AI Article Synopsis
- Accessory ossicles are common in the ankle and foot, often showing no symptoms but can occasionally cause pain.
- When a patient has unilateral pain but bilateral accessory ossicles, it can be challenging to determine if the ossicles are the cause of the symptoms.
- In a case study, a patient with chronic ankle pain had imaging show bilateral accessory ossicles, and further scans localized the pain to the posterior subtalar joint, confirming a diagnosis of os trigonum syndrome.
Article Abstract
Accessory ossicles are widely prevalent in the ankle and foot. Although they are often asymptomatic, they can present clinically with symptoms at times. When they occur bilaterally in a patient who presents with unilateral complaints, it is clinically difficult to attribute the symptoms to the presence of these common anatomic variants. One needs specific imaging to assess the clinical relevance of the accessory ossicles, in order to tailor the treatment plan. The case presented in this article is one such example, where the patient presented with chronic unilateral ankle pain and initial radiographs revealed bilateral os trigonum and os subtibiale. He underwent a technetium-99m methyl diphosphonate (Tc-99m MDP) bone scan and single photon emission computed tomography/computed tomography (SPECT/CT). The Tc-99m MDP scan showed a focal uptake in the ankle of concern. SPECT/CT complemented the finding by exactly localizing the uptake to the posterior subtalar joint and around the os trigonum, thereby pointing to the diagnosis of os trigonum syndrome.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4564925 | PMC |
| http://dx.doi.org/10.4103/1450-1147.163257 | DOI Listing |
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