Spine deformity · 2019
Transpedicular Wedge Resection Osteotomy of the Apical Vertebrae for the Treatment of Severe and Rigid Thoracic Kyphoscoliosis: A Retrospective Study of 26 Cases.
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Hua Wenbin, Zhang Yukun, Wu Xinghuo, Gao Yong, Li Shuai, Wang Kun, Yang Shuhua, Yang Cao
Аннотация
STUDY DESIGN: Retrospective analysis of clinical records.
OBJECTIVE: To determine the efficacy of transpedicular wedge resection osteotomy (TWRO) of the apical vertebrae to treat severe and rigid thoracic kyphoscoliosis in 26 adults.
SUMMARY OF BACKGROUND DATA: Although posterior vertebral column resection has traditionally been used to correct severe and rigid kyphoscoliosis, TWRO may achieve the same correction with a shorter operative time and lower rate of complications.
METHODS: Between May 2011 and December 2014, 29 adults underwent a TWRO of the apical vertebrae for severe and rigid thoracic kyphoscoliosis, and 26 adults completed the 24-month follow-up. Radiologic measurements, including coronal plane major curve, kyphotic curve, coronal offset, and sagittal offset, were measured and compared. The following patient-reported health-related quality of life outcomes, including Oswestry Disability Index score, visual analog scale score for back pain, and SRS-22 questionnaire, were used to evaluate the clinical outcomes.
RESULTS: For the 26 patients followed over 24 months, the mean coronal plane major curve improved from 107.6° to 37.5° immediately after surgery and to 40.0° at 24 months postoperatively. The mean kyphotic curve improved from 90.6° to 30.5° immediately after surgery and to 33.3° at 24 months postoperatively. The mean coronal offset and sagittal offset were also improved. Improved self-reported quality of life scores were achieved postoperatively and at 24 months postoperatively, including all domains of the SRS-22 questionnaire. Bony fusion was achieved at 6 or 12 months in all patients. Unilateral leg paresis occurred in one case and recovered after three months, with a neurologic complication rate of 3.8%.
CONCLUSIONS: TWRO of the apical vertebrae as a treatment for severe and rigid thoracic kyphoscoliosis in adult patients provided excellent clinical outcomes. However, the procedure remains technically demanding and exhausting, with a potential risk for complications.
LEVEL OF EVIDENCE: Level IV.
OBJECTIVE: To determine the efficacy of transpedicular wedge resection osteotomy (TWRO) of the apical vertebrae to treat severe and rigid thoracic kyphoscoliosis in 26 adults.
SUMMARY OF BACKGROUND DATA: Although posterior vertebral column resection has traditionally been used to correct severe and rigid kyphoscoliosis, TWRO may achieve the same correction with a shorter operative time and lower rate of complications.
METHODS: Between May 2011 and December 2014, 29 adults underwent a TWRO of the apical vertebrae for severe and rigid thoracic kyphoscoliosis, and 26 adults completed the 24-month follow-up. Radiologic measurements, including coronal plane major curve, kyphotic curve, coronal offset, and sagittal offset, were measured and compared. The following patient-reported health-related quality of life outcomes, including Oswestry Disability Index score, visual analog scale score for back pain, and SRS-22 questionnaire, were used to evaluate the clinical outcomes.
RESULTS: For the 26 patients followed over 24 months, the mean coronal plane major curve improved from 107.6° to 37.5° immediately after surgery and to 40.0° at 24 months postoperatively. The mean kyphotic curve improved from 90.6° to 30.5° immediately after surgery and to 33.3° at 24 months postoperatively. The mean coronal offset and sagittal offset were also improved. Improved self-reported quality of life scores were achieved postoperatively and at 24 months postoperatively, including all domains of the SRS-22 questionnaire. Bony fusion was achieved at 6 or 12 months in all patients. Unilateral leg paresis occurred in one case and recovered after three months, with a neurologic complication rate of 3.8%.
CONCLUSIONS: TWRO of the apical vertebrae as a treatment for severe and rigid thoracic kyphoscoliosis in adult patients provided excellent clinical outcomes. However, the procedure remains technically demanding and exhausting, with a potential risk for complications.
LEVEL OF EVIDENCE: Level IV.