Flipped Reposition Laminoplasty for Excision of Intradural Extramedullary Tumors in the Thoracolumbar Spine: A Case Series of 14 Patients
- Author:
Ramesh KUMAR
1
;
Ijack DEBBARMA
;
Tankeshwar BORUAH
;
Atul SAREEN
;
Mohit Kumar PATRALEKH
;
Ashish DAGAR
;
Shaffaf Abdul KAREEM
Author Information
- Publication Type:Clinical Study
- From:Asian Spine Journal 2020;14(3):327-335
- CountryRepublic of Korea
- Language:English
-
Abstract:
Methods:Fourteen patients (nine females and five males) diagnosed with IDEM tumors of the thoracolumbar region operated between 2016 and 2018 were included in this study. Pathologically, five cases were schwannomas; four cases were meningiomas; two cases were ependymomas; and one case each was lymphoma, neurofibroma, and teratoma. All patients had their neurological deficits documented using the American Spinal Injury Association (ASIA) impairment scale. After completion of all preanesthetic formalities, the patients were operated upon by a single surgeon using the flipped reposition laminoplasty technique. Follow-up was done at 1, 3, 6, and 12 months post operation and yearly thereafter.
Results:The mean age of the patients was 35.28 years (14–65 years), and the mean follow-up duration was 17 months (6–26 months). Two patients were assessed with ASIA grade A neurology, one patient improved to ASIA grade B, whereas the other did not improve. Two patients improved from ASIA grade B to ASIA grade D, and seven patients with ASIA grades C and D improved to ASIA grade E. Fusion at the osteotomy site was seen in 92.85% (13 out of 14) cases on one side within 6 months post operation. Fusion was seen in all the cases within 1 year post operation.
Conclusions:Flipped reposition laminoplasty is an excellent technique providing adequate exposure and additional stability postoperatively.
