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KMID : 0361620090440030336
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Journal of the Korean Orthopaedic Association
2009 Volume.44 No. 3 p.336 ~ p.343
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Open Wedge High Tibial Osteotomy with Aesculaⓡ Plate
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Song Eun-Kyoo
Park Sang-Jin
Cho Nam-Young
Seon Jong-Keun
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Abstract
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Purpose: This study is to evaluate chinical and radiological results of open wedge high tibial osteotomy using Aesculaⓡ plate.
Materials and Methods: Ninity one patients who have unicompartmental osteoarthritis with varus deformity were treated by open wedge high tibial osteotomy with Aesculaⓡ plate and followed up at least 2 years. Clinically, visual analogue scale (VAS), range of motion (ROM) and hospital for special surgery (HSS) score were evaluated. Radiologically, tibio-femoral angle, mechanical axis, medial proximal tibia angle and posterior slope were measured. All complications were also evaluated.
Results: During the follow-up VAS improved from 8.3 to 2.1, ROM were checked preoperatively from 1.3˚ to 137˚ and from 1.8˚ to 136.1˚ at last follow up. And HSS score improved from 76.8 to 91. Preoperative tibio-femoral angle was 0.4˚ of varus, mechanical axis 6.4˚ of varus, medial proximal tibia angle 84.4˚ and posterior slope 9.3˚. Radiologic results at last follow up revealed significant improvements by 8.3˚ of valgus for tibio-femoral angle, 1.8˚ of valgus for mechanical axis and 90.1˚ for medial proximal tibia angle. Mean posterior slope was 10.4˚ which increased 1.1˚ compared with preoperative one. And there was one fixation failure that needed re-operation.
Conclusion: Open wedge high tibial osteotomy using Aesculaⓡ provided excellent clinical and radiological results at 2 years follow-up.
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KEYWORD
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Unicompartmental knee osteoarthritis, Open wedge high tibial osteotomy, Aesculaⓡ plate
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