Skip to main content

Table 1 Patients’ characteristic with p-values for differences

From: Altered postural timing and abnormally low use of proprioception in lumbar spinal stenosis pre- and post- surgical decompression

  Patients
N = 11
Patients post-surgery
N = 9
Control subjects
N = 15
P
Age mean ± SD 69 ± 8   70 ± 6 0.89
Sex (m:f) N 7: 4   8: 12 0.71
Weight (kg) mean ± SD 84.3 ± 17.9   77.9 ± 14.1 0.08
Height (m) mean ± SD 1.71 ± 0.7   1.69 ± 1.0 0.22
BMI (kg/m2) mean ± SD 28.9 ± 5.3   27.2 ± 3.6 0.14
Location of LSS N
- L 2/3 and L 3/4 1    
- L 2/3, L 3/4 and L 4/5 2    
- L 3/4 3    
- L 3/4 and L 4/5 2    
- L 3/4, L 4/5 and L 5 / S 1 1    
- L 4/5 2    
Time between symptom onset and surgery (years) mean ± SD 2.5 ± 1.6    
Time between diagnosis and surgery (months) mean ± SD 6.1 ± 3.9    
Symptoms N     
- Claudicatio spinalis 11    
- Reduced walking distance 11    
- Subjective leg muscle weakness 11    
- Inflected trunk position during walking 11    
- Pain reduction induced by trunk flection and sitting position 11    
Surgery N     
- Minimally invasive osteoligamentous decompression 7    
- Partially hemilaminectomy with additional osseous decompression 4    
Days between pre- and post-assessment mean ± SD   59 ± 13   
Physiotherapy between surgery and post-assessment N   9   
  1. P p-value, SD standard deviation, BMI body mass index, LSS lumbar spinal stenosis