Curve Laterality for Lateral Lumbar Interbody Fusion in Adult Scoliosis Surgery: The Concave Versus Convex Controversy.

Background: Minimally invasive lateral lumbar interbody fusion (LLIF) is an effective adjunct in adult degenerative scoliosis (ADS) surgery. LLIF approaches performed from the concavity or convexity have inherent approach-related risks and benefits.

Objective: To analyze LLIF approach-related complications and radiographic and clinical outcomes in patients with ADS.

Clinical and radiographic parameters associated with best versus worst clinical outcomes in minimally invasive spinal deformity surgery.

OBJECTIVE Minimally invasive surgery (MIS) techniques are increasingly used to treat adult spinal deformity. However, standard minimally invasive spinal deformity techniques have a more limited ability to restore sagittal balance and match the pelvic incidence-lumbar lordosis (PI-LL) than traditional open surgery. This study sought to compare "best" versus "worst" outcomes of MIS to identify variables that may predispose patients to postoperative success.

Biomechanical comparison of lumbosacral fixation techniques in a calf spine model.

Study Design: biomechanical testing of the strength and stability of lumbosacral fixation constructs.

Objectives: The purpose of this study was to quantify and compare the biomechanical properties of five different lumbosacral fixation constructs and determine the benefit of adding supplementary fixation to S1 screws.

Summary Of Background Data: Extension of long fusions to the sacrum remains a difficult clinical challenge.