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Year : 2021  |  Volume : 9  |  Issue : 2  |  Page : 79-84

A prospective study analyzing the clinical outcome of degenerative lumbar canal stenosis treated by laminectomy

1 Department of Orthopaedics, Adichunchanagiri Institute of Medical Sciences, BG Nagar, Mandya District, Karnataka, India
2 Department of Orthopaedics, SDM College of Medical Sciences and Hospital, SDM University, Dharwad, Karnataka, India
3 Department of Orthopaedics, SDM Hospital, Ujire, Karnataka, India
4 Department of Orthopaedics, Civil Hospital, Dharwad, Karnataka, India

Correspondence Address:
Dr. Ravi M Daddimani
Department of Orthopaedics, Adichunchanagiri Institute of Medical Sciences, BG Nagar 571448, Nagamangala Taluk, Mandya District, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JOASP.JOASP_56_21

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BACKGROUND: Degenerative lumbar canal stenosis is a common disease occurring and one of the common indications for spine surgery in elderly. There are many objective measures such as neurological deficits, Japanese Orthopaedic Association score, and radiological evaluation to analyze the clinical outcome. Spinal surgeries are performed to improve the quality of life and to prevent long-term disabilities; hence self-assessing subjective measures are required to accurately assess the clinical outcome. Self-assessed subjective methods for assessing the quality of life are Oswestry disability index (ODI), self-paced walk test (SPWT), and visual analogue score (VAS). AIM OF THE STUDY: The aim of the study was to assess the clinical outcome using self-assessed subjective methods, namely, self-ODI score, SPWT score, and VAS for the back and leg. SETTING AND STUDY DESIGN: We performed a prospective study of a surgical outcome of lumbar canal stenosis using subjective methods. MATERIALS AND METHODS: Fifty patients diagnosed clinically with degenerative lumbar canal stenosis having ODI score of more than 40 and failed conservative surgery were evaluated with the magnetic resonance imaging of spine before undergoing surgical decompression. Preoperative self-assessed subjective measures ODI score, SPWT score, and VAS were compared with 12 months’ postoperative scores. STATISTICAL ANALYSIS USED: Statistical methods used for the analysis were dependent t test, Wilcoxon matched paired test, and Spearman’s rank correlation method. RESULTS: The mean preoperative ODI score was 57.3 and postoperative was 7.4. The mean SPWT distance was 124.9 meters preoperatively and 1482.0 meters postoperatively. CONCLUSION: We conclude that surgical decompression for degenerative lumbar stenosis gives good clinical results in terms of patient’s quality of life as suggested by improved postoperative ODI score, SPWT distance, and VAS compared with preoperative scores.

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