Osteoporos Sarcopenia.  2018 Mar;4(1):33-36. 10.1016/j.afos.2018.02.003.

The impact of sarcopenia on the results of lumbar spinal surgery

Affiliations
  • 1Department of Orthopaedics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. inose.orth@tmd.ac.jp
  • 2Department of Geriatric Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.

Abstract


OBJECTIVES
As the population ages, the number of lumbar spinal surgeries performed on sarcopenic patients will increase. The purpose of this study was to investigate the prevalence of sarcopenia and evaluated its impact on the results of lumbar spinal surgery.
METHODS
This study included 2 groups: One group consisted of patients who underwent whole-body dual-energy X-ray absorptiometry (DXA) scanning before the option of undergoing surgery for lumbar spinal disease (LSD group) and a second group consisted of patients underwent DXA scanning for osteoporosis screening under hospital watch at the geriatric medicine department (control group). In order to evaluate the impact of sarcopenia on the clinical outcome of lumbar spinal surgery, the Japanese Orthopedic Association (JOA) score, the recovery rate based on the JOA score, and visual analogue scale (VAS) scores for lower back pain, lower extremity pain, and lower extremity numbness were compared within the LSD group.
RESULTS
The prevalence of sarcopenia showed no statistical difference between groups (control group, 50.7%; LSD group, 46.5%). In the LSD group, while the changes in VAS scores showed no statistical difference between the nonsarcopenia subgroup and sarcopenia subgroup, the sarcopenia subgroup demonstrated inferior JOA scores and recovery rates at the final follow-up when compared with the nonsarcopenia subgroup (P < 0.05).
CONCLUSIONS
This study demonstrated a high prevalence of sarcopenia among the elderly populations in Japan and a negative impact of sarcopenia on clinical outcomes after lumbar spinal surgery.

Keyword

Lumbar canal stenosis; Sarcopenia
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