Year 2021
October 2021


Abstract Title
Functional ability to squat and kneel 1-year post knee arthroplasty surgery: A study amongst South-East Asian population



MOH Holdings Pte Ltd (MOHH)1, Tan Tock Seng Hospital2

Background & Hypothesis

Western data has shown that the ability to squat and kneel after knee arthroplasty has traditionally been low, citing that patients did not require these actions to perform most of their daily activities. However, in many Asian cultures, these are needed for essential activities such as daily prayers and having a meal. We explore patients’ ability to squat and kneel after knee arthroplasty and factors that can prognosticate the ability to do so.


A total for 852 knees were identified retrospectively after undergoing knee arthroplasty surgery from a single institution for the study.

These patients were followed up for a period of 1 year, where they were assessed objectively using functional outcome scores (Oxford Knee Score, Knee Society Score) and clinical measurement of range of movement and the ability to squat and/or kneel.


Of the 852 knees recruited, 342 had the ability to squat 1-year post knee arthroplasty surgery while 294 patient were able to kneel. 246 of the 852 knees were able to achieve both squatting and kneeling. 

Further analysis showed that male gender and post-operative range of motion were two significant (p<0.05) factors that correlated with the patient’s ability to squat and/or kneel post-operatively.

Functional outcome scores were higher in each sub-group of patients as compared to those who were unable squat and/or kneel.

Discussion & Conclusion

This study reinforced the fact that kneeling and squatting is not a guarantee after surgery but male gender and good range of motion are good prognostic factors for better outcomes.