Unilateral Biportal Endoscopy Versus Tubular Microendoscopy in Management of Single Level Degenerative Lumbar Canal Stenosis: A Prospective Study.

Abstract:

STUDY DESIGN:Prospective clinical study. SUMMARY OF BACKGROUND DATA:To the authors knowledge, there are no previous prospective studies to test the feasibility of the unilateral biportal endoscopic (UBE) technique in management of lumbar canal stenosis. PURPOSE:The study was conducted to compare clinical results of the UBE technique with the tubular microendoscopic (TME) surgery for management of degenerative lumbar canal stenosis. METHODS:One hundred fifty-four cases of single level degenerative lumbar canal stenosis were randomly divided into 2 groups. Each group consisted of 77 cases: one group underwent UBE and the other TME. Clinical outcome was assessed periodically: early postoperative, at 1, 3, and every 6 months for 2 years. Clinical outcome assessment operatives included the Oswestry Disability Index (ODI), Zurich Claudication Questionnaire (ZCQ), and patient satisfaction using Modified Macnab Criteria (MMC). In addition, the admission period, operative time, and estimated blood loss were compared. RESULTS:In UBE cases, ODI and ZCQ were statistically superior to TME for all periods (P<0.05). For both approaches, values presented progressive improvement until the 24th month. Regarding ODI, UBE and TME had an 84% and 79% success rate, respectively. In ZCQ, UBE and TME had a 79% and 73% success rate, respectively, at the end of the 24th month. Regarding the MMC, UBE and TME had 63% and 29% excellent results, respectively. UBE also has shorter admission period (days: 1.11 vs. 1.28), operative time (minutes: 57.74 vs. 65.31), and less estimated blood loss (mL: 49.47 vs. 53.57). CONCLUSIONS:Given its demanding learning curve, UBE is considered an effective alternative to TME with a higher clinical success rate.

journal_name

Clin Spine Surg

journal_title

Clinical spine surgery

authors

Aygun H,Abdulshafi K

doi

10.1097/BSD.0000000000001122

subject

Has Abstract

pub_date

2021-01-15 00:00:00

eissn

2380-0186

issn

2380-0194

pii

01933606-900000000-99066

pub_type

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