The outcome of microscopic selective decompression of degenerative lumbar spinal stenosis

الملخص EN

Objective : The aim of this study is to report our experience in treating degenerative lumbar canal stenosis with microscopic selective decompression.

Setting : Orthopedic department, Salmaniya Medical Complex.

Design : Retrospective study.

Method : A review of 48 patients who had microscopic selective decompression for degenerative lumbar spinal stenosis.

Thirty-one patients were evaluated for 2.5 years (1 to 4 years) after surgery.

The outcome was assessed using the Roland and Morris disability score and Zurich claudication score.

Instability was determined according to the criteria described by White and Panjabi.

Result : A significant decrease in low back pain disability and a significant increase in walking time and ambulation were seen.

An excellent to good outcome was noted in 24/31 (77.4%) patients.

No patient showed secondary radiological instability.

Conclusion : Microscopic selective decompression is a safe and effective procedure.

In the absence of pre-operative radiological instability, posterior instrumentation and fusion is not required.