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Bones of the Lower Limb: Femur and Patella

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The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...

Knee Joint

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The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
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Quadriceps Tendon Ruptures After Total Knee Arthroplasty.

Gabrielle Swartz¹, James T Layson², Daniel Hameed¹

¹LifeBridge Health, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopedics, Baltimore, Maryland.

The Journal of Knee Surgery

|April 14, 2025

Summary

Quadricep tendon ruptures after total knee arthroplasty are a serious complication. This review covers causes, risk factors, and surgical and non-surgical treatment options for these challenging cases.

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Published on: April 30, 2014

Area of Science:

Orthopedic Surgery
Biomedical Engineering
Reconstructive Surgery

Background:

Quadricep tendon ruptures are a challenging complication after total knee arthroplasty (TKA).
These ruptures can lead to significant functional impairment and necessitate further surgical intervention.
Understanding the specific risks associated with TKA is crucial for prevention and management.

Purpose of the Study:

To review the anatomical considerations, causes, and risk factors for quadricep tendon ruptures post-TKA.
To provide a comprehensive overview of current treatment strategies for these ruptures.
To outline indications for various management approaches, from conservative care to complex reconstructions.

Main Methods:

Literature review of anatomical features, etiology, and risk factors.
Analysis of treatment options including nonoperative management, direct repair, augmented repair, mesh reconstruction, and allograft reconstruction.
Evaluation of indications for each treatment modality.

Main Results:

Identification of key anatomical and biomechanical factors contributing to QT rupture after TKA.
Categorization of risk factors specific to the TKA population.
Detailed description of surgical techniques and their respective indications.

Conclusions:

Quadricep tendon ruptures after TKA require careful consideration of patient-specific factors and rupture characteristics.
A range of treatment options exist, from conservative management to advanced reconstructive techniques.
Optimal outcomes depend on appropriate selection and timely execution of the chosen treatment strategy.