Table 1.

Inclusion and exclusion criteria

Inclusion criteria

• Aged 45–70 years

• Diagnosed with unilateral primary hip osteoarthritis (OA) or ­secondary OA due to mild hip dysplasia (center-edge angle >20°)

• Scheduled for primary cementless total hip arthroplastya

Exclusion criteria

• Symptoms in several joints (hip, knee, or ankle) with expected total joint arthroplasty within 1 year

• Prior total joint arthroplasty at any joint (hip, knee, or ankle) or major lower limb surgery, still causing symptoms

• BMI >35

• Any physical disability preventing the patient from walking freely without walking aids

• Any neurological disease (e.g. cerebral thrombosis, Parkinson’s disease) compromising walking ability

• Any severe medical condition compromising physical function (e.g. chronic heart failure, chronic obstructive pulmonary disease)

• Severe dementia (OMC <18)

• Inability to read and understand written and oral instructions in Danish

^aCementless Bi-metric stem and Exceed ABT Ringloc-x shell.

OMC: orientation-memory-concentration test.