Cementless Bipolar Hemiarthroplasty for Femoral Neck Fractures in Elderly Patients

Won Sik Choy; Jae Hoon Ahn; Hack Jae Jeong; Seung Hun Lee; Dong Hyun Yang; Byoung Sup Kam; Je-Yoon Koo

doi:10.4055/jkoa.2008.43.6.703

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Choy, Ahn, Jeong, Lee, Yang, Kam, and Koo: Cementless Bipolar Hemiarthroplasty for Femoral Neck Fractures in Elderly Patients

Original Article

Journal of the Korean Orthopaedic Association

Journal of the Korean Orthopaedic Association 2008; 43(6): 703-709.

Published online: 31 December 2008

DOI: https://doi.org/10.4055/jkoa.2008.43.6.703

Cementless Bipolar Hemiarthroplasty for Femoral Neck Fractures in Elderly Patients

Won Sik Choy, M.D., Jae Hoon Ahn, M.D., Hack Jae Jeong, M.D., Seung Hun Lee, M.D., Dong Hyun Yang, M.D., Byoung Sup Kam, M.D., Je-Yoon Koo, M.D.

Department of Orthopaedic Surgery, Eulji University College of Medicine, Daejeon, Korea.

Address reprint requests to Jae Hoon Ahn, M.D. Department of Orthopaedic Surgery, Eulji University College of Medicine, 1306, Dunsan-dong, Seo-gu, Daejeon 302-799, Korea. Tel: +82.42-611-3280, Fax: +82.42-259-1289, jhahn@eulji.ac.kr

Abstract

Purpose

The purpose of this study was to evaluate clinicoradiological outcomes after cementless bipolar hemiarthroplasty in elderly patients with femoral neck fractures.

Materials and Methods

Eighty hips-all in patients greater than 70 years of age-were followed for more than 2 years after undergoing cementless bipolar hemiarthroplasty with a tapered cementless stem (Lima SPH-C2®). The mean age was 76 years, and the mean follow-up period was 37 months. The Harris hip score and postoperative hip pain were analyzed clinically. The radiological results were assessed using various radiological indices.

Results

At last follow-up, the mean Harris hip score was 80.2 points. There was one case of significant hip pain. Fifty-five cases (68.7%) showed no decrease in ambulation capacity postoperatively. Radiologically, there were 47 cases (58.7%) of bone ingrowth and 33 cases (41.3%) of stable fibrous fixation. There were no cases of osteolysis, and 30 cases (37.5%) exhibited new bone formation around the stem. All stems were stable without significant alignment change or progressive subsidence.

Conclusion

Short-term outcomes proved to be satisfactory in elderly patients undergoing cementless bipolar hemiarthroplasty for femoral neck fractures.

Keywords: Old age, Femoral neck fracture, Cementless bipolar hemiarthroplasty

Figures and Tables

Fig. 1

(A) A 75-year-old woman had a femoral neck fracture in type B proximal femur. (B) The postoperative radiograph shows excellent metaphyseal fit of cementless tapered femoral stem. (C) At postoperative 37 months, the radiograph shows stable fixation of femoral component without subsidence or changes in alignment.

Table 1

Patient Demographics

Table 2

Functional Results after Hemiarthroplasty (Hips (%))

Table 3

Radiologic Findings around the Femoral Stem

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