Tags

Type your tag names separated by a space and hit enter

Total versus unicompartmental knee replacement for isolated lateral osteoarthritis: a matched-pairs study.
Int Orthop. 2014 Nov; 38(11):2259-64.IO

Abstract

PURPOSE

The aim of this study was to compare the functional outcome of patients following unicompartmental knee replacement (UKR) using the Oxford domed lateral UKR to patients who underwent cruciate-retaining total knee replacement (TKR) for isolated osteoarthritis in the lateral compartment.

METHODS

With the help of our institutional database, we retrospectively identified 22 matched pairs with regards to age, gender and body mass index (BMI). Functional outcome was measured using the Oxford Knee Score (OKS) and range of motion (ROM). Complications and revisions were recorded.

RESULTS

The mean follow-up was 22 (UKR) and 19 (TKR) months, respectively. Patients following UKR had a statistically significant higher mean postoperative OKS and ROM: mean OKS was 43 [standard deviation (SD) 4] for UKR and 37 (SD 9) for TKR, respectively (p = 0.023); ROM was 127° (SD 13) for UKR and 107° (SD 17) for TKR (p < 0.001). Additionally the change in score was statistically significant higher in patients following UKR in the OKS (14.3 (SD 6) vs. 9.6 (SD 8)) and in the range of motion (+12° (SD 19) vs. -3° (SD 20)), (p = 0.041 and p = 0.01 respectively). Survival at two years using revision for any reason as the endpoint was 96% [95% confidence interval (CI) 72-99] for UKR and 100% for TKR (Log-rank test, p = 0.317).

CONCLUSION

The functional results of mobile-bearing UKR for isolated osteoarthritis in the lateral compartment compare favourably to those after cruciate-retaining TKR in the short term. To compare survival and complications after both procedures, longer-term follow-up is necessary.

Authors+Show Affiliations

Department of Orthopaedic and Trauma Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118, Heidelberg, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

25112651

Citation

Walker, Tilman, et al. "Total Versus Unicompartmental Knee Replacement for Isolated Lateral Osteoarthritis: a Matched-pairs Study." International Orthopaedics, vol. 38, no. 11, 2014, pp. 2259-64.
Walker T, Gotterbarm T, Bruckner T, et al. Total versus unicompartmental knee replacement for isolated lateral osteoarthritis: a matched-pairs study. Int Orthop. 2014;38(11):2259-64.
Walker, T., Gotterbarm, T., Bruckner, T., Merle, C., & Streit, M. R. (2014). Total versus unicompartmental knee replacement for isolated lateral osteoarthritis: a matched-pairs study. International Orthopaedics, 38(11), 2259-64. https://doi.org/10.1007/s00264-014-2473-0
Walker T, et al. Total Versus Unicompartmental Knee Replacement for Isolated Lateral Osteoarthritis: a Matched-pairs Study. Int Orthop. 2014;38(11):2259-64. PubMed PMID: 25112651.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Total versus unicompartmental knee replacement for isolated lateral osteoarthritis: a matched-pairs study. AU - Walker,Tilman, AU - Gotterbarm,Tobias, AU - Bruckner,Thomas, AU - Merle,Christian, AU - Streit,Marcus R, Y1 - 2014/08/12/ PY - 2014/04/23/received PY - 2014/07/17/accepted PY - 2014/8/13/entrez PY - 2014/8/13/pubmed PY - 2015/11/3/medline SP - 2259 EP - 64 JF - International orthopaedics JO - Int Orthop VL - 38 IS - 11 N2 - PURPOSE: The aim of this study was to compare the functional outcome of patients following unicompartmental knee replacement (UKR) using the Oxford domed lateral UKR to patients who underwent cruciate-retaining total knee replacement (TKR) for isolated osteoarthritis in the lateral compartment. METHODS: With the help of our institutional database, we retrospectively identified 22 matched pairs with regards to age, gender and body mass index (BMI). Functional outcome was measured using the Oxford Knee Score (OKS) and range of motion (ROM). Complications and revisions were recorded. RESULTS: The mean follow-up was 22 (UKR) and 19 (TKR) months, respectively. Patients following UKR had a statistically significant higher mean postoperative OKS and ROM: mean OKS was 43 [standard deviation (SD) 4] for UKR and 37 (SD 9) for TKR, respectively (p = 0.023); ROM was 127° (SD 13) for UKR and 107° (SD 17) for TKR (p < 0.001). Additionally the change in score was statistically significant higher in patients following UKR in the OKS (14.3 (SD 6) vs. 9.6 (SD 8)) and in the range of motion (+12° (SD 19) vs. -3° (SD 20)), (p = 0.041 and p = 0.01 respectively). Survival at two years using revision for any reason as the endpoint was 96% [95% confidence interval (CI) 72-99] for UKR and 100% for TKR (Log-rank test, p = 0.317). CONCLUSION: The functional results of mobile-bearing UKR for isolated osteoarthritis in the lateral compartment compare favourably to those after cruciate-retaining TKR in the short term. To compare survival and complications after both procedures, longer-term follow-up is necessary. SN - 1432-5195 UR - https://www.unboundmedicine.com/medline/citation/25112651/Total_versus_unicompartmental_knee_replacement_for_isolated_lateral_osteoarthritis:_a_matched_pairs_study_ L2 - https://dx.doi.org/10.1007/s00264-014-2473-0 DB - PRIME DP - Unbound Medicine ER -