Clinical effect of posterior lumbar osteotomy on severe thoracolumbar kyphosis complicated with ankylosing spondylitis

YANG Yunfei; HUANG Lijun; XIA jiyuan; XIA Qingfu; ZHAO Guofeng; TIAN Xinqi; LIU Chang

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Medical Journal of the Chinese People Armed Police Forces ›› 2022, Vol. 33 ›› Issue (7) : 594-598.

ORIGINAL ARTICLES

Clinical effect of posterior lumbar osteotomy on severe thoracolumbar kyphosis complicated with ankylosing spondylitis

YANG Yunfei¹, HUANG Lijun¹, XIA jiyuan², XIA Qingfu¹, ZHAO Guofeng¹, TIAN Xinqi¹, LIU Chang¹

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Abstract

Objective To evaluate the clinical efficacy of posterior lumbar osteotomy in the correction of severe thoracolumbar kyphosis complicated with ankylosing spondylitis(AS).Methods From October 2020 to June 2021, ten patients with thoracolumbar kyphosis complicated with AS and one patient complicated with Andersson lesion (AL) were treated, with an average age of 32.8±3.4 years; All patients had low back pain and kyphosis deformity. The preoperative thoracic kyphosis angle was 59.36°±12.63°, with lumbar lordosis angle of -0.54°±32.89° and chin eyebrow angle of 31.82°±12.25°. The above ten patients underwent pedicle subtraction osteotomy (PSO) in L₂, and the only one patient was treated with posterior lumbar debridement and osteotomy. Comprehensive evaluation of postoperative imaging, clinical efficacy and complications were performed.Results The operation was successful and well tolerated. The average postoperative thoracic kyphosis angle was 55.18°±11.59°, with lumbar lordosis of 43.91°±19.14° and chin eyebrow angle of 1.82°±0.83°. All patients were followed up without vascular and nerve injury, stress fracture or other major complications.Conclusion PSO correction through L₂ for severe kyphosis complicated with AS and the osteotomy in treating kyphosis combined with AL are safe and reliable.

Key words

ankylosing spondylitis / Andersson lesion / kyphosis / osteotomy

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YANG Yunfei, HUANG Lijun, XIA jiyuan, XIA Qingfu, ZHAO Guofeng, TIAN Xinqi, LIU Chang. Clinical effect of posterior lumbar osteotomy on severe thoracolumbar kyphosis complicated with ankylosing spondylitis[J]. Medical Journal of the Chinese People Armed Police Forces. 2022, 33(7): 594-598

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