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KMID : 0386720010130030221
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Journal of the Korean Hip Society
2001 Volume.13 No. 3 p.221 ~ p.228
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Analysis of Prognostic Factors for Intertrochanteric Fracture of Femur Treated with the Compression Hip Screw
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Choy Won-Sik
Ahn Jae-Hoon
Kim Byung-Sung
Lee Kwang-Won
Kim Whoan-Jeang
Keum Teok-Seop
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Abstract
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Purpose: To analyze the significant factors associated with the union of femoral intertrochanteric fracture treated with compression hip screw (CHS).
Materials and Methods: Eighty-two intertrochanteric fracture patients were followed for more than 12 months after CHS operation. Patients were preoperatively classified by Evans type and Singh index. Postoperative adequacy of reduction, amount of available slide, screw position within the femoral head and tip-apex distance were measured, and the relationship between these foactors and the fracture union was statistically analyzed.
Results: Of the 21 stable and 61 unstable fratures, 12 were not united. Relative risk(RR) of nonuion for unstable fracture was 1.7, and of low Singh index was 2.0; however these variances were not statistically significant(p>0.05). Neither was the effect of screw position within the femoral head(p>0.05). RR of nonunion in the cases of inadequate reduction, which was defined as less than 0.6 of contact fraction, was 4.9, a statistically significant finding(p<0.05). RR of short length of available slide, defined as less than 10 ㎜, was 11.7, again a significant finding(p<0.05).
Conclusion: Adequacy of reduction and amount of available slide were determined to be singificant prognostic factors for the union of femoral intertrochanteric fracture, and should be seriously considered in postoperative rehabilitation.
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KEYWORD
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Femur, Intertrochanteric fracture, Compressin hip screw, Prognostic factor
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