Could isthmic approach to far lateral disc hernias cause instability?

These results show that a significant loss of resistance especially during the lateral bending loading was occurred with increasing resection portion of isthmus. With the load applied during the lateral bending of the pars interarticularis, the vertebra resected by 50% percent fractured significantly easier in comparison to the vertebra resected by 25% percent. Pars interarticularis is an important structure with an important role in stability. It is presumed that the more defect is created during the drill-up of the pars interarticularis, the more instability will be occurred.

Source: Clinical Biomechanics - April 19, 2020 Category: Orthopaedics Authors: Ramazan Sari, Fatma K übra Erbay Elibol, Eylem Burcu Kahraman Özlü, İlhan Elmacı, Teyfik Demir Source Type: research