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The Short Term Results of Radial Head Arthroplasty with Unipolar Loose Fit Stem
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Su Keon Lee, Kyeong Seop Song, Seung Hwan Lee, Sang Pil Yoon, Sang Youn Lim
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J Korean Fract Soc 2015;28(2):125-131. Published online April 30, 2015
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DOI: https://doi.org/10.12671/jkfs.2015.28.2.125
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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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Unstable Intertrochanteric Fracture Treated with ITST: A Comparative Study between Groups with and without Comminution of Greater Trochanter
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Kyung Sub Song, Sang Ho Lee, Seong Hun Jeong, Su Keon Lee, Sung Ha Hong
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J Korean Fract Soc 2014;27(1):36-41. Published online January 31, 2014
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DOI: https://doi.org/10.12671/jkfs.2014.27.1.36
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Abstract
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- PURPOSE
To evaluate whether the radiological and clinical results of treatment with intertrochanteric/subtrochanteric (ITST) nail on unstable intertrochanteric fractures are combined with comminution of the greater trochanter or not.
MATERIALS AND METHODS
We reviewed the results on 210 cases of unstable intertrochanteric fractures (grouped 88 patients with comminution of greater trochanter [GT] and 122 patients without comminution of GT) treated with ITST nail from January 2007 to October 2011, which was to be followed-up for more than 12 months.
RESULTS
The mean union time was 15.2 weeks in the study group (combined with comminution of GT). The mean union time was 14.7 weeks in control group (no comminution of GT). The lag screw sliding was 8.7 mm in the study group and 7.2 mm in the control group. Changes of neck-shaft angle was 4.2degrees in study group and 4.1degrees in control group. Tip-apex distance was 17.4 mm in study group and 16.4 mm in control group. The complications were 4 cases in each study group and control group. The clinical results checked by Skovron recovery scores decreased similarly in both groups, 73.7% in study group and 76.5% in control group. There were no significant differences in both groups according to radiological and clinical results.
CONCLUSION
The comminution of great trochanter does not affect on the radiological and clinical results when using the ITST nail of unstable intertrochanteric fractures.
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