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

Byvaltsev V.A.; Kalinin A.A.

doi:https://doi.org/10.17116/neiro20248802147

Byvaltsev V.A.

Irkutsk State Medical University;
Russian Railways-Medicine Clinical Hospital;
Irkutsk State Medical Academy of Postgraduate Education

ORCID: 0000-0003-4349-7101

Kalinin A.A.

Irkutsk State Medical University;
Russian Railways-Medicine Clinical Hospital

ORCID: 0000-0002-6059-4344

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

Authors:

Byvaltsev V.A., Kalinin A.A.

More about the authors

Journal: Burdenko's Journal of Neurosurgery. 2024;88(2): 47‑53

DOI: 10.17116/neiro20248802147

Read: 1586 times

To cite this article:

Byvaltsev VA, Kalinin AA. Minimally invasive removal of dumbbell shaped schwannomas with transforaminal lumbar fusion: a retrospective study with a minimum 3-year follow-up. Burdenko's Journal of Neurosurgery. 2024;88(2):47‑53. (In Russ., In Engl.)
https://doi.org/10.17116/neiro20248802147

Подписка 2025 Журнал «Вопросы нейрохирургии» имени Н.Н. Бурденко (Burdenko's Journal of Neurosurgery)

Использование инфографики авторами научных работ

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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.

CONCLUSION

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.

Keywords:

dumbbell-shaped tumors

schwannomas

minimally invasive technique

one step surgery

facetectomy

transforaminal interbody fusion

transpedicular fixation

Authors:

Byvaltsev V.A.

Irkutsk State Medical University;
Russian Railways-Medicine Clinical Hospital;
Irkutsk State Medical Academy of Postgraduate Education

ORCID: 0000-0003-4349-7101

Kalinin A.A.

Irkutsk State Medical University;
Russian Railways-Medicine Clinical Hospital

ORCID: 0000-0002-6059-4344

Received:

04.12.2023

Accepted:

12.01.2024

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