The use of radiation to discourage ectopic bone. A nine-year study in surgery about the hip

M B Coventry, P W Scanlon
Journal of Bone and Joint Surgery. American Volume 1981, 63 (2): 201-8
Patients who had total hip arthroplasty were categorized according to the risk of development of ectopic bone. Radiation therapy was administered after operation to those considered to be at high risk of formation of ectopic bone. The dosage used was 2,000 rads given in ten fractions (875 rets). Forty-eight hips in forty-two patients were treated from 1970 to 1977. Massive formation of ectopic bone did not occur in any hip when the radiation was given relatively early after operation. Thus, we believe that radiation aids in the prevention of formation of ectopic bone. Radiation was found to be of doubtful value, however, hence the ectopic bone was visible on radiography.

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