@article{ref1,
title="Preoperative low muscle mass is a predictor of falls within 12 months of surgery in  patients with lumbar spinal stenosis",
journal="BMC geriatrics",
year="2020",
author="Wada, Takashi and Tanishima, Shinji and Kitsuda, Yuki and Osaki, Mari and Nagashima, Hideki and Hagino, Hiroshi",
volume="20",
number="1",
pages="e516-e516",
abstract="BACKGROUND: Patients with lumbar spinal stenosis (LSS) may be at high risk of falls  due to various factors. No effective fall risk assessments or fall prevention  measures have been performed for patients with LSS because only a few studies have  evaluated falls in these patients. This study aimed to evaluate the incidence and  preoperative predictors of falls within 12 months of surgery in patients with LSS. <br><br>METHODS: In this prospective study of 82 consecutive preoperative patients with LSS,  preoperative demographic data, previous fall history, leg pain, low back pain,  Japanese Orthopaedic Association (JOA) score, Hospital Anxiety and Depression Scale  (HADS) scores, lower extremity muscle strength, walking speed, grip strength, and  muscle mass were assessed at baseline. Falls were assessed at 3, 6, 9, and 12 months  after surgery. Participants were categorized as fallers and non-fallers and baseline  variables were compared. Binomial logistic regression was used to identify  predictors of falls within 12 months of surgery. <br><br>RESULTS: Seventy-four patients  (90.2%) completed the 12-month follow-up after surgery, of whom 24 patients (32.4%)  experienced falls. A higher proportion of fallers were female and had a history of  falls compared to non-fallers. Fallers had a significantly lower JOA score and a  higher HADS-depression score compared to non-fallers. Fallers had significantly  lower tibialis anterior muscle strength, gait speed, grip strength, and skeletal  muscle mass index. Fallers had a higher prevalence of low muscle mass compared with  non-fallers. The presence of low muscle mass was significantly predictive of falls  within 12 months of surgery (odds ratio, 4.46; 95% confidence interval, 1.02-19.63). <br><br>CONCLUSIONS: Patients with LSS have a high incidence of falls after surgery and  preoperative low muscle mass may be a predictor of postoperative falls.<p /> <p>Language: en</p>",
language="en",
issn="1471-2318",
doi="10.1186/s12877-020-01915-y",
url="http://dx.doi.org/10.1186/s12877-020-01915-y"
}