Heterotopic ossification is the formation of new bone in an abnormal location. It is usually seen following central nervous system disorders, including spinal cord injury, traumatic brain injury, encephalitis, and burn and trauma. Heterotopic ossification in post-stroke hemiplegia is rare; the reported incidence is 0.5-1.2%. It usually occurs on the paretic side of hemiplegic patients. We present here a case of post-stroke hemiplegia with heterotopic ossification in the non-paretic limb.

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Spondyloepiphyseal dysplasia tarda with progressive arthropathy (SEDT-PA) is an autosomal recessively inherited skeletal dysplasia. We present four patients (three patients-a brother and a sister and their third cousin-in a family and one patient in another family) with SEDT-PA. All patients had short stature and stubby hands and feet. Their radiographs revealed typical changes for SEDT-PA including platyspondyly, severe osteopenia and dysplastic bone changes. Physical therapy and exercises were performed to all patients in order to decrease in pain and increase or at least maintain joint motion and mobility. Symptomatic relief was achieved in all patients for about a couple of months. The major clinical importance of this rather rare disorder is its similarity to juvenile idiopathic arthritis which has rather different treatment protocol.

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