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Tibiotalar dislocation without concomitant fracture in the surrounding bones is a rare injury. We report one of them presenting unreduced after a 10 month interval. A 23 y/o female presented to our clinic 10 months after Bam earthquake, during which she had sustained an anterior tibiotalar dislocation without any associated fracture. Open reduction was tried two times, but both attempts were unsuccessful because of the very poor quality of bone. Although ankle dislocation has been reported to be associated with good prognosis, it was not the case with our late presenting patient.

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Osteoid osteoma is benign bone tumor, in which talus bone involvement is rare. This case was a 17 year old man with a right ankle pain and reduced range of motion since one year ago. Following clinical evaluation and radiological studies (X-ray, CT scan, and MRI), a bone tumor was detected in the talus with a possible diagnosis of Osteoid osteoma. The patient was operated with ankle anterior approach and the tumor was resected from the site. The patient was discharged after two days. The patient's pain was eliminated after surgery. Ankle movements are back after two months. Due to the rare nature of the disease and clinical diagnostic problems and its unusual radiographic manifestations, osteoid osteoma in chronic ankle pain in young patients, is included in the list of differential diagnosis.