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Minimally invasive removal of dumbbell shaped schwannomas with transforaminal lumbar fusion: a retrospective study with a minimum 3-year follow-up – Lumbar Fusion

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The article discusses the lack of standardized guidelines for the surgical treatment of dumbbell-shaped tumors in the lumbo-foraminal region. The study aimed to evaluate the effectiveness of minimally invasive resection of lumbar schwannomas combined with interbody fusion and stabilization. The retrospective study included 13 patients who underwent the procedure, with positive outcomes in terms of surgery time, blood loss, hospital stay, and postoperative improvements in clinical parameters. The findings suggest that minimally invasive facetectomy combined with fusion technology can safely and effectively treat dumbbell-shaped schwannomas

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
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Published article

: Minimally invasive facetectomy through posterolateral approach with MI TLIF technology can be used for safe and effective resection of dumbbell-shaped schwannomas Eden type 2 and 3.

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Zh Vopr Neirokhir Im N N Burdenko. 2024;88(2):47-53. doi: 10.17116/neiro20248802147. ABSTRACT Currently, there are no standards in surgical treatment of dumbbell-shaped tumors of lumbo-foraminal region. OBJECTIVE: To evaluate the effectiveness and long-term results of minimally invasive resection of dumbbell-shaped lumbar schwannomas Eden type 2 and 3 combined with transforaminal lumbar interbody fusion and transpedicular stabilization.,

Zh Vopr Neirokhir Im NN Burdenko. 2024;88(2):47-53. doi: 10.17116/neiro20248802147.

ABSTRACT

Currently, there are no standards in surgical treatment of dumbbell-shaped tumors of lumbo-foraminal region.

OBJECTIVE: To evaluate the effectiveness and long-term results of minimally invasive resection of dumbbell-shaped lumbar schwannomas Eden type 2 and 3 combined with transforaminal lumbar interbody fusion and transpedicular stabilization.

MATERIAL AND METHODS: A retrospective study included 13 patients (8 men and 5 women) with lumbar dumbbell tumors Eden type 2 and 3 who underwent minimally invasive facetectomy through posterolateral anatomical corridor, microsurgical tumor resection and MI TLIF. We analyzed intraoperative parameters, neurological functions (ASIA scale), clinical characteristics (ODI, SF-36), and complications. Resection quality and area of the multifidus muscle were assessed according to MRI data. All patients were followed-up throughout at least 3-year.

RESULTS: Surgery time was 147 min, blood loss – 118 ml, hospital-stay – 7 days. Clinical parameters significantly improved in the follow-up period: ODI score decreased from 72 to 12 (p=0.004), SF-36 PCS increased from 26.24 to 48.51 (p=0.006) and MCS score increased from 29.13 to 53.68 (p=0.002). According to MRI data, no tumor recurrences and severe muscle atrophy (>30%) were observed after 3 years in all cases. Superficial wound infection occurred in 1 (7.7%) case. There were normal neurological functions (ASIA type E) in all patients.

: Minimally invasive facetectomy through posterolateral approach with MI TLIF technology can be used for safe and effective resection of dumbbell-shaped schwannomas Eden type 2 and 3.

PMID:38549410 | DOI:10.17116/neiro20248802147

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Minimally invasive removal of dumbbell shaped schwannomas with transforaminal lumbar fusion: a retrospective study with a minimum 3-year follow-up

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Zh Vopr Neirokhir Im N N Burdenko. 2024;88(2):47-53. doi: 10.17116/neiro20248802147. ABSTRACT Currently, there are no standards in surgical treatment of dumbbell-shaped tumors of lumbo-foraminal region. OBJECTIVE: To evaluate the effectiveness and long-term results of minimally invasive resection of dumbbell-shaped lumbar schwannomas Eden type 2 and 3 combined with transforaminal lumbar interbody fusion and transpedicular stabilization.

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