Clinical efficacy of preoperative osteotomy designs using paper-cut technology versus photoshop software for ankylosing spondylitis with kyphosis / 中国组织工程研究

ABSTRACT

BACKGROUND: There are various kinds of design methods about preoperative osteotomy of ankylosing spondylitis with kyphosis, but each has their own errors and limitations. A convenient, precise and available method needs to bedeveloped.OBJECTIVE: To compare the clinical efficacy of two different preoperative osteotomy designs using paper-cut andphotoshop software for ankylosing spondylitis with kyphosis.METHODS: Thirty-nine patients suffering ankylosing spondylitis with kyphosis undergoing osteotomy in the Departmentof Spinal Surgery, Affiliated Hospital of Yan'an University between June 2009 and January 2015 were enrolled, andrandomly allotted to paper-cut (n=19) and photoshop (n=20) groups, followed by the preoperative osteotomy design,respectively. All patients were followed for 12-40 months to compare the postoperative osteotomy angle error andcorrection efficacy at the last follow-up between groups.RESULTS AND CONCLUSION: (1) The postoperative osteotomy angle error in the photoshop group was significantly smaller than that in the paper-cut group (P 0.05). (4) To conclude, compared with the osteotomy design usingtraditional paper-cut splice, the photoshop software can achieve a smaller osteotomy angle error and better postoperative balance of spinal sagittal plane, thus providing precise osteotomy for surgeons to obtain proper correction.