Clinical Research Directory

Inclusion Criteria: i) unilateral TKA; ii) age 55 years old and above; iii) able to engage in outpatient physiotherapy; iii) postoperative knee flexion ≥75° and knee extension ≤5°; iv) able to ambulate independently preoperatively. Exclusion Criteria: i) had revision TKA or fully constrained knee arthroplasty; ii) had knee replacement for indications other than osteoarthritis; iii) had post-operative complications during hospital stay; iv) were unable to participate due to cognitive impairment or language barriers; v) had acute spinal diseases or joint, muscle or systemic diseases affecting gait; iv) had comorbid health conditions that would prevent active participation (e.g. prior hemiplegic stroke, severe cardiorespiratory illnesses.