General information	Instructions		Data extracted
First author
Sponsorship trial	Copy any sponsorship mentioned in the article (usually bottom left, first page)
Methods
Study design	RCT, quasi‐RCT, non‐randomised CCT
Method of randomisation	Tables, coin, etc
Allocation concealment	Closed envelopes, etc
Blindedness
Population
Place	Hospital/City/Country
Enrolment dates	Helps in finding out double‐reported populations
Inclusion criteria
Exclusion criteria
Age	Describe the age of the included population
Sex	Describe the sex distribution of the included population
Ethnicity
Work status
Duration of symptoms
Previous treatments
Total number of patients recruited
Number of patients who met inclusion criteria
Total number of patients randomised
Total number of patients followed
Interventions:
Group 1 PCL (yes/no) Brand implant (manufacterer) Patella (yes/no) Bearing (mobile/fixed/rotating) Flexion space (how determined)	You may copy the description of the intervention here, or simply indicate on which page and in which paragraph it can be found		PCL: Brand: Patella: Flexion space:
Group 2	Idem		PCL: CR Brand: Patella: Flexion space:
Group 3	Idem		PCL: Brand: Patella: Flexion space:
Outcomes
Who carried out the measurement?
What were the follow‐up moments?	Preop	6 Months		12 Months	24 Months	___Months
What was measured at each follow‐up and with which tool? ROM KSS functional KSS clinical VAS WOMAC KOOS OKS HSS IKDC Active flexion Passive flexion Revision Mortality SF‐36 Gait analysis Good Samaritan Knee Assessment Questionnaire
Analysis:
Statistical technique used:	Which tests? Alpha? Power? Sample size calculation? Software used?		Power: Sample size: Software:
Does technique adjust for confounding?
Number (or %) followed‐up from each group:
Results:
Quantitative results	If no between‐group comparisons are given, then report here the general results
Qualitative results
Adverse effects or complications
1. Comparison: (A) .................. (N=) vs (B) .................... (N= ) Outcome: Follow‐up: preop (A): 0 (0) (B): 0 (0) 6 months (A): 0 (0) (B): 0 (0) 12 months (A): 0 (0) (B): 0 (0) 24 months (A): 0 (0) (B): 0 (0) X months (A): 0 (0) (B): 0 (0) 2. Comparison: (A) .................. (N=) vs (B) .................... (N= ) Outcome: Follow‐up: preop (A): 0 (0) (B): 0 (0) 6 months (A): 0 (0) (B): 0 (0) 12 months (A): 0 (0) (B): 0 (0) 24 months (A): 0 (0) (B): 0 (0) X months (A): 0 (0) (B): 0 (0) 3. Comparison: (A) .................. (N=) vs (B) .................... (N= ) Outcome: Follow‐up: preop (A): 0 (0) (B): 0 (0) 6 months (A): 0 (0) (B): 0 (0) 12 months (A): 0 (0) (B): 0 (0) 24 months (A): 0 (0) (B): 0 (0) X months (A): 0 (0) (B): 0 (0) 4. Comparison: (A) .................. (N=) vs (B) .................... (N= ) Outcome: Follow‐up: preop (A): 0 (0) (B): 0 (0) 6 months (A): 0 (0) (B): 0 (0) 12 months (A): 0 (0) (B): 0 (0) 24 months (A): 0 (0) (B): 0 (0) X months (A): 0 (0) (B): 0 (0)