TKA patients experience less improvement than THA patients at 3 and 12 months after surgery. A retrospective
Carlos J Marques1, Hans O Pinnschmidt2, Karina Bohlen3
1Science Office of the Orthopaedic and Joint Replacement Department at the Schoen Clinic Hamburg Eilbek, Dehnhaide 120, D-22081, Hamburg, Germany.
Purpose:
To investigate whether WOMAC scores changes after THA or TKA are gender and joint specific.
Methods:
Retrospective cohort study. The data of 855 THA and 684 TKA patients were analyzed.
Results:
Follow-up time (p < 0.001), gender (p < 0.001), joint (p < 0.001), and interaction FU by joint (p < 0.001) had significant effects on WOMAC total and sub-scores. Patients after TKA perceived less improvement in all dimensions in comparison to THA patients (p < 0.001).
Conclusion:
WOMAC score changes after THA or TKA are joint-specific. Patients after TKA perceived less improvement. These results can be used to adjust patients' expectations.


