ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2026
Posterior unilateral approach with unilateral pedicle and contralateral laminar screw combined with lateral mass reconstruction for cervical dumbbell tumors: case series and technical note.
Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo investigate the safety, efficacy, and radiological outcomes of posterior unilateral approach with unilateral pedicle screw + contralateral laminar screw + lateral mass reconstruction (UPS + CLS+LM) for cervical dumbbell tumors in a consecutive case series.
methodsA single-center retrospective study was performed on 10 consecutive patients with cervical dumbbell tumors treated with UPS + CLS+LM reconstruction between April 2018 and April 2025. Perioperative parameters (operative time, estimated blood loss [EBL]), clinical outcomes (Japanese Orthopaedic Association [JOA] score, neurological improvement rate), and radiographic outcomes (gross total resection [GTR] rate, bony fusion rate, implant-related complications) were collected and analyzed. Paired t-test was applied to compare preoperative and postoperative JOA scores.
resultsAll 10 patients achieved 100% GTR and 100% solid bony fusion, with a mean follow-up of 31.70 ± 26.80 months. The mean 17-point JOA score improved significantly from 13.60 ± 1.35 preoperatively to 16.70 ± 0.67 at final follow-up (t = - 9.86, P < 0.0001), with a mean neurological improvement rate of 88.9%. No implant failure, cervical segmental instability, or tumor recurrence was detected in this case series.
conclusionThe UPS + CLS+LM technique appears safe and effective for unilateral cervical dumbbell tumors in this case series. It achieves complete tumor resection and reliable cervical stability, preserves the contralateral musculoligamentous complex, minimizes iatrogenic injury, and shows favorable clinical value for unilateral cervical dumbbell tumors in this case series.
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