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Clinical Orthopaedics and Related Research®

, Volume 468, Issue 7, pp 1759–1764 | Cite as

Influence of Gender on Age of Treatment with TKA and Functional Outcome

  • Brian S. ParsleyEmail author
  • Roberto Bertolusso
  • Melvyn Harrington
  • Adam Brekke
  • Philip C. Noble
Symposium: Gender-specific Issues in Orthopaedic Surgery

Abstract

Background

Previous studies suggest differences may exist between men and women in terms of knee function before and after total knee replacement. This may be related to the efficacy of the procedure itself or to differences in the severity of disability of male and female patients at the time of surgery.

Questions/purposes

We evaluated differences in the age, preoperative deformity, range-of-motion, and Knee Society scores of men and women who underwent TKA. All parameters were measured at the time of the initial preoperative evaluation and at postoperative followup.

Methods

We studied 698 patients who underwent elective TKA between 1996 and 2007. This population consisted of 428 women (61%) and 270 men (39%), all of whom underwent rehabilitation utilizing a standardized hyperflexion protocol with immediate initiation of full weight-bearing postoperatively.

Results

The men were on average three years younger than the women (mean 63.5 versus 66.6 years, respectively). Preoperative ROM, postoperative ROM, and changes in ROM and body mass index were similar between groups. Knee Society Knee scores were similar preoperatively (47.4 [men] versus 46.7 [women]), but four points higher in men at followup (89.2 versus 85.2). Women had lower Knee Function scores than men preoperatively (45.2 versus 57.1), and postoperatively (65.3 versus 73.9).

Conclusions

Women who undergo TKA seek treatment at a later stage than men and have greater functional disability at the time of surgery. Differences in functional scores persist after TKA. Earlier initiation of treatment may enhance postoperative outcome.

Level of Evidence

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

Keywords

Knee Replacement Total Knee Replacement Knee Society Score Knee Score Knee Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

We thank Drew Stal for his assistance in the preparation of our manuscript.

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Copyright information

© The Association of Bone and Joint Surgeons® 2010

Authors and Affiliations

  • Brian S. Parsley
    • 1
    Email author
  • Roberto Bertolusso
    • 2
  • Melvyn Harrington
    • 1
  • Adam Brekke
    • 3
  • Philip C. Noble
    • 1
  1. 1.Baylor College of MedicineHoustonUSA
  2. 2.Rice UniversityHoustonUSA
  3. 3.Institute of Orthopedic Research and EducationHoustonUSA

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