Appendix 1. Data extraction formfor comparison ofTKAs with fixed bearings with TKAs with rotating platform prostheses

General data

Researcher: SGC, JTM
Author
Level of evidence: I, II, III
Group / Fixed bearing / Rotating platform
Enrolled, n=
Posterior cruciate ligament status: posterior stabilized, cruciate retaining, mixed, unclear
Cement status: cemented, hybrid, cemented and hybrid, not reported
Patella replacement status: all, no, some, not reported
Implant
Manufacturer
Gender, male
Gender, female
Age, mean ± SD (95%CI) [years]
Weight, mean ± SD (95%CI) [kg]
Height, mean ± SD (95%CI) [cm]
BMI, mean ± SD (95%CI) [kg/m2]

Followup details

Fixed bearing / Rotating platform
Followup, mean ± SD (95%CI) [months]
Available at followup, n=
At latest followup

Clinical variables

Fixed bearing / Rotating platform
Knee Society Knee Score, mean ± SD
Knee Society Function Score, mean ± SD
Hospital for Special Surgery total score, mean ± SD
SF-12 Physical score, mean ± SD
SF-12 Mental score, mean ± SD

ROM variables

Fixed bearing / Rotating platform
Flexion contracture, mean ± SD (degrees)
ROM extension, mean ± SD (degrees)
ROM flexion, mean ± SD (degrees)
ROM total, mean ± SD (degrees)

Radiographic incidence

Fixed bearing / Rotating platform
Radiographic loosening
Radiolucent lines total
Radiolucent lines femoral
Radiolucent lines tibial
Radiolucent lines patellar
Radiolucent lines nonprogressive
Radiolucent lines progressive

Alignment variables

Fixed bearing / Rotating platform
Mechanical alignment, mean ± SD
Component alignment femoral AP, mean ± SD
Component alignment femoral sagittal, mean ± SD
Component alignment tibial AP, mean ± SD
Component alignment tibial sagittal, mean ± SD

Complication incidence

Fixed bearing / Rotating platform
Anterior knee pain
Bearing breakage
Bearing dislocation
Clicking
Deep infection
Deep vein thrombosis
Infection
Instability
Neurovascular injury
Pulmonary embolism
Pain
Patellar tilt
Periprosthetic fracture
Peroneal nerve palsy
Reoperation not revision
Spinout
Stiffness manipulation
Superficial infection
Wear

Revision incidence

Fixed bearing / Rotating platform
Any reason
Attributable to bearing dislocation
Attributable to deep infection
Attributable to loosening
Attributable to infection
Attributable to persistent pain
Survival