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Surgical treatment of high-grade spondylolisthesis
1Department of Orthopaedic Surgery, Washington University in St. Louis, One Barnes-Jewish Hospital Plaza, Suite 11300 West Pavilion, Campus Box 8233, St. Louis, MO 63110, USA. bridwellk@wudosis.wustl.edu
Abstract:
High-grade spondylolisthesis is defined as Meyerding grade 3, 4, or 5 with an increased L5-SI kyphosis/slip angle. Modern-day treatment of high-grade spondylolisthesis usually involves some reduction of the spondylolisthesis along with pedicle screw instrumentation and circumferential fusion at L5-S1, achieved entirely through a posterior approach or through separate anterior and posterior approaches. Complications include implant failure distally, nonunion, and footdrop.
