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Postoperative Alignment and ROM Affect Patient Satisfaction After TKA

  • Symposium: Papers Presented at the Annual Meetings of the Knee Society
  • Published:
Clinical Orthopaedics and Related Research®

Abstract

Background

Patient satisfaction has increasingly been recognized as an important measure after total knee arthroplasty (TKA). However, we do not know yet how and why the patients are satisfied or dissatisfied with TKA.

Questions/purposes

We asked: (1) After TKA, how satisfied are patients and which activities were they able to do? (2) Are patient-derived scores related to physician-derived scores? (3) Which factors affect patient satisfaction and function?

Methods

We retrospectively evaluated 375 patients who had undergone 500 TKAs between February 22, 2000 and December 1, 2009. We sent a questionnaire for The 2011 Knee Society Knee Scoring System to the patients. We determined the correlation of patient- and physician-derived scores and factors relating to the five questions relating to satisfaction and the 19 questions relating function. The minimum followup was 2 years (mean, 5 years; range, 2–11 years).

Results

The mean score for symptoms was 19 (74%), 23 (59%) for patient satisfaction, 10 (64%) for patient expectations, and 53 (53%) for functional activities. We found a poor correlation between the patient-derived and the physician-derived scores. Old age and varus postoperative alignment negatively correlated with the satisfaction. Varus alignment and limited range of motion (ROM) negatively correlated with the expectation. Old age, rheumatoid arthritis, and limited ROM negatively correlated with the functional activities.

Conclusions

Most patients did not report symptoms, but they experienced difficulty with activities of daily living after TKA. Patient satisfaction is difficult to measure, but avoiding varus alignment and achieving better ROM appear to be important for increasing satisfaction and meeting expectations.

Level of Evidence

Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.

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Authors and Affiliations

Authors

Corresponding author

Correspondence to Shuichi Matsuda MD.

Additional information

Each author certifies that he or she has no commercial associations (eg, consultancies, stock ownership, equity interest, patent/licensing arrangements, etc) that might pose a conflict of interest in connection with the submitted article.

All ICMJE Conflict of Interest Forms for authors and Clinical Orthopaedics and Related Research editors and board members are on file with the publication and can be viewed on request.

Each author certifies that his or her institution approved the human protocol for this investigation, that all investigations were conducted in conformity with ethical principles of research, and that informed consent for participation in the study was obtained.

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Matsuda, S., Kawahara, S., Okazaki, K. et al. Postoperative Alignment and ROM Affect Patient Satisfaction After TKA. Clin Orthop Relat Res 471, 127–133 (2013). https://doi.org/10.1007/s11999-012-2533-y

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  • DOI: https://doi.org/10.1007/s11999-012-2533-y

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