Skip to main content

Table 1 Demographic and other characteristics of the patients

From: The use of average Pavlov ratio to predict the risk of post operative upper limb palsy after posterior cervical decompression

  Patient without palsy (n = 56) Patient with Palsy (n = 18)
Sex (M/F) 36/20 12/6
Mean age at surgery (years) 60.63 61.61
Duration of symptom before operation (months) 12.42 15.06
Disease etiology (%)   
- CSM 40 (71.4) 12 (66.7)
- OPLL 11 (19.6) 5 (27.8)
- PID 5 (8.9) 1 (5.6)
Type of operation (%)   
- Laminoplasty 53 (94.6) 15 (83.3)
- Posterior decompression with internal fixation 3 (5.4) 3 (16.7)
Extent of decompression (%)   
- C2–C7 1 (1.8) 0 (0)
- C3–C7 25 (44.6) 9 (50)
- C3–C6 21 (37.5) 8 (44.4)
- C3–C5 4 (7.1) 0 (0)
- C4–C7 3 (5.4) 0 (0)
- C4–C6 2 (3.6) 1 (5.6)
Mean Preoperative JOA score 10.55 11.22
Mean Postoperative JOA score 13.66 14.22
Recovery rate (%) 52.37 48.34
  1. CSM = cervical spondylotic myelopathy; OPLL = ossification of the posterior longitudinal ligament; PID = Protrusion of cervical disc in developmental cervical stenosis
  2. *All statistically not significant