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KMID : 0922220070070010031
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Journal of the Korean Musculoskeletal Transplantation Society
2007 Volume.7 No. 1 p.31 ~ p.37
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Subtalar Arthrodesis using Fresh-Frozen Structural Allogenic Bone Graft
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Kim Yeung-Jin
Kim Tae-Kyun
Kim Hyung-Joon
Yang Hwan-Deok
Wi Dae-Han
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Abstract
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Purpose: To evaluate result of subtalar fusion using cannulated screws and fresh-frozen structural allogenic bone graft in subtalar arthritis after calcaneal fracture.
Materials and Methods: Between May 2001 and May 2006, 11 patients(13 cases) who had subtalar arthritis underwent subtalar fusion with cannulated screws and fresh-frozen structural allogenic bone graft. Average age was 46 years. Radiographic analysis of the pre- and postoperative standing lateral X-rays were performed for evaluating the talocalcaneal height, calcaneal pitch angle, lateral talocalcaneal angle, and lateral talar declination angle. AOFAS Ankle-Hindfoot Scale was evaluated for clinical results.
Results: The union rate was 85%(11 of 13). The mean time to complete bone union was postop. 16.5 weeks(12~21). Radiographic analysis of the pre- and postoperative standing lateral X-rays showed an average increase of mean 8 mm in talocalcaneal height, mean 3.1 degrees in calcaneal pitch angle, mean 10 degrees in lateral talocalcaneal angle, and mean 11 degrees in lateral talar declination angle that were statistically significant(P<0.05). The change in the mean AOFAS Ankle-Hindfoot Scale score from 23±17 preoperatively to 72±14 postoperatively was statistically significant(P<0.05). Complications included 2 non-unions, 1 varus malalignment, 1 sural neuralgia, 1 prominent screw.
Conclusion: Subtalar fusion using cannulated screws and fresh-frozen structural allogenic bone graft in subtalar arthritis showed good results in terms of bone union, radiographic results, and functional improvement.
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KEYWORD
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Subtalar joint, Arthritis, Fusion, Fresh-frozen structural allogenic bone graft
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