Observation on the Early Outcomes of Unilateral Laminotomy with Bilateral Decompression in Degenerative Lumbar Canal Stenosis under One-Hole Split Endoscope
Objective:To observe the clinical efficacy of unilateral laminotomy with bilateral decompression(ULBD)in the treatment of degenerative lumbar canal stenosis(DLCS)under one-hole split endoscope(OSE).Methods:70 patients with DLCS were included from June 2023 to February 2024.Of the 70 patients,42 were males,and 28 females.The average ages were(70.2±10.8)years old.50 cases received unilateral segmental decompression,and another 20 underwent bilateral segmental decompression(decompression was done in a total of 90 segments).The diseased segment included 10 cases at L3/4,50 cases at L4/5,and 30 cases at L5S1.All patients underwent ULBD under OSE.The related intraoperative indicators as well as complications were recorded,and comparison was made regarding the Oswestry disability index(ODI)and visu-al analogue scale(VAS)scores for waist and leg pain before operation,3 d after operation,and at final follow-up after surgery.Modified MacNab criteria were used to evaluate sat-isfaction with the surgery by the 6 months after operation.Results:The surgery was successfully completed in all patients.The operative time,and average days of follow-up were(94.6±21.2)min,and(9.3±3.5)months,respectively.Intraoperative tear of duralsac occurred in 1 case.One patient was complicated with muscle strength decrease after operation,and another 3 patients with residual lumbosacral pain.ODI scores and VAS scores for waist and leg were significantly decreased at 3 d after sur-gery and final follow-up after surgery compared to the indicators observed before operation(P＜0.05).The excellent and good rates were 92.86％for the operation.Conclusion:ULBD under OSE possesses less trauma,fast recovery and higher safety in the treatment of DLCS.In addition,the decompression is effective by this minimally invasive surgery.
one-hole split endoscopeunilateral laminotomy with bilateral decompressiondegenerative lumbar canal stenosis
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