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KMID : 0361620140490020126
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Journal of the Korean Orthopaedic Association
2014 Volume.49 No. 2 p.126 ~ p.132
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Result of a Minimum Five-Year Follow-Up of Hip Arthroplasty Using the Bencox® Hip Stem
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Lee Joong-Myung
Jeon Jae-Bum
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Abstract
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Purpose: The purpose of this study is to report the results of artificial hip arthroplasty with minimum five-year follow-up using the Bencox® (Corentec) hip stem, the first total hip prosthesis developed in Korea.
Materials and Methods: We evaluated 27 hips in patients with femoral neck or intertrochanteric fracture (fracture group) and 58 hips in patients with arthritis or osteonecrosis of the femoral head (arthritis group) who underwent hip arthroplasty using a Bencox® hip stem in combination with Bencox® bipolar cup and Bencox® acetabular cup between September 2006 and February 2008. Patients in the fracture group underwent bipolar hip arthroplasty, and those in the arthritis group underwent total hip arthroplasty.
Results: During the follow-up period, there were no cases of revision of the femoral stem. Mean Harris hip score was 94 at the latest follow-up in (femoral neck or intertrochanteric) the fracture group, and improved from 57 preoperatively to 98 at the latest follow-up in the arthritis (or avascular necrosis) group. Radiographically, endosteal bone ongrowth was found in 23 of 27 cases in the fracture group (85.2%) and 56 of 58 cases in the arthritis group (96.6%). Stem loosening, infection, dislocation, and ceramic breakage were not noted.
Conclusion: Clinical and radiographic evaluations of hip arthroplasty using the Bencox® hip stem showed excellent outcomes with a minimum of five-year follow-up.
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KEYWORD
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Bencox® hip stem, cementless hip replacement arthroplasty
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