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Related Concept Videos

Muscles that Move the Leg01:23

Muscles that Move the Leg

The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed to...
Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

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 neck...

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Related Experiment Video

Updated: Jul 10, 2026

Evaluation of Stem Cell Therapies in a Bilateral Patellar Tendon Injury Model in Rats
09:31

Evaluation of Stem Cell Therapies in a Bilateral Patellar Tendon Injury Model in Rats

Published on: March 30, 2018

Spontaneous bilateral quadriceps tendon rupture.

N Vigneswaran1, K Lee, M Yegappan

  • 1Department of Orthopaedic Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433. vigneswaran_nallathamby@yahoo.com

Singapore Medical Journal
|November 3, 2007
PubMed
Summary

Spontaneous bilateral quadriceps tendon ruptures are rare. This case study details a 30-year-old man with end-stage renal failure who successfully recovered full knee movement after surgical repair of both quadriceps tendons.

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Area of Science:

  • Orthopedic Surgery
  • Nephrology
  • Musculoskeletal Disorders

Background:

  • Spontaneous quadriceps tendon ruptures are uncommon, particularly bilateral cases.
  • End-stage renal failure (ESRF) is a significant comorbidity that may affect tendon integrity.
  • This case highlights a rare presentation in a young patient with ESRF.

Observation:

  • A 30-year-old male patient with ESRF presented with spontaneous bilateral quadriceps tendon ruptures.
  • The patient underwent surgical repair of each quadriceps tendon at separate times.
  • Post-operative rehabilitation allowed for a full range of motion in both knees.

Findings:

  • Successful surgical outcomes are achievable for bilateral quadriceps tendon ruptures, even in patients with ESRF.
  • Early and appropriate surgical intervention is crucial for tendon healing and functional recovery.
  • This case demonstrates the potential for significant functional recovery despite severe underlying medical conditions.

Implications:

  • This case contributes to the limited literature on spontaneous bilateral quadriceps tendon ruptures in patients with ESRF.
  • It underscores the importance of considering tendon integrity in patients with chronic kidney disease.
  • Further research may explore the specific mechanisms linking ESRF to tendon pathology and optimal management strategies.