Table 2.

Detail of variables and times for evaluation of outcomes

Time point	Enrolment	BL	BP	AP	AI	12 m
Eligibility screen	x
Informed consent	x
Randomization	x
Assessments
Demographic and biomedical	x
Primary
Self-reported functionality	KOOS	x	x	x	x	x
Balance (overall)	Berg Balance Scale	x	x	x	x	x
Secondary
Function	ROM (flexion)	x	x	x	x	x
	ROM (extension)	x	x	x	x	x
	Strength	x	x	x	x	x
Balance (dynamic)	Timed Up & Go	x	x	x	x	x
(static)	One-leg Stand	x	x		x	x
(stability)	Functional Reach	x	x	x	x	x
Quality of Life	EuroQoL	x			x	x
Anxiety	EuroQoL(5D)	x	x		x
Cost-effectiveness
	Qaly					x
Patient expectations
		x			x	x
Interventions		BL	BP	AP	AI	12 m
Non-active comparator				x------x
In-hospital preoperative		x------x		x------x
In-home preoperative		x------x		x------x

BL Baseline, BP Before procedure, AP After procedure, AI After intervention, KOOS Knee Injury Osteoartritis Outcome Score, ROM Range of Movement in degrees, Qaly Quality adjusted life year