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KMID : 0386420150280020125
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Journal of the Korean Fracture Society
2015 Volume.28 No. 2 p.125 ~ p.131
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The Short Term Results of Radial Head Arthroplasty with Unipolar Loose Fit Stem
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Lee Su-Keon
Song Kyung-Sub
Lee Seung-Hwan
Yoon Sang-Pil
Lim Sang-Youn
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Abstract
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Purpose: We report short-term results of radial head prosthesis using a unipolar loose fit stem in ten patients.
Materials and Methods: Ten patients with Mason type three radial head fracture, who received unipolar radial head arthroplasty from February 2010 to June 2011, were evaluated (mean follow-up: 22 months, range: 18-30 months). Subjects consisted of five men and five women. Range of elbow motion was measured. Mayo elbow performance index (MEPI) score was used for functional evaluation and periodic radiological imaging was performed to evaluate the stability of implant.
Results: After an average follow-up of 22 months, elbow stability was maintained in all cases, and the average range of motion of elbow flexion and extension was 6 to 130 degrees. Average range of pronation and supination was 66 and 74 degrees, respectively. MEPI score was evaluated as excellent in seven cases, and good in three cases. On final follow-up, radiological assessment showed implant stability in all cases without evidence of dislocation, subluxation, arthritis, periprosthetic osteolysis or heterotopic ossification.
Conclusion: Based on our short-term follow-up, radial head arthroplasty with unipolar loose fit stem is a useful method for obtaining satisfactory outcome for unreducible comminuted radial head fractures.
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KEYWORD
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Elbow, Radial head fracture, Unipolar radial head arthroplasty, Loose fit stem
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