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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