Table 1

The Population, Intervention, Comparison, Outcome, Study design process24

ItemSpecification
Population or participants and conditions of interestPatients with OA or AVN of the knee (any age, gender and severity)
InterventionsTKA/UKA
Comparisons or control groupsFor comparison between limbs of the same subject: asymptomatic contralateral hip and knee
For comparison between patients and heathy individuals: asymptomatic control subjects
Outcomes of interestMuscle strength of hip abductors
Study designsAny study design, published studies, conference abstracts to be considered
  • AVN, avascular necrosis; OA, osteoarthritis; TKA/UKA, total or unicompartmental knee arthroplasty.