• Yu-Yi Huang, Tsai-Sheng Fu, Dong-Yi Lin, Yun-Da Li, Ying-Chih Wang, Chak-Bor Wong, and Chia-Wei Chang.
• Department of Orthopaedic Surgery, Keelung Branch of Chang Gung Memorial Hospital, Keelung, Taiwan.
• Pain Physician. 2021 Dec 1; 24 (8): E1237-E1245.

BackgroundThe traditional treatment for an instrumented vertebral fracture involves removing the loosened pedicle screws and extending the posterior instrumentation cephaladly or caudally. There has been a recent trend of performing minimally invasive fluoroscopy-guided percutaneous vertebroplasty as a salvage procedure.ObjectiveThe aim of this study was to compare the outcomes of surgical interventions for instrumented vertebral fracture.Study DesignRetrospective assessment.SettingAll data came from Chang Gung Memorial Hospital, Taiwan.MethodsWe retrospectively reviewed 35 patients with an instrumented vertebral fracture who underwent fluoroscopy-guided percutaneous vertebroplasty (Group I, n = 16) or extension of the posterior instrumentation (Group II, n = 19). Demographic data were recorded. The operating time, amount of intraoperative blood loss, time to postoperative ambulation, and duration of hospital stay were also evaluated. The visual analog scale (VAS) score, kyphotic angle on radiological images, Kirkaldy-Willis functional score, complications, and revision surgery were evaluated at one week and one, 3, 6, and 12 months postoperatively.ResultsGroup I had a shorter operating time (P < 0.001), less intraoperative blood loss (P < 0.001), earlier postoperative ambulation (P < 0.001), and a shorter hospital stay (P < 0.001). The mean VAS score improved significantly after surgery in both groups (P = 0.001). The postoperative kyphotic angle was better in Group II (P < 0.05). There was no significant between-group difference in the Kirkaldy-Willis functional score at the last follow-up (P = 0.91). There was no significant between-group difference in the need for revision surgery (Group I, n = 4; Group II, n = 5; P = 0.93).LimitationThis study is a retrospective cohort.ConclusionsMinimally invasive fluoroscopy-guided percutaneous vertebroplasty can be used as an alternative to extension of posterior instrumentation for instrumented vertebral fracture. It has several advantages, including a shorter operating time, earlier postoperative ambulation, less blood loss, and a shorter hospital stay. The clinical outcomes of these 2 treatment approaches were similar.

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