The efficacy of coblation nucleoplasty for protrusion of lumbar intervertebral disc at a two-year follow-up.
OBJECTIVE
The purpose of this study was to evaluate longer-term efficacy over a two-year follow-up of coblation nucleoplasty treatment for protruded lumbar intervertebral disc.


METHODS
Forty-two cases of protruded lumbar intervertebral disc treated by coblation nucleoplasty followed-up for two years were analysed. Relief of low back pain, leg pain and numbness after the operation were assessed by visual analogue pain scale (VAS). Function of lower limb and daily living of patients were evaluated by the Oswestry Disability Index (ODI).


RESULTS
Operations were performed successfully in all cases. Three patients had recurrence within a week of the procedure. Evaluation of the 42 patients demonstrated significant improvement rate of VAS: defined as 66.2% in back pain, 68.1% in leg pain, and 85.7% in numbness at one-week after the operation; 53.2%, 58.4%, 81.0% at one-year; and 45.5%, 50.7%, 75.0% at two-year follow-up. One week after the operation, obvious amelioration occurred in all the patients, but the tendency decreased. Before operation, the mean value of ODI was 68.2 ± 10.9%. The value at one week was 28.6 ± 8.2%; one-year at 35.8 ± 6.5%; and two-years at 39.4 ± 5.8%.


CONCLUSIONS
Coblation nucleoplasty may have satisfactory clinical outcomes for treatment of protruded lumbar intervertebral disc for as long as two-year follow-up, but longer-term benefit still needs verification.
Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, 215004, People's Republic of China.
Hui
H
Zhu
Xiao-Zhong
XZ
Zhou
Mao-Hua
MH
Cheng
Yi-Xin
YX
Shen
Qi-Rong
QR
Dong
D000328:Adult; D017115:Catheter Ablation / Q000379:methods*; D019299:Decompression, Surgical / Q000379:methods*; D004185:Disability Evaluation; D017587:Diskectomy, Percutaneous / Q000379:methods*; D005260:Female; D006801:Humans; D006987:Hypesthesia / Q000209:etiology / Q000503:physiopathology / Q000601:surgery; D007405:Intervertebral Disc Displacement / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D017116:Low Back Pain / Q000209:etiology / Q000503:physiopathology / Q000601:surgery; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D010147:Pain Measurement; D012189:Retrospective Studies; D012585:Sciatica / Q000209:etiology / Q000503:physiopathology / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult
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