Table 2

Data that will be extracted from every study included in the review

1Authors and year of publication
2Country of origin of the study
3Type of study
4Study population
5Study completion rate
7Surgical approach: medial parapatellar; modified medial parapatellar according to Insall; subvastus; midvastus; trivector retaining; lateral; lateral with tuberositas osteotomy28
8Study population demographics
9Preoperative and postoperative frontal and sagittal plane knee alignment
10Measurement methods
10aIsometric/isokinetic strength measurement
10bAngle of isometric measurement/velocity of isokinetic measurement
10 cPatient position during the measurement (lying supine/side-lying/standing)
11Comparators: healthy individuals; asymptomatic contralateral side; no comparator
12Total duration of follow-up (weeks/months after the operation)
13Measurement stages (preoperative, follow-up in weeks/months after the operation)
14Information regarding the rehabilitation protocols
15Outcome (mean values, standard deviations (SDs) and confidence intervals (CIs))
15aAbsolute values of hip abductor torque in patients after TKA/UKA, or in asymptomatic control groups
15bTorque ratio (operated side/contralateral hip) of hip abductors in patients after TKA/UKA
15 cChange in hip abductor torque / hip abductor torque ratio from baseline to each follow-up
15dDifferences in hip abductor torque / torque ratios between patientsafter TKA/UKA and healthy control groups.
16Authors conclusions
17Information regarding risk of bias
  • TKA/UKA, total or unicompartmental knee arthroplasty.