STUDY DESIGN: A prospective single-surgeon nonrandomized clinical study. OBJECTIVE: To evaluate the radiographic and clinical outcomes, by fixation type, in extreme lateral interbody fusion (XLIF) @entity1 and provide an algorithm for determining @entity1 suitable for stand-alone XLIF. SUMMARY OF BACKGROUND DATA: XLIF may be supplemented with pedicle screw fixation, however, since stabilizing structures remain intact, it is suggested that stand-alone XLIF can be used for certain indications. This eliminates the associated morbidity, though subsidence rates may be elevated, potentially minimizing the clinical benefits. MATERIALS AND METHODS: A fixation algorithm was developed after evaluation of @entity1 outcomes from the surgeon's first 30 cases. This algorithm was used prospectively for 40 subsequent @entity1 to determine the requirement for supplemental fixation. Preoperative, postoperative, and 12-month follow-up computed tomography scans were measured for segmental and @entity1515 and posterior disk height. Clinical outcome measures included back and leg @entity158 (visual analogue scale), @entity717 Index (ODI), and SF-36 physical and mental component scores ( @entity8847 and @entity8848 ). RESULTS: Preoperatively to 12-month follow-up there were increases in segmental @entity1515 (7.9-9.4 degrees, P=0.0497), lumbar @entity1515 (48.8-55.2 degrees, P=0.0328), and disk height (3.7-5.5 mm, P=0.0018); there were also improvements in back (58.6%) and leg @entity158 (60.0%), ODI (44.4%), @entity8847 (56.7%), and @entity8848 (16.1%) for stand-alone XLIF. For instrumented XLIF, segmental @entity1515 (7.6-10.5 degrees, P=0.0120) and disk height (3.5-5.6 mm, P<0.001) increased, while lumbar @entity1515 decreased (51.1-45.8 degrees, P=0.2560). Back (49.8%) and leg @entity158 (30.8%), ODI (32.3%), @entity8847 (37.4%), and @entity8848 (2.0%) were all improved. Subsidence occurred in 3 (7.5%) stand-alone @entity1 . CONCLUSIONS: The XLIF treatment fixation algorithm provided a clinical pathway to select suitable @entity1 for stand-alone XLIF. These @entity1 achieved positive clinical outcomes, satisfactory fusion rates, with sustained correction of @entity1515 and restoration of disk height.

Maintenance of Segmental XXXX and Disk Height in Stand-alone and Instrumented Extreme Lateral Interbody Fusion (XLIF).

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity8848 :: ('MESH:C537472', 'Disease') :: ['MCS'] @entity1515 :: ('MESH:D008141', 'Disease') :: ['lordosis', 'global lumbar lordosis'] @entity8847 :: ('OMIM:176430', 'Disease') :: ['PCS'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity717 :: ('MESH:D009069', 'Disease') :: ['Oswestry Disability']
@entity1515 :: (MESH:D008141,Disease) :: ['Lordosis']
