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Updated: Jun 2, 2026

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Published on: March 1, 2024

Patellofemoral function after total knee arthroplasty: gender-related differences.

Lorenzo Sensi¹, Roberto Buzzi, Francesco Giron

¹I Clinica Ortopedica - University of Florence, CTO Hospital, Firenze, Italy.

The Journal of Arthroplasty

|April 19, 2011

Summary

This study compared patellofemoral outcomes after total knee arthroplasty in men and women. Women experienced lower functional and patellar scores, despite similar overall knee function.

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Last Updated: Jun 2, 2026

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Published on: March 1, 2024

Area of Science:

Orthopedic Surgery
Biomedical Engineering
Knee Arthroplasty Research

Background:

Patellofemoral joint function is crucial for total knee arthroplasty (TKA) success.
Understanding gender-specific outcomes in TKA is essential for personalized patient care.
Dome patellar arthroplasty is a common technique in posterior-stabilized TKA.

Purpose of the Study:

To evaluate and compare patellofemoral outcomes in male and female patients undergoing TKA with posterior-stabilized, dome patellar arthroplasty.
To assess the impact of weight-bearing versus non-weight-bearing imaging on patellofemoral evaluation.
To correlate radiologic findings with clinical outcomes and pain levels.

Main Methods:

A comparative study of 200 patients (100 men, 100 women) undergoing TKA with posterior-stabilized, dome patellar arthroplasty.
Average follow-up of 6 years, utilizing Knee Society scores and Hospital for Special Surgery (HSS) patellar scores.
Radiographic assessment included standard, weight-bearing axial views, and CT scans for component rotation.

Main Results:

Both groups achieved satisfactory and comparable knee scores.
Women reported significantly lower functional and patellar scores compared to men.
Weight-bearing axial views revealed decreased lateral patellar tilt, subluxation, and impingement compared to non-weight-bearing views.
Medial bony impingement, observed only in weight-bearing views, correlated with patient pain.

Conclusions:

While overall knee function is similar, women may experience poorer functional and patellar outcomes after TKA with this implant.
Weight-bearing imaging provides a more accurate assessment of patellofemoral mechanics and impingement during TKA.
Medial bony impingement in weight-bearing views is a significant factor associated with pain post-TKA.