Abstract
Background Context
Although a number of prognostic factors have been demonstrated to be associated with
surgical outcome of degenerative lumbar spinal stenosis (DLSS), no study has investigated
the relation between hand grip strength (HGS) and treatment outcome of DLSS.
Purpose
The purpose of the present study was to examine the influence of HGS on surgical outcomes
after surgery for patients with DLSS.
Study Design
This is an observational study.
Patient Sample
Patients who underwent spine surgery for DLSS were included in the study.
Outcome Measures
Oswestry Disability Index (ODI), EuroQOL (EQ-5D), and visual analog scale (VAS) scores
for back or leg pain were assessed.
Materials and Methods
A total of 172 consecutive patients who underwent spine surgery for DLSS were included
in the present study. Patients were assigned to either high HGS group (≥26 kg for
men and ≥18 kg for women, n=124) or low HGS group (<26 kg for men and <18 kg for women,
n=48) based on their preoperative HGS performance. Oswestry Disability Index, EQ-5D,
and VAS scores for back and leg pain were assessed and compared between two groups
preoperatively, 3 and 6 months after surgery. The primary outcome measure was baseline-adjusted
ODI scores 6 months after surgery. The secondary outcome measures, including the overall
ODI score, EQ-5D score, VAS score for back and leg pain, were assessed at each time
point during the 6-month follow-up period.
Results
As primary outcome, baseline-adjusted ODI scores were significantly lower in the high
HGS group than in the low HGS group 6 months after surgery. In the secondary outcome
measurements, the ODI, EQ-5D, and VAS scores for back and leg pain improved significantly
with time after surgery in both groups. The effects of HGS group on the overall changes
in the ODI and EQ-5D scores during the 6-month period were significantly different
between the two groups; however, they were not significantly different on VAS score
for back and leg pain. The pattern of change in the ODI during the follow-up period
was significantly different between the two groups.
Conclusions
Patients with preoperative high HGS display better surgical outcome in terms of disability
and health status 6 months after spine surgery. Preoperative HGS can act as a predictor
of surgical outcome in patients with DLSS.
Keywords
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Article info
Publication history
Published online: April 18, 2018
Accepted:
April 9,
2018
Received in revised form:
March 23,
2018
Received:
January 21,
2018
Footnotes
FDA device/drug status: Not applicable.
Author disclosures: FS: Nothing to disclose. HJK: Nothing to disclose. NKL: Nothing to disclose. HJC: Nothing to disclose. BSC: Nothing to disclose. CKL: Nothing to disclose. JSY: Nothing to disclose.
Identification
Copyright
© 2018 Elsevier Inc. All rights reserved.
