Studies from 1995 to 2005.
| Study and author | Indication | Exclusion | Total, sex distribution, age , type where known, levels | Intra and extradiscal | Followup % nonresponsive | Results on GPE or Mcnab, excellent, poor, recurrence, complications, reoperative NK is “not known” | Year and reference |
|---|---|---|---|---|---|---|---|
| Yeung and Tsou | Prior disc surgery n = 31 radiculopthy neuro deficit | 1,8 | All herniations n = 307 m 102 f 205 age 18-72 Singles l2 to s1 | + yess RW | Mean 19 months 8.8% non responders | Macnab 84 poor 9.3% rec 0.7% complic1ations 3.9 Reoperation Rate 4.6 | 200247 |
| Wojcik | Radiculopathy | 1, ddd | N = 43 m25 f 18 | intra hijikata method | 18 months 16.3% nonresponders | GPE 64 good 36 satisfied 0 poor Complications NK Reop NK | 200448 |
| Tsou and Yeung | Radiculopathy neurodeficit | 1,4 | N219 m83 f 136 age 42[17-71] Central ldh single level L3S1 | + yess rw | 20 months [12-108] 11.9 non resp | Gpe 91 e + g poor 5.2 rec2.7 Complications 2.7 Reoperation Rate 4.6 | 20023 |
| Lew | Radiculopathy tension signs neuro deficit | 4 | N = 47 m 12 f 35 51 years[30-70] foraminal exforaminal L1-L5 + ped | Surgical dynamics system | 18 months [4-51] | GPE 85 e and g 11 poor return to work 89% Complications 0 Reoperation Rate 11 | 200149 |
| Hoogland | ? | ? | N = 246 nk nk | Extra Thessys system | 24 months | Gpe 86% exc + g 7.7 poor Complications 1.2 rec 3.5 [1 year] | 200350 |
| Eustacchio | Radiculopathy, tension signs neuro deficit | 3 | N = 122 m36 f 86 55 years [18-89] all ldh multilevel n = 4 L2-S1 10 exclu as stopped procedures but here we reviewed | intra | 35 months[15-35] | Gpe 45 exe 27 good 27 poor Prolo 71.9% exe + good retrun to work 94 rec 12 Complications 9 Reoperation Rate 27 | 200251 |
| Chiu | Virgin and prior disc surgery pain in back, radiculopathy, neuro deficit | 3 | N = 2000 m 990 f 1010 44 years [24-92] single multiple level type nk stenosis and ddd included | Intra and KARL STORZ eq TF MEAD | 42 months [6-72- | GPE 94 exc +g 3 poor Complications 1 Reoperation Rate nk | 200452 |
| Ahn | Prior disc surgery, tension signs, neuro deficit, radiculopathy | 2,5,9 | N = 43m11 f 32 46years[22-72 all rec after 6 months of microdiscectomy L3S1 | Intra and Peld | 24-39 months | VAS 8.7 to 2.6 diff 70 % GPE 28 exc 63 good 4.7 poor Complications 4.6 Reoperation Rate 2.3 | 200453 |
| Suess | Radiculopathy deficit | 3,8 | N = 25 m 11 f 14 48 years [26-72] foraminal +exF single level L2-L5 | PTFES sequestrectomy | 6 weeks | Pain leg vas 6.7 to 0.8 diff 88% pain back 5.1 to 1.3 diff 75% Complications 4 Reoperation Rate 8% | 200554 |
| Schubert and hoogland | Radiculopathy, tension signs, deficit, sequestration | 4 | N = 558 m 179 f 379 44 years [18-65 all ldh single level L2S1 | Intra and Thessys system | 12 months 8.7 non resp | Pain leg 8.4 to 1 diff 88% pain back 8.6 to 1.4 diff 84% GPE 51 exc 43 good 0.3 poor rec 3.6 Complications 0.7 rec 3.6 | 200555 |
| Ruetten | Radiculopathy deficit | 1,4,8 | N = 517m 277 f 240 38 years[16-78] all ldh multiple level n =46 L1-L5 | Intra and RW elted extreme lateral transf n = 27 bilateral | 12 months 10 non resp | Pain leg 7.1 to 0.8 diff 89% pain back 1.8 to 1.6 diff 13 % ODI 78 to 20 diff 74% rec 6.9 Complications 0 Reoperation Rate 6.9 | 200556 |
| Ramsbacher | Radiculopathy deficit | 1,7,8 | N = 39 m21 f 18 mean age 50 years all ldh single level L3S1 | Intra and Sofamor danek TES transf endo sequestrectomy | 6 weeks | Pain leg 6.7 to 0.8 diff 88% pain back5.1 to 1.3 diff 74% ps 77% very satisfied +satisfied Complications 5.1 Reoperation Rate 10% | 200057 |
| Knight | Prior surgery n = 75 back and leg pain radiculopathy Includes DDD and lateral stenosis | 3 | N = 250 48 years [21-86] all ldh single multiple level L2S1 | Intra and ELF KESS RW | 30 months [24-48] 3.2 non resp | Pain vas more than 50% improved 56% ODI 60% improved Complications 0.8 % Reoperation Rate 5.2 % | 1999 and 200115, 18 |
| Schenkenbach and Hoogland | Radiculopathy, tension signs, deficit | ? | N = 130 m43 f 87 39 years all ldh single level L2S1 | Intra and Thessys system etd | 12 months 5.1 non resp | pain leg diff 5.9 pain back diff 5.4 GPE 56exc 27 good 6 poor return to work 6 weeks 70% Complications 1.5 Reoperation Rate 4.6 % | 1998-99.28, 58 |
| Morgenstern | Radiculopathy deficit * study to compare normal vs intense PT postop revalidation | 1 | N = 144 m 48 f 96 all ldh multilevel n = 60 L1S1 | Intra and Yess ess endoscopic spine surgery | 24 months [3-48] | GPE m 83 exc +good 3% poor Complications 9% Reoperation Rate 5.6% | 2005 59 |