BioMed Research International / 2019 / Article / Tab 4

Research Article

Comparative Analysis between Three Different Lumbar Decompression Techniques (Microscopic, Tubular, and Endoscopic) in Lumbar Canal and Lateral Recess Stenosis: Preliminary Report

Table 4

Comparison of surgical outcome.

Endoscopic  
(N=164)
Tubular  
(N=34)
Microscopic  
(N=72)
p value

Avg EBL(ml)35.34±28.8772±23.21(44-350)134.3±35.340.087
Avg. surgery time   
(minutes/ level)
84.17±34.7066.12±15.9352.22±19.07≤0.001
Avg. hospital stay (days)2.12±1.682.83±1.994.85±1.86≤0.001
Serum CPK (IU/L)   
( POD#1 day – Preoperative)
66.38±63.61137.5±101.00120 ±116.890.030
Perioperative complication  
Rate (% of patients)
7.9%8.8%8.3%NS
Dura tear (4)   
Dysthesia (7)   
Motor weakness (1)
Disc recur(1)
Postop. Hematoma (1)   
Dysthsia(1)   
Disc Recur(1)
Postop. Hematoma(1)   
Dysthesia(4)   
Dura tear (1)

NS=not significant; Avg=average; EBL=estimated blood loss; CPK=creatine phosphokinase; POD=postoperative day; =statistically significant, †=only hemovac drainage.