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Table 2 Patient characteristics and outcomes

From: Endoscopic decompression for intraforaminal and extraforaminal nerve root compression

  Age, Sex Level Kemp Sign SLRT FNST Sensory Disturb Muscle Weakness disc protrusion CT discogram Preop conservative treatment disc protrusion op-finding Preop JOA score Postop JOA score Recovery Rate (%) different outcomes
1 88, F L5-S1 + - - L5 - + 3 M + 3 11 30.8 Contralateral side*
2 69, F L3-L4 + + + L4 IP, QF, EHL + 5 M + 7 14 31.8 Contralateral side
3 70, F L5-S1 + - - L5 - - 2 M - 12 12 0 no pain relief
4 80, F L5-S1 + - - L5 EHL - 2 M - 12 19 41.2 Ipsilateral side†
5 70, F L5-S1 + + - L5 EHL + 5 M + 11 20 50  
6 56, M L4-L5 + + + L4 - + 14 M + 15 29 100  
7 76, F L3-L4 - - + - - + 6 M + 14 28 93.3 Ipsilateral side
8 75, F L5-S1 + - - L5 EHL + 8 M + 5 20 62.5  
9 67, M L5-S1 + + - L5 EHL + 9 M + 8 29 100  
10 60, M L5-S1 + + - L5 EHL NA 4 M + 11 27 88.9  
11 68, M L5-S1 - - - L5 - + 5 M + 11 21 55.6  
12 40, F L5-S1 - + - L5, S1 - + 2 M + 14 19 33.3  
13 78, M L5-S1 + - - L5 EHL + 6 M + 11 16 27.8  
14 66, M L5-S1 - + - L5 EHL - 4 M - 20 28 88.9 Ipsilateral side
15 63, F L3-L4 + + - L3 - NA 7 M + 13 20 43.8  
16 66, M L3-L4 + - + L3 IP, QF + 4 M + 13 20 43.8  
17 62, F L4-L5 + - + - EHL NA 18 M + 4 11 28  
            10.8 ± 4.3 20.2 ± 6.2 54.1 ± 30.0  
  1. * contralateral side = later recurrence of the same symptom on the contralateral side of the surgery
  2. † ipsilateral side = later appearance of symptoms on the contralateral side of the surgery