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Accessory Bone Pain
Aka: Accessory Bone Pain, Painful Accessory Bones, Os Trigonum Syndrome, Os Trigonum, Accessory Tarsal Navicular
- Epidemiology
- Affects 10% of population
- Anatomy
- Os Trigonum (Variant present in 14-25%)
- Adjacent to the Talus posterior margin
- Accessory Tarsal Navicular (Variant present in 4-14%)
- Adjacent to medial and posterior Tarsal Navicular margin
- Mechanism
- Jumping activities
- Ballet participation
- Signs
- Stieda's process
- Pain on extreme plantar flexion
- Radiology: Foot XRay
- Compare with XRay of opposite foot