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Purpose <p>To clarify the relationship between early postoperative recovery of mobility and preoperative impairment of the joint position sense in the big toe in patients with lumbar spinal stenosis (LSS).</p> Methods <p>The subjects were 247 patients who underwent surgery for LSS. The main outcome was recovery of early postoperative mobility defined as the availability of walking independence after surgery (Barthel index = 15) and the number of days from surgery to starting to walk independently. Preoperative physical functions such as the joint position sense, surgical information and clinical characteristics were measured and analyzed. The relationship between early postoperative recovery of mobility and preoperative impairment of the joint position sense in the big toe was examined using log-rank tests and Cox proportional hazards models.</p> Results <p>Impairment of the position sense was observed in 51 patients. Patients with impairment of the position sense had a lower rate of early recovery of mobilization compared with non-impaired patients (63% vs. 89%, <i>p</i> &lt; 0.01). According to the Kaplan-Meier curves, patients with impairment of the position sense had a significant delay in mobilization compared with those who were not impaired (<i>p</i> &lt; 0.01). The hazard ratio for delayed recovery of mobility was 0.54 (95% confidence interval 0.36–0.79).</p> Conclusion <p>Preoperative impairment of the joint position sense in the big toe was a risk factor for prolonged recovery of mobility in the early postoperative period in patients after LSS surgery.</p>

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Preoperative impairment of the joint position sense in the big toe is a risk factor for delayed recovery of mobility after lumbar spinal stenosis surgery

  • 期刊论文

  • 发表日期：

    2025年11月20日

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  • Takuya Maeda,
  • Yuta Nanri,
  • Kohei Nozaki,
  • Hiroyoshi Masuma,
  • Manami Nihei,
  • Takako Uchiya,
  • Masashi Kawabata,
  • Gen Inoue,
  • Toshiyuki Nakazawa,
  • Takayuki Imura,
  • Masayuki Miyagi,
  • Yusuke Mimura,
  • Yoshihide Tanaka,
  • Yuji Yokozeki,
  • Masashi Takaso

摘要

Purpose

To clarify the relationship between early postoperative recovery of mobility and preoperative impairment of the joint position sense in the big toe in patients with lumbar spinal stenosis (LSS).

Methods

The subjects were 247 patients who underwent surgery for LSS. The main outcome was recovery of early postoperative mobility defined as the availability of walking independence after surgery (Barthel index = 15) and the number of days from surgery to starting to walk independently. Preoperative physical functions such as the joint position sense, surgical information and clinical characteristics were measured and analyzed. The relationship between early postoperative recovery of mobility and preoperative impairment of the joint position sense in the big toe was examined using log-rank tests and Cox proportional hazards models.

Results

Impairment of the position sense was observed in 51 patients. Patients with impairment of the position sense had a lower rate of early recovery of mobilization compared with non-impaired patients (63% vs. 89%, p < 0.01). According to the Kaplan-Meier curves, patients with impairment of the position sense had a significant delay in mobilization compared with those who were not impaired (p < 0.01). The hazard ratio for delayed recovery of mobility was 0.54 (95% confidence interval 0.36–0.79).

Conclusion

Preoperative impairment of the joint position sense in the big toe was a risk factor for prolonged recovery of mobility in the early postoperative period in patients after LSS surgery.