Case study: Pes anserinus bursitis – Injection
A 35-year-old man, an IT professional, presented with medial right knee pain for three months. The pain was aggravated by driving his car. The patient reported no history of trauma or prior instances of knee pain.
Physical examination
- Medial knee pain
- No swelling, redness, or tenderness
Ultrasound findings
- Fluid collection underneath the pes anserinus complex, in the pes anserinus bursa
Sagittal view of the pes anserinus complex showing a fluid collection in the bursa.
Coronal view of the pes anserinus complex showing a fluid collection in the bursa.
- Distal patellar tendinopathy
Ultrasonography of the patellar tendon showing distal tendinopathy.
Diagnosis
The patient was diagnosed with pes anserinus bursitis and patellar tendinopathy. Pes anserinus bursitis, also known as intertendinous bursitis, is an inflammatory condition affecting the bursa located on the medial aspect of the knee, below the medial joint line between the pes anserinus tendons. This pathology typically develops gradually and can be triggered by repetitive stress or trauma. On the other hand, patellar tendinopathy is characterized by anterior knee pain concentrated in the lower region of the patella. The pain is exacerbated by activities that exert strain on the knee extensor muscles.
To read more about the treatment, patient outcome, and other case studies, download the most practical app on ultrasound-guided chronic pain blocks for the management of chronic pain HERE.
