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Table 1 Evaluation schedule

From: Comparative study of the efficacy and safety of minimally invasive interlaminar full-endoscopic discectomy versus conventional microscopic discectomy in single-level lumbar herniated intervertebral disc (ENDO-F Trial): a multicenter, prospective, randomized controlled trial protocol

Visit type

Screening

Surgical intervention

Follow-up

Visit

1

2

3

4

5

6

Visit week

4–0 weeks

0–2 days

2 weeks

12 weeks

24 weeks

52 weeks

 ± 5 days

 ± 4 weeks

 ± 8 weeks

 ± 8 weeks

Informed consent

â– 

     

Demographics*

â– 

     

Inclusion/Exclusion

â– 

     

Randomization

 

â– 

    

Surgery

 

â– 

    

MRI (or CT)†

â– 

â– 

    

Simple radiographs

â– 

 

â– 

â– 

â– 

â– 

ODI

â– 

 

â– 

â– 

â– 

â– 

EQ-5D-5L

â– 

 

â– 

â– 

â– 

â– 

VAS

â– 

 

â– 

â– 

â– 

â– 

POSAS

   

â– 

â– 

â– 

Other survey‡

  

â– 

â– 

â– 

â– 

Adverse events

 

â– 

â– 

â– 

â– 

â– 

  1. POSAS, Patient and Observer Scar Assessment Scale
  2. *Baseline patient characteristics, including age, gender, occupation, comorbidity (diabetes mellitus, hypertension), bone mineral density, body mass index, medical/surgical history, smoking/drinking habits, physical examination, and laboratory test
  3. †CT imaging used when MRI cannot be performed
  4. ‡Including surgery satisfaction, walking time/distance, and return to daily activities after surgery