Pain in midportion achilles tendon medially could be a Plantaris muscle rupture. Eccentric exercises for Achilles tendonitis will not help.
Br J Sports Med. 2017 Feb 24. pii: bjsports-2016-097360. doi:
10.1136/bjsports-2016-097360. [Epub ahead of print]
Persistent pain in the Achilles mid-portion? Consider the plantaris tendon as a
possible culprit!
Alfredson H
https://www.ncbi.nlm.nih.gov/pubmed/28235758
- Pain is in the MEDIAL side of achilles tendon belly
- Pain worse with running uphill
- eccentric heel drops do not help and any worsening with such suggests this is the problem
- Ultrasound might identify it
- restricting pronation helps
- Injection of local WITHOUT steroid might give long lasting relief
- Surgical removal is a last resort but effective