Calculation of end displacement parameters in corrective osteotomy
ZHANG Hailong1, HAN Hongbin2, SHAO Hongyi3, GU Jianming3
1.Department of Education, 3. Department of Orthopaedic Surgery,Beijing Jishuitan Hospital, Beijing 100035, China; 2. Department of Radiology, Peking University Third Hospital, Beijing 100191, China
Abstract：Objective To develop a systemic approach for calculation of parameters describing geometrical displacement of cutting end. Methods A mathematical model was set up for calculation of spatial displacement of cutting end in corrective osteotomy with respect to different spatial position of center of rotation of angulation (CORA), angulation correction axis (ACA) and osteotomy point. Experimental results were compared with predicted value. Results Displacement of cutting end calculated by our mathematical model fit the experimental value well with no significant difference detected (P>0.05). Relative error of prediction using our model was less than 10%, which was better than Palay’s method with significant difference(P=0.005). Conclusions Approach presented in our work is good estimation of displacement of cutting end, which potentially facilitates the preoperative planning of corrective osteotomy.
Caskey P M,McMulkin M L,Gordon A B,et al. Gait Outcomes of Patients With Severe Slipped Capital Femoral Epiphysis After Treatment by Flexion-Rotation Osteotomy[J]. J Pediatr Orthop,2014,34(7):668-673.
[2]
Park Y S,Kim H S,Baek S W. Spinal osteotomy in ankylosing spondylitis: radiological, clinical, and psychological results[J]. Spine J,2014,14(9):1921-1927.
[3]
Haviv B,Bronak S,Thein R,et al. The results of corrective osteotomy for valgus arthritic knees[J]. Knee Surg Sports Traumatol Arthrosc,2013,21(1):49-56.
[4]
Skou S T,Wrigley T V,Metcalf B R,et al. Association of knee confidence with pain, knee instability, muscle strength, and dynamic varus-valgus joint motion in knee osteoarthritis[J]. Arthritis Care Res (Hoboken),2014,66(5):695-701.
[5]
Bar H F,Breitfuss H. Analysis of angular deformities on radiographs[J]. J Bone Joint Surg Br,1989,71(4):710-711.
[6]
Paley D,Herzenberg J E,Tetsworth K,et al. Deformity planning for frontal and sagittal plane corrective osteotomies[J]. Orthop Clin North Am,1994,25(3):425-465.
[7]
Sangeorzan B P,Judd R P,Sangeorzan B J. Mathematical analysis of single-cut osteotomy for complex long bone deformity[J]. J Biomech,1989,22(11-12):1271-1278.
[8]
Meyer D C,Siebenrock K A,Schiele B,et al. A new methodology for the planning of single-cut corrective osteotomies of mal-aligned long bones[J]. Clin Biomech (Bristol, Avon), 2005,20(2):223-227.
[9]
Paley D. Surgery for residual femoral deformity in adolescents[J]. Orthop Clin North Am,2012,43(3):317-328.
[10]
Fu M,Xiang S,Zhang Z,et al. The biomechanical differences of rotational acetabular osteotomy, Chiari osteotomy and shelf procedure in developmental dysplasia of hip[J]. BMC Musculoskelet Disord,2014,21:15-47.
Bae D K,Song S J,Kim H J,et al. Change in limb length after high tibial osteotomy using computer-assisted surgery:a comparative study of closed- and open-wedge osteotomies[J]. Knee Surg Sports Traumatol Arthrosc,2013,21(1):120-126.
[13]
Ohashi S,Ohnishi I,Kageyama T,et al. Distraction osteogenesis promotes angiogenesis in the surrounding muscles[J]. Clin Orthop Relat Res,2007,454:223-229.
[14]
Kanellopoulos A D,Soucacos P N. Management of nonunion with distraction osteogenesis[J]. Injury,2006,37:S51-S55.
2015, Vol. 26 
