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The effects of age on patient-reported outcome measures in total knee replacements.
Bone Joint J. 2013 Jan; 95-B(1):38-44.BJ

Abstract

We present a comparison of patient-reported outcomes (PROMs) in relation to patient age, in patients who had received a total (TKR) or unicompartmental knee replacement (UKR). The outcome was evaluated using the Oxford knee score (OKS), EuroQol (EQ-5D) and satisfaction scores. Patients aged 65 to 84 years demonstrated better pre-operative function scores than those aged < 65 years (OKS, p = 0.03; EQ-5D, p = 0.048) and those aged ≥ 85 years (OKS, p = 0.03). Post-operative scores were comparable across age groups, but a linear trend for greater post-operative improvement in OKS and EQ-5D was seen with decreasing age (p < 0.033). The overall mean satisfaction score at six months was 84.9, but those aged < 55 years exhibited a lower mean level of satisfaction (78.3) compared with all other age groups (all p < 0.031). The cumulative overall two-year revision rate was 1.3%. This study demonstrates that good early outcomes, as measured by the OKS and EQ-5D, can be anticipated following knee replacement regardless of the patient's age, although younger patients gain greater improvement. However, the lower satisfaction in those aged < 55 years is a concern, and suggests that outcome is not fully encapsulated by the OKS and EQ-5D evaluation, and raises the question whether the OKS alone is an appropriate measure of pain and function in younger, more active individuals.

Authors+Show Affiliations

University of Oxford, Nuffield Department of Orthopaedics, Rheumatology & Musculoskeletal Sciences, Windmill Road, Oxford OX3 7LD, UK. derfel.williams@ndorms.ox.ac.ukNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23307671

Citation

Williams, D P., et al. "The Effects of Age On Patient-reported Outcome Measures in Total Knee Replacements." The Bone & Joint Journal, vol. 95-B, no. 1, 2013, pp. 38-44.
Williams DP, Price AJ, Beard DJ, et al. The effects of age on patient-reported outcome measures in total knee replacements. Bone Joint J. 2013;95-B(1):38-44.
Williams, D. P., Price, A. J., Beard, D. J., Hadfield, S. G., Arden, N. K., Murray, D. W., & Field, R. E. (2013). The effects of age on patient-reported outcome measures in total knee replacements. The Bone & Joint Journal, 95-B(1), 38-44. https://doi.org/10.1302/0301-620X.95B1.28061
Williams DP, et al. The Effects of Age On Patient-reported Outcome Measures in Total Knee Replacements. Bone Joint J. 2013;95-B(1):38-44. PubMed PMID: 23307671.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effects of age on patient-reported outcome measures in total knee replacements. AU - Williams,D P, AU - Price,A J, AU - Beard,D J, AU - Hadfield,S G, AU - Arden,N K, AU - Murray,D W, AU - Field,R E, PY - 2013/1/12/entrez PY - 2013/1/12/pubmed PY - 2013/3/12/medline SP - 38 EP - 44 JF - The bone & joint journal JO - Bone Joint J VL - 95-B IS - 1 N2 - We present a comparison of patient-reported outcomes (PROMs) in relation to patient age, in patients who had received a total (TKR) or unicompartmental knee replacement (UKR). The outcome was evaluated using the Oxford knee score (OKS), EuroQol (EQ-5D) and satisfaction scores. Patients aged 65 to 84 years demonstrated better pre-operative function scores than those aged < 65 years (OKS, p = 0.03; EQ-5D, p = 0.048) and those aged ≥ 85 years (OKS, p = 0.03). Post-operative scores were comparable across age groups, but a linear trend for greater post-operative improvement in OKS and EQ-5D was seen with decreasing age (p < 0.033). The overall mean satisfaction score at six months was 84.9, but those aged < 55 years exhibited a lower mean level of satisfaction (78.3) compared with all other age groups (all p < 0.031). The cumulative overall two-year revision rate was 1.3%. This study demonstrates that good early outcomes, as measured by the OKS and EQ-5D, can be anticipated following knee replacement regardless of the patient's age, although younger patients gain greater improvement. However, the lower satisfaction in those aged < 55 years is a concern, and suggests that outcome is not fully encapsulated by the OKS and EQ-5D evaluation, and raises the question whether the OKS alone is an appropriate measure of pain and function in younger, more active individuals. SN - 2049-4408 UR - https://www.unboundmedicine.com/medline/citation/23307671/The_effects_of_age_on_patient_reported_outcome_measures_in_total_knee_replacements_ L2 - https://online.boneandjoint.org.uk/doi/full/10.1302/0301-620X.95B1.28061?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -