Threaded Fusion Cage And Its Use In Treatment Of Lumba Spinal Segmental Instability

Objective: To assess the complications and outcomesof patients with threaded fusion TFCs implanted into their lumbar vertebrals.Method: Nineteen patients (mean age, 48.2 years; range29-62 years) were treated with posterior lumbar interbody fusion using threaded fusion TFCs. All patients were implanted two TFCs in one segment. Preoperative CT scanning and plain radiography was used to measure endplate dimensions and template the appropriately sized interbody fusion TFCs.Result: No TFC failure or extrusion was observed. No neurologic deficits occurred. One cerebral spinal fluid leaked. The operative results were rated as excellent, good, fair, or poor. The overall fusion rate was 89.5%. The good or excellent rate was 94.7%.Conclusion: This study demonstrates that the threaded fusion cage offers a useful alternative to the more traditional posterior lumbar interbody fusion procedure. There were fewer complications with the threaded fusion cage technique. Although this study has investigated the acute effects of the TFC, long-term clinical outcomes studies are necessary to address issues concerning the clinical effectiveness of these procedures.