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KMID : 0361620120470040286
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Journal of the Korean Orthopaedic Association
2012 Volume.47 No. 4 p.286 ~ p.292
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Minimum 5-Year Results of Titanium Tapered Stem with Alumina Bearing in Cementless Total Hip Arthroplasty Using a Modified Direct Lateral Approach
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Yoon Pil -Whan
Jeong Hyeon-Jang
Lee Ji-Ho
Kang Seung-Baek
Lee Jae-Hyup
Jo Chris H.
Han Hyuk-Soo
Rhee Seung-Hwan
Kim Ji-Hyeung
Yoon Kang-Sup
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Abstract
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Purpose: The purpose of the current study is to evaluate the clinical and radiographic outcomes of primary total hip arthroplasty (THA) using a single titanium tapered stem with alumina bearing, which was performed through a modified direct lateral approach.
Materials and Methods: One hundred twenty consecutive primary THAs were performed in 102 patients, and retrospectively reviewed. There were 53 men and 49 women of mean age 54 years, and all patients were followed for a minimum follow-up period of 5 years (range, 5-8.1 years). Clinical outcomes assessment consisted of calculation of the Harris hip score (HHS), and evaluation of the presence of thigh pain or limp. Sequential radiographs were evaluated for implant migration, osteolysis, reactive line, cortical hypertrophy, or evidence of component loosening.
Results: At the final follow-up, the mean preoperative HHS of 46 points improved to 94 points; and activity-related thigh pain occurred in two hips, and mild limps in four hips. There was no evidence of implant migration, osteolysis, or component loosening. Audible squeaking was present in two hips, without pain and radiographic abnormality. Dislocation occurred in three hips.
Conclusion: The minimum 5-year results of titanium tapered stem with alumina bearing in cementless primary THA, using a modified direct lateral approach, were encouraging.
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KEYWORD
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hip, total hip replacement, alumina ceramic, prosthesis
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