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Related Experiment Video

Updated: Jun 21, 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

Return to work following knee arthroplasty.

J A J Foote¹, H K Smith, S C Jonas

¹Bristol, Royal Infirmary, Bristol BS2 8HW, United Kingdom. Julian.Foote@btinternet.com

|July 28, 2009

Summary

Total knee replacement (TKR) and unicompartmental knee replacement (UKR) effectively return patients under 60 to work. Patellofemoral replacement (PFR) showed lower return-to-work rates and longer recovery times.

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Area of Science:

Orthopaedic Surgery
Rehabilitative Medicine
Occupational Health

Background:

Knee replacement surgery aims to restore function and quality of life.
Employment status is a key indicator of functional recovery after surgery.
Previous studies have not directly compared employment outcomes across different knee replacement types.

Purpose of the Study:

To compare the effect of Patellofemoral replacement (PFR), Unicompartmental replacement (UKR), and Total knee replacement (TKR) on the employment status of patients under 60.
To evaluate return-to-work rates, time to return to work, and subjective work ability following these procedures.

Main Methods:

Retrospective cohort study of 109 patients under 60 who underwent PFR, UKR, or TKR.
Data collected from hospital records and postoperative questionnaires on occupational status.

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Last Updated: Jun 21, 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

Statistical analysis to compare outcomes between the three surgical groups.

Main Results:

82% of TKR and UKR patients returned to work, compared to 54% of PFR patients (p=0.047).
PFR patients took significantly longer to return to work (20 weeks) than UKR (11 weeks) or TKR (12 weeks) patients (p=0.01).
Subjective work ability was poorer in the PFR group (p=0.049).

Conclusions:

TKR and UKR are effective in returning patients under 60 to active employment, typically within 3 months.
PFR is associated with lower return-to-work rates, longer recovery times, and diminished subjective work capacity compared to UKR and TKR.
This study highlights the differential impact of knee replacement types on occupational outcomes in younger patients.