Table 3

Multivariable-adjusteda association of ipsilateral knee/hip involvement with outcomes after primary total hip or knee arthroplasty (THA/TKA)
THA TKA
2 years 5 years 2 years 5 years
Odds ratio (95% CI) P value Odds ratio (95% CI) P value Odds ratio (95% CI) P value Odds ratio (95% CI) P value
Primary:
Moderate severe pain (ref, none) 2.3 (1.5 to 3.6) <0.001 1.8 (1.1 to 2.7) <0.01 3.3 (2.3 to 4.7) <0.001 1.8 (1.1 to 2.7) <0.01
Moderate severe activity limitation (ref, none) 3.1 (2.3 to 4.3) <0.001 3.6 (2.6 to 5.0) <0.001 3.6 (2.6 to 4.9) <0.001 2.2 (1.6 to 3.2) <0.001
Revision:
Moderate severe pain (ref, none) 1.9 (1.1 to 3.1) 0.01 2.2 (1.2 to 4.0) <0.01 2.0 (1.1 to 3.8) 0.02 NEb -
Moderate severe activity limitation (ref, none) 3.6 (2.2 to 5.8) <0.001 8.8 (4.3 to 17.6) <0.001 2.9 (1.4 to 5.8) 0.003 2.3 (1.0 to 5.0) 0.043

Adjusteda for age, gender, body mass index, comorbidity, American Society of Anesthesiologists (ASA) class, operative diagnosis, distance from the medical center, preoperative pain (for pain outcomes) and preoperative function (for function outcomes); additionally adjusted for implant fixation (cemented or not) in primary THA.

NEb, not estimable (too few cases with this outcome).

Singh and Lewallen

Singh and Lewallen BMC Medicine 2013 11:144   doi:10.1186/1741-7015-11-144

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