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Instrumented Minimally Invasive spinal-Transforaminal Lumbar Interbody Fusion (MIS-TLIF); Minimum 5-years Follow-up With Clinical and Radiologic Outcomes.

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Instrumented Minimally Invasive spinal-Transforaminal Lumbar Interbody Fusion (MIS-TLIF); Minimum 5-years Follow-up With Clinical and Radiologic Outcomes.

J Spinal Disord Tech. 2012 Sep 28;

Authors: Kim JS, Jung B, Lee SH

Abstract
STUDY DESIGN:: A retrospective study. OBJECTIVE:: To determine the clinical and radiological outcomes of the long-term results of instrumented MIS-TLIF in unstable, single level, low-grade, isthmic spondylolisthesis (IS) or degenerative spondylosis (DS) including degenerative spondylolisthesis, foraminal stenosis with central stenosis, degenerative disc disease, and recurrent disc herniation. SUMMARY OF BACKGROUND DATA:: MIS-TLIF is a common surgical procedure to treat lumbar spondylolisthesis. However, there are no studies that have documented the long-term results of MIS-TLIF. METHODS:: Forty-four patients who had undergone instrumented MIS-TLIF between July 2003 and January 2005, were retrospectively reviewed. The Visual Analogue Scale (VAS), Oswestry Disability Index (ODI), patient satisfaction rate (PSR), and the patient’s return-to-work status were used to assess clinical and functional outcomes. Radiological follow-up were carried out in patients to check for adjacent segmental degeneration (ASD). The plain radiographs, CT and MRI were used in all patients in last follow-up period. RESULTS:: The mean VAS scores for back and leg pain decreased from 5.8 and 7 to 3.5 and 3.7 respectively in the DS group (n=19) and from 6.8 and 6.9 to 1.8 and 2.0 respectively in the IS group (n=25) (P<0.001). The mean ODI scores improved from 61.7% to 21.5% in the DS group and from 53.9% to 16% in the IS group (P<0.001). PSR was 80% and 81% in the DS and IS groups, respectively. Evidence of fusion was observed radiologically in 24 (96%) and 19 (100%) of the patients in the IS and the DS group respectively, giving an overall fusion rate of 97.7% (43/44). The final ASD rate, observed using radiography, was 68.4% (13/19) in the DS, and 40% (10/25) in the IS group. However, 15.8% (3/19) in the DS and 4% (1/25) in the IS group had symptoms associated with ASD. CONCLUSIONS:: The long-term clinical and radiologic outcomes after instrumented MIS-TLIF in patients with unstable single-level spine are favorable.

PMID: 23027364 [PubMed – as supplied by publisher]

Instrumented Minimally Invasive spinal-Transforaminal Lumbar Interbody Fusion (MIS-TLIF); Minimum 5-years Follow-up With Clinical and Radiologic Outcomes | List of elbow injuries

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