synonyms:Jumper's Knee, patellar tendonosis, patellar tendinopathy
Patellar Tendonitis ICD-10
Patellar Tendonitis ICD-9
- 726.64 (Patellar tendinitis)
Patellar Tendonitis Etiology / Epidemiology / Natural History
- Believed to related to repeated loading of the knee extensor mechanism.
- Pathology shows hypercellularity, neovascularization and an absence of inflammatory cells. Related to recurrent microtrauma.
- Generally associated with jumping sports; basketball, volleyball
Patellar Tendonitis Anatomy
Patellar Tendonitis Clinical Evaluation
- Activity related anterior knee pain with focal patellar-tendon tenderness. Marked tenderness in the insertion of the infrapatellar tendon at the inferior pole of the patella. Pain may be exacerbated by knee extension.
- Associated with jumping sports, basketball, volleyball.
Patellar Tendonitis Xray / Diagnositc Tests
- A/P and Lateralviews of the knee generally normal.
- MRI: reveals inflammatory changes in the patellar tendon.
Patellar Tendonitis Classification / Treatment
- Activity modification, physical therapy, stretching, Infrapatellar Straps, ice, NSAIDs, stretching, strengthening, extracorporeal shock wave therapy (Peers KH, Clin J Sport Med 2003;13:79).
- Platelet-rich plasma injection. (Kon E, Injury 2009; 40:598)
- Surgical treatment: Consider debridement and repair for severe tendinopathy in chronic cases which have failed to respond to non-operative treatment. (Shelbourne KD, AJSM 2006;34:1141).
Patellar Tendonitis Associated Injuries / Differential Diagnosis
Patellar Tendonitis Complications
Patellar Tendonitis Follow-up Care
Patellar Tendonitis Review References
- Warden SJ, Clin in Sports Med 2003;22
- Shelbourne KD, AJSM 2006;34:1141
- Al-Duri ZA, Am J Knee Surg 2001;14:43