Table 4.
Association of recovery and duration of postoperative physical therapy in total knee arthroplasty patients 6 months after surgery
|
Model 1
Multivariable OR [ 95% CI] |
Model 1 + Musculoskeletal comorbidities OR [ 95% CI] |
Model 1 + Non-musculoskeletal comorbidities OR [ 95% CI] |
Model 1 + Sensory Impairments OR [ 95% CI] |
Model 1 + frequency comorbidities OR [ 95% CI] |
|
|---|---|---|---|---|---|
| KOOS ADL | 0.97 [0.97 – 0.98] | 0.99 [0.98 – 1.00] | 0.98 [0.96 – 1.00] | 0.97 [0.96 – 0.98] | 0.97 [0.96 – 0.99] |
| Comorbidity | NA | 5.78 [1.21 – 27.67] | 1.64 [0.24 – 11.04] | 1.41 [0.12 – 17.14] | 0.94 [0.64 – 1.41] |
| ADL x comorbidity | NA | 0.98 [0.96 – 1.00] | 0.99 [0.97 – 1.01] | 0.99 [0.96 – 1.03] | 1.00 [1.00 – 1.01] |
| KOOS Pain | 0.97 [0.96 – 0.98] | 0.99 [0.97 – 1.00] | 0.98 [0.97 – 1.00] | 0.97 [0.96 – 0.98] | 0.98 [0.96 – 0.99] |
| Comorbidity | NA | 6.17 [1.23 – 30.92] | 3.95 [0.66 – 23.60] | 0.83 [0.06 – 2.32] | 1.13 [0.72 – 1.76] |
| Pain x comorbidity | NA | 0.98 [0.96 – 1.00] | 0.98 [0.96 – 1.00] | 1.00 [0.97 – 1.03] | 1.00 [0.99 – 1.00] |
| KOOS Symptoms | 0.97 [0.96 – 0.98] | 0.98 [0.97 – 1.00] | 0.97 [0.95 – 0.99] | 0.97 [0.96 – 0.98] | 0.97 [0.96 – 0.99] |
| Comorbidity | NA | 3.55 [0.76 – 16.60] | 0.93 [0.18 – 4.91] | 5.56 [0.24 – 131.75] | 1.04 [0.70 – 1.55] |
| Symptoms x comorbidity | NA | 0.99 [0.97 – 1.01] | 1.00 [0.98 – 1.02] | 0.97 [0.93 – 1.02] | 1.00 [0.99 – 1.00] |
| KOOS Sport and Recreation | 0.98 [0.98 – 0.99] | 0.99 [0.98 – 0.99] | 0.98 [0.97 – 0.99] | 0.98 [0.98 – 0.99] | 0.98 [0.97 – 0.99] |
| Comorbidity | NA | 0.98 [0.53 – 1.82] | 0.92 [0.47 – 1.78] | 1.24 [0.45 – 3.42] | 0.93 [0.79 – 1.08] |
| Sport and Recreation x comorbidity | NA | 1.00 [0.99 – 1.01] | 1.00 [0.99 – 1.01] | 0.98 [0.96 – 1.01] | 1.00 [1.00 – 1.00] |
| KOOS Quality of life | 0.98 [0.97 – 0.98] | 0.99 [0.98 – 1.00] | 0.98 [0.97 – 0.99] | 0.98 [0.97 – 0.99] | 0.98 [0.97 – 0.99] |
| Comorbidity | NA | 2.27 [0.82 – 6.29] | 0.90 [0.29 – 2.80] | 1.05 [0.23 – 4.76] | 1.00 [0.78 – 1.30] |
| Quality of life x comorbidity | NA | 0.99 [0.97 – 1.00] | 1.00 [0.98 – 1.02] | 1.00 [0.97 – 1.02] | 1.00 [1.00 – 1.00] |
ADL = Activities of daily living; KOOS = Knee disability and Osteoarthritis Outcome Score; TKA = total knee arthroplasty
Model 1: long duration of PT = bo + b1x (KOOS score) adjusted for BMI, age, sex, living status, Short Form-12 Mental Component Summary scale and KOOS score baseline
In the other models comorbidities (musculoskeletal, non-musculoskeletal or sensory impairment and the frequency of comorbidities) and their interaction with recovery were also taken into account