Heterotopic ossification of the hip after spinal cord injury.
OBJECTIVE
To analyse the risk factors of heterotopic ossification after spinal cord injury.


METHODS
Of 104 patients with spinal cord injury, 47 (45.2%) were complicated by heterotopic ossification of the hip. These patients with heterotopic ossification were compared with 57 patients without heterotopic ossification.


RESULTS
Statistical analysis showed that complete paraplegia, spasticity and pressure sore were significantly (P < 0.05) or highly significantly (P < 0.01) related to heterotopic ossification formation. The coexistence of two or three of these factors in the paraplegic patients was found to significantly (P < 0.01) enhance the risk of heterotopic ossification formation.


CONCLUSIONS
When the spinal cord injured patients have single or multiple risk factors, they should be predicted for susceptibility of heterotopic ossification.
Department of Orthopaedics, Changzheng Hospital, Shanghai 200003, China.
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D000328:Adult; D000368:Aged; D005260:Female; D006615:Hip / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000209:etiology*; D012189:Retrospective Studies; D013119:Spinal Cord Injuries / Q000150:complications*