Call for an appointment

(877) 784-3667

318 tlif patients outcomes poster section meeting

Mick J. Perez-Cruet M.D., M.S.
Namath Syed Hussain M.D.
Evan Begun B.S.
Joseph John Joshua MSE 

Oakland University William Beaumont School of Medicine
Based on Long-Term Analysis of 318 Consecutive Patients

Long-term prospective outcomes in patients undergoing minimally-invasive spinal fusion for debilitating back pain have not been well studied.


Methods. 318 patients (mean age 63 years, range 19-94) who underwent MITLIF were followed over 7 years. Patients presented with spondylolisthesis (n = 236, 74%), and degenerative disc disease (n = 82, 26%). Health care quality of life measures studied were Visual Analog Scale (VAS), Oswestry Disability Index (ODI), and Short Form-36 (SF36) for 7 years. Other outcomes analyzed included pre- operative co-morbidities, age, bone quality, and complications.

Results. 196 females and 122 males were treated. Levels fused included L1-2 (n = 3, 1%), L2-3 (n = 19, 6%), L3-4 (n =34, 11%), L4-5 (n = 163,51%), L5-S1 (n = 89, 28%),or multi-level instrumentation(n = 10, 3%). Estimated blood loss and hospital stay were 128.4 mL and 4.37 days. VAS scores declined from 7.02 preoperatively to 4.3 (p <.01)at one year follow-up. ODI scores declined from 44.1 preoperatively to 28.1 (p <.01) at one year. SF-36 physical component scores(PCS) increased from 30.3 preoperatively to 39.6 (p <.01) at one year. SF-36 mental component scores(MCS) increased from 43.7 preoperatively to 48.5 (p <.01) at one year. Re-operation rate for adjacent level disease was less then 2% over the 7 year period. Approximately 25% of patients comprising mostly elderly, caucasian women had moderate to severe osteoporosis. No device failures were seen in this group of patients. Approximately 60% of patients had at least two of the co-morbidities: high blood pressure, cardiac disease,obesity, diabetes, h/o stroke.

Conclusions. This study presents a large long-term prospective outcomes analysis of MITLIF revealing statistically significant outcome improvements out to seven years. MITLIF resulted in a high rate of spinal fusion and very low rate of adjacent segment disease requiring re-operation. These results highlight the importance of focused surgery and attention to proper indications when selecting patients.


Click to view the full article on Health-related quality of life outcomes with minimally invasive transforaminal lumbar interbody fusion

EXPERTISE makes the difference

Current patients can now request to schedule or change an appointment through the patient portal and request prescription refills.