Incidence and the factors of postoperative residual numbness in lumbar canal stenosis
- VernacularTitle:腰椎管狭窄症术后下肢残留麻木的发生率及影响因素
- Author:
Zhiming CUI
;
Guofeng BAO
;
Weihua CAI
- Publication Type:Journal Article
- Keywords:
lumbar canal stenosis;
operative therapy;
curative effect;
numbness
- From:
Orthopedic Journal of China
2006;0(21):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To evaluate the incidence of postoperative residual numbness and the factors that influenced numbness in lumbar canal stenosis(LCS).[Method]Eighty patients with LCS including 24 males and 32 females,who were 27～78 years of age with an average age of 61.3,were operated by posterior decompression,and followed 10 days,1 month,3 months,1 year and 2 years after operation.All patients were examined by neurological findings and residual symptoms.[Result]In LCS,there were 82.1% of patients who complained numbness preoperativety.The incidence of residual numbness was 43.6%,39.1%,36.6%,35.3% and 35.7% after 10 days,1 month,3 months,12 months and 24 months,respectively.The factors that influenced residual numbness were related to stenosis types;JOA score before operation and the type of spinal canal stenosis were independent of age and nerve root diameter.[Conclusion]The lower limbs numbness recovered within 1 month postoperatlvely.The incidence of postoperative residual numbness was 35.3% and 35.7% in LCS after 1 year and 2 years.It is speculated that the potential of recovery of neural tissue is important for lower limbs residual numbness.
