the Tip - Apex Distance in Predicting Failure of Fixation of Intertrochanteric Fractures of the Hip / 대한정형외과학회잡지
The Journal of the Korean Orthopaedic Association
;
: 1239-1245, 1997.
Article
in Korean
| WPRIM
| ID: wpr-647768
ABSTRACT
Failure of fixation of intertrochanteric fractures that have been treated with a fixed-angle sliding hip-screw device is frequently related to the position of the lag screw in the femoral head. The purpose of this study is to introduce the concept of the tip-apex distance and to demonstrate its clinical usefulness as a predictor of cutout of the screw used for fixation of the intertrochanteric fractures of the hip. The tip-apex distance is the sum of the distance from the tip of the lag screw to the apex of femoral head on an anteroposterior radiograph and this distance on a lateral radiograph after controlling for magnification. To determine the value of tip-apex distance in the prediction of cutout of the lag screw, 67 intertrochanteric fractures that have been treated with a fixed-angle sliding hip screw device were studied. The minimum duration of follow-up was three months during which period all of the fractures either healed or had failure of the fixation. The average tip-apex distance was 21mm (range,22.8-65.8mm) for the successfully treated fractures compared with 35mm (range,8.4-65.8mm) for those in which the screw cutout. There was strong statistical relationship between an increasing tip-apex distance and the rate of cutout. An unstable fracture, a poor reduction were also associated with a significantly increased risk of failure due to cutout.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Follow-Up Studies
/
Femur
/
Head
/
Hip
/
Hip Fractures
Type of study:
Observational study
/
Prognostic study
Language:
Korean
Journal:
The Journal of the Korean Orthopaedic Association
Year:
1997
Type:
Article
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