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The Operative Treatment using Porous Hydroxyapatite for Intraarticular Calcaneal Fractures of Joint Depression Type  

Choi, Eui-Sung (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Kim, Yong-Min (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Kim, Dong-Soo (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Shon, Hyun-Chul (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Park, Kyoung-Jin (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Cho, Byung-Ki (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Park, Ji-Kang (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Yoo, Jun-Il (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
Publication Information
Journal of Korean Foot and Ankle Society / v.14, no.1, 2010 , pp. 58-65 More about this Journal
Abstract
Purpose: This study was performed to evaluate the clinical outcomes of operative treatment using porous hydroxyapatite for intraarticular calcaneal fracture of joint depression type. Materials and Methods: Twenty patients with intraarticular calcaneal fracture were followed up for more than 1 year. The period to union was calculated to evaluate the osteoconductivity of porous hydroxyapatite used as bone graft substitute. The measurement of Bohler angle, Gissane angle and the degree of articular surface depression was performed through preoperative and postoperative radiographs. The clinical evaluation was performed according to hindfoot score of the American Orthopaedic Foot and Ankle Society (AOFAS) and scale of the Creighton-Nebraska health foundation (CNHF). Results: Bohler angle and Gissane angle had improved significantly from preoperative average $10.4^{\circ}$, $117.8^{\circ}$ to average $22.6^{\circ}$, $113.5^{\circ}$ immediate postoperatively, and had maintained to average $21.2^{\circ}$ and $114.4^{\circ}$ at the last follow-up. The degree of articular surface depression had improved significantly from preoperative average 4.8 mm to 1.5 mm at the last follow-up. All cases achieved bone union, and the interval to union was average 12.8 weeks. AOFAS score was average 85.2 points at last follow-up. There were 7 excellent, 10 good, and 3 fair results according to the CNHF scale. Therefore, 17 cases (85%) achieved satisfactory results. Conclusion: Plate fixation using porous hydroxyapatite seems to be one of effective treatment methods for intraarticular calcaneal fracture of joint depression type, because of supporting the reduction of subtalar articulation by augmenting bony defect and facilitating bone formation. Further evaluation about long-term radiological changes and histological analysis on hydroxyapatite implantation site should be required.
Keywords
Calcaneal fracture; Joint depression type; Operative treatment; Porous hydroxyapatite;
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Times Cited By KSCI : 5  (Citation Analysis)
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