You are here

Quadriceps Tendinopathy M76.899 726.60

   
ICD-9 Classification / Treatment
Etiology / Natural History Associated Injuries / Differential Diagnosis
Anatomy Complications
Clinical Evaluation Follow-up Care
Xray / Diagnositc Tests Review References
  • synonyms: Quadriceps tendinitis, quad tendinitis, quadriceps tendinosis, quad tendinosis,

Quadriceps Tendinitis ICD-10

Quadriceps Tendinitis ICD-9

  • 726.60 = enthesopathy of knee , unspecified.

Quadriceps Tendinitis Etiology / Epidemiology / Natural History

  • Uncommon
  • Chonric tendon degeneration without inflammation
  • Associated with jumping sports: volleyball, basketball, high jump, long jump.

Quadriceps Tendinitis Anatomy

  • Knee extensor mechanism = rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.
  • Quadriceps tendon has three layers. Superficial layer = rectus femoris. Intermediate layer = vastus medialis and lateralis. Deep Layer = vastus intermedius.
  • Quadriceps tendon has a hypovascular area 1-2cm superior to the patella. (Yepes H, JBJS 2008:90A:2135).

Quadriceps Tendinitis Clinical Evaluation

  • Localized tenderness at the insertion of the quadriceps tendon into the proximal pole of the patella, generally resulting from repetivie activities, high level athletes playing on hard surfaces.
  • May have pain with knee extension against resistance.
  • May be associated with clicking. 

Quadriceps Tendinitis Xray / Diagnositc Tests

  • Weight -bearing A/P, lateral and sunrise views of the knee are generally normal.

Quadriceps Tendinitis Classification / Treatment

  • Rest, activity modifications, physical therapy (hamstring stretching, ice, massage, ultrasound, iontophoresis, phonophoresis)
  • May consider platelet rich plasma injection
  • Surgery: rarely indicated. Excision of degenerative tissue and calcifications (Ferretti A, Int 1985;239).

Quadriceps Tendinitis Associated Injuries / Differential Diagnosis

Quadriceps Tendinitis Complications

Quadriceps Tendinitis Follow-up Care

Quadriceps Tendinitis Review References

Disclaimer

The information on this website is intended for orthopaedic surgeons.  It is not intended for the general public. The information on this website may not be complete or accurate.  The eORIF website is not an authoritative reference for orthopaedic surgery or medicine and does not represent the "standard of care".  While the information on this site is about health care issues and sports medicine, it is not medical advice. People seeking specific medical advice or assistance should contact a board certified physician.  See Site Terms / Full Disclaimer