• Yanyu Zhu, Zhenhui Zhang, Wentao Jiang, Kai Su, Zhongwei Wang, Chunping Wang, Chunli Wang, and Qingde Wang.
• Henan University of Chinese Medicine, Zhengzhou, China.
• Spine. 2021 Jul 1; 46 (13): 907-914.

Study DesignA retrospective review of clinical and radiological parameters.ObjectiveTo evaluate the therapeutic efficacy of transpedicular impaction bone grafting (TIBG) with long segmental posterior instrumentation for the treatment of stage III Kümmell disease.Summary Of Background DataThe optimal treatment for stage III Kümmell disease remains controversial and unclear. Theoretically, transpedicular bone grafting can reconstruct anterior column support and reduce the failure of internal fixation, which is an intuitive method for the treatment of Kümmell disease. However, the use of this technique has rarely been reported for the treatment of this disease. This study reported the clinical and radiological results of TIBG with long segmental posterior instrumentation for the treatment of stage III Kümmell disease.MethodsBetween August 2011 and December 2017, we retrospectively analyzed 24 patients with stage III Kümmell disease who underwent TIBG with long segmental posterior instrumentation. Anterior vertebral heights, kyphotic Cobb angle, visual analog scale (VAS), Oswestry disability index (ODI), and American Spinal Injury Association (ASIA) impairment scale were used to evaluate the effects of surgery.ResultsThe mean time to follow-up was 38.1 ± 10.2 months. The average operative duration was 136 ± 16.5 minutes, and the average intraoperative blood loss was 293 ± 41.3 mL. The VAS, ODI, anterior vertebral heights, and kyphotic Cobb angles were improved significantly at 1 week after surgery compared the preoperative examinations, and were well maintained at the final follow-up evaluation. Fourteen patients (58%) had mild neurological impairments before surgery, with neurological function returning to normal at the final follow-up evaluation. There was no instance of instrumentation failure.ConclusionTIBG combined with long segmental posterior instrumentation is a safe and effective surgical option for stage III Kümmell disease.Level of Evidence: 4.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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