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KMID : 0386720040160030386
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Journal of the Korean Hip Society
2004 Volume.16 No. 3 p.386 ~ p.391
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Results of Cementless Hemiarthroplasty for Elderly Patients with Unstable Intertrochanteric Fractures
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Hwang Deuk-Soo
Kwak Sang-Koo
Woo Se-Min
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Abstract
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Purpose: To evaluate the short term results of elderly patients with an unstable intertrochanteric fracture treated with bipolar hemiarthroplasty using a cementless conical stem.
Materials and Methods: From April 1998 to May 2002, Twenty-five patients underwent surgery using a cementless bipolar hemiarthroplasty with a conical femoral stem for an unstable intertrochanteric fracture at our hospital. The 20 patients who could be followed up were examined. The fracture types of the patients were an unstable fracture classified into grade III, and IV in the Kyle-Gustilo classification, type A2 in the AO classification and grade III, and Ⅳ fractures classified by the Tronzo classification. This study checked the degree of stem subsidence, the degree of varus deformity and stem osteolysis, loosening and the degree of union between the artificial joint and the proximal part of the fracture site.
Results: In most cases at the surgical fields comminution was was recognized as severe due to osteoporosis. These were a proximal fragment union in 17 cases with a union time of 15.4 weeks (range, 13.4~18.6 weeks). The average femoral stem subsidence was 4 mm(range, 2~7 mm). The average varus deformity was 5.3°(range, 0~12o). The postoperative complications encountered were one periprosthetic fracture during operation and one postoperative dislocation.
Conclusion: Bipolar hemiarthroplasty with a noncement conical stem for unstable intertrochanteric fractures in elderly patients showed relative good clinical results.
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KEYWORD
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Femur, Intertrochanteric fracture, Bipolar hemiarthroplasty, Conical femoral stem
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