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Does clinically important change in function after knee replacement guarantee good absolute function? The multicenter osteoarthritis study
- Source :
- The Journal of rheumatology, vol 41, iss 1
- Publication Year :
- 2014
- Publisher :
- eScholarship, University of California, 2014.
-
Abstract
- Objective.Poor functional outcomes post–knee replacement are common, but estimates of its prevalence vary, likely in part because of differences in methods used to assess function. The agreement between improvement in function and absolute good levels of function after knee replacement has not been evaluated. We evaluated the attainment of improvement in function and absolute good function after total knee replacement (TKR) and the agreement between these measures.Methods.Using data from The Multicenter Osteoarthritis (MOST) Study, we determined the prevalence of achieving a minimal clinically important improvement (MCII, ≥ 14.2/68 point improvement) and Patient Acceptable Symptom State (PASS, ≤ 22/68 post-TKR score) on the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Physical Function subscale at least 6 months after knee replacement. We also assessed the frequency of co-occurrence of the 2 outcomes, and the prevalence according to pre-knee replacement functional status.Results.We included 228 subjects who had a knee replacement during followup (mean age 65 yrs, mean body mass index 33.4, 73% female). Seventy-one percent attained the PASS for function after knee replacement, while only 44% attained the MCII. Of the subjects who met the MCII, 93% also attained the PASS; however, of subjects who did not meet the MCII, 54% still achieved a PASS. Baseline functional status was associated with attainment of each MCII and PASS.Conclusion.There was only partial overlap between attainment of a good level of function and actually improving by an acceptable amount. Subjects were more likely to attain an acceptable level of function than to achieve a clinically important amount of improvement post–knee replacement.
- Subjects :
- musculoskeletal diseases
Male
medicine.medical_specialty
WOMAC
medicine.medical_treatment
Replacement
Clinical Sciences
Immunology
Knee replacement
Osteoarthritis
Physical function
Severity of Illness Index
Article
Arthroplasty
Patient satisfaction
Rheumatology
Severity of illness
Immunology and Allergy
Medicine
Humans
Knee
Arthroplasty, Replacement, Knee
Pain Measurement
Aged
PHYSICAL FUNCTION
OUTCOMES
KNEE REPLACEMENT
business.industry
Recovery of Function
Osteoarthritis, Knee
Middle Aged
medicine.disease
Arthritis & Rheumatology
Treatment Outcome
Patient Satisfaction
Physical therapy
Public Health and Health Services
Functional status
Female
business
Body mass index
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- The Journal of rheumatology, vol 41, iss 1
- Accession number :
- edsair.doi.dedup.....e78d5137c9ed14c0378de83636aa94bf