• T Pitzen, Jörg Drumm, and M Ruf.
• Spine Surgery, Orthopedics and Traumatology, SRH Klinikum Karlsbad Langensteinbach, Guttmannstrasse 1, 76307, Karlsbad, Germany.
• Eur Spine J. 2024 Nov 1; 33 (11): 435343614353-4361.

IntroductionSH is considered to be the most common benign tumor within the human spine. 1-2% of SH get symptomatic with back pain in most cases. Less often, ingrowth of vessels into the spinal canal is seen. In these cases, more invasive surgical treatment is required. Recurrence of SH following surgical treatment is a very rare condition.MethodsWe present the results of a retrospective chart review, with description of the clinical course of 12 patients with spinal canal invading SH without recurrence and of 5 patients with a recurrent SH.ResultsRecurrence was diagnosed 70 months (mean value) after the first procedure. All patients with a recurrent SH had received an incomplete tumor resection as a first treatment. The distribution of gender, age at the diagnosis, levels involved by the tumor, and initial symptoms were comparable in the group of patients with and without recurrence. The patients with recurrent SH were treated with preoperative embolization and en bloc resection or complete piecemeal resection of the affected vertebra. For stabilization, a combined, circumferential fixation was used consisting in a TSM cage filled by bone graft and posterior pedicle screw rod instrumentation in all patients. We followed these patients until 09/ 2023, mean FU 122 months (range 72-184 months). At this time, we found no evidence of tumor recurrence, good clinical conditions in all patients, no signs of implant failure or pseudarthrosis.DiscussionThus, radical excision, sufficient stabilization and fusion is considered to be an adequate treatment concept for recurrent SH.© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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