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General Orthopaedics

COMPARATIVE EVALUATION OF POSTERO-LATERAL INSTRUMENTED LUMBAR FUSION AND TRANSFORAMINAL LUMBAR INTERBODY FUSION IN ADULT LOW GRADE SPONDYLOLISTHESIS

The Indian Orthopaedic Society (UK) (IOSUK)



Abstract

Study design

Prospective randomized study.

Objective

Primary aim of this study was to compare clinical and radiological results of transforaminal lumbar interbody fusion (TLIF) with posterolateral (interlaminar) instrumented lumbar fusion (PLF) in adult low grade (Meyerding 1 & 2) spondylolisthesis patients.

Background data

Theoretically, TLIF has better radiological result than PLF in spondylolisthesis in most of the studies.

Method

24 patients of low grade adult spondylolisthesis were randomly allocated to one of the two groups: group 1- PLF and group 2-TLIF. Study period was between August 2010 to March 2013. All patients were operated by a single surgeon (CN). Posterior decompression was performed in all patients. Average follow up period was 18.4 months. Quality of life was accessed with Visual analogue scale and Oswestry Low Back Pain Disability Index. Fusion was assessed radiologically by CT scan and X-ray.

Result

Though fusion was significantly better in TLIF group, clinical outcome including relief of back pain and neurogenic claudication were better in PLF group. Rate of complication was also lower in PLF group.

Conclusion

Considering the low complication rate and similar or better clinical results, posterolateral instrumented lumbar fusion is the better option in low grade adult spondylolisthesis.