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J Korean Hip Soc. 2012 Mar;24(1):25-31. Korean. Original Article.
Lim YW , Lee KH , Bae SH , Kwon SY .
Department of Orthopaedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.

PURPOSE: We compared the clinical and radiological outcomes of total hip arthroplasty (THR) using Summit and Bencox stems. MATERIALS AND METHODS: The patients who underwent cementless total hip arthroplasty were recruited with a satisfactory condition of a minimum three years of follow-ups after THR. Those patients were divided into two groups, those with Summit stems and those with Bencox stems. Summit stems were in 36 patients(40 hips), and Bencox stems in 36 patients(48 hips). Summit and Bencox stems had 78 months and 42.2 months as a mean follow-up, respectively. The clinical and radiological evaluations of femoral components were performed. RESULTS: There was no difference in clinical results between the two groups. Under the radiological findings, there were no osteolytic changes or loosening. Osseointegration was detected at an average of 6.4 months(3-12 months) in the Bencox stem on the distal portion of the femoral stem, and cortical hypertrophy was detected on 6 hips with a Summit stem. CONCLUSION: The clinical and radiological evaluations in both systems showed excellent outcomes at the three year follow-ups, and there was no statistical difference on the clinical and radiological results between the two groups. Thigh pain and cortical hypertrophy were not detected in the Bencox stem, and that wound would be caused by surface treatment methods of the femoral stem, and morphological differences.

Copyright © 2019. Korean Association of Medical Journal Editors.