Patellar alteration - Anterior knee pain

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The patella is the flat, round bone that is palpable at the front of the knee. It articulates with the femur and the tendon of the quadriceps muscle of the leg is included.

When any of these three structures (tendon, patella and femur) is altered, continuous pain appears in the anterior zone of the knee and sensation of rubbing when flexing the leg.

The diagnosis is based on a correct physical exploration and tests of image like radiography and/or an ultrasound of the knee.

The treatment must correct the cause that triggered it to avoid prolonging the symptoms. Pain and inflammation will be controlled with analgesics and anti-inflammatory drugs. Therapies of cold and heat can favor the recovery.

If the symptoms described above are present, it is advisable to visit the orthopedic surgeon to confirm the diagnosis and start treatment early.

Bibliographic references
  1. Bruce C Anderson, MD. General evaluation of the adult with knee pain. UpToDate. Apr 18, 2016.
  2. Anthony Beutler, MD. Karl B Fields, MD. Approach to the athlete or active adult with knee pain. UpToDate. Nov 30, 2015.
  3. Niva MH, Kiuru MJ, Haataja R, Pihlajamäki HK. Bone stress injuries causing exercise-induced knee pain. Am J Sports Med 2006; 34:78.
  4. Stiell IG, Greenberg GH, Wells GA, et al. Derivation of a decision rule for the use of radiography in acute knee injuries. Ann Emerg Med 1995; 26:405.
  5. Cush JJ. Valoración de los trastornos articulares y musculoesqueléticos. Harrison. Principios de Medicina Interna. Volumen 2. 19º Edición: 2221-2222 i 2230.
Author
Dr. Sara Vitoria
Copyright
© TeckelMedical 2026

Symptoms

    Kneecap pain


    Knee pain increase when pressing on the kneecap


    Kneecap rubs against the femur when bending the knee


    Knee pain increase while remaining seated


    Pain at the front of the knee increases when going down the stairs

Symptoms to watch out for

Pain that does not subside with analgesics.
Fever (temperature higher than 100.4 ºF)

Self-care

Take over-the-counter pain relievers or anti-inflammatories.
Apply local cold to the injured area 3 times a day to reduce inflammation.
Get regular physical activity at least 3 times a week that is appropriate for your age and physical condition.