Increased incidence of cage migration and nonunion in instrumented transforaminal lumbar interbody fusion with bioabsorbable cages

摘要: Object Recent advances in the field of spinal implants have led to development bioabsorbable interbody cage. Although much has been written about their advantageous characteristics, little reported regarding complications associated with these cages. The authors conducted this prospective cohort study compare fusion and complication rates patients undergoing transforaminal lumbar (TLIF) carbon fiber cages versus biodegradable made from 70/30 poly(l-lactide-co-d,l-lactide) (PLDLA). Methods Between January 2005 May 2006, 81 various degenerative and/or structural pathologies affecting spine underwent single- or multilevel TLIF posterior segmental pedicle screw fixation using (37 patients) PLDLA (44 patients). Clinical radiological follow-up was performed at 6 weeks, 3 months, 1 year, is ongoing. incidence nonunion, breakage, cage migration were ...