Increased incidence of pseudarthrosis after unilateral instrumented transforaminal lumbar interbody fusion in patients with lumbar spondylosis

摘要: Object Transforaminal lumbar interbody fusion (TLIF) with segmental pedicular instrumentation is a wellestablished procedure used to treat spondylosis or without spondylolisthesis. Available biomechanical and clinical studies that compared unilateral bilateral constructs have produced conflicting data regarding patient outcomes hardware complications. Methods A prospective cohort study was undertaken by group of neurosurgeons. They prospectively enrolled 80 patients into either pedicle screw groups (40 patients/group). Demographic collected for each included sex, age, body mass index, tobacco use, Workers' Compensation/litigation status. Operative segments operated on, number levels involved, estimated blood loss, length hospital stay, perioperative Long-term (hardware malfunction, wound dehiscence, pseudarthrosis) were recorded. For all patients, preoperative baseline 6-mon...