TREATMENT OF INFECTION WITH DEBRIDEMENT AND RETENTION OF THE COMPONENTS FOLLOWING HIP-ARTHROPLASTY

Forty-two patients (forty-two hips) who had an infection following a h ip arthroplasty mere managed with open debridement, retention of the p rosthetic components, and antibiotic therapy. After a mean duration of follow-up of 6.3 Sears (range, 0.14 to twenty-two years), only six pa tients (14 per cent) - four of nineteen who had had an early postopera tive infection and two of four who had had an acute hematogenous infec tion - had been managed successfully. Of the remaining thirty-six pati ents, three (7 per cent of the entire group) mere being managed,vith c hronic suppression with oral administration of antibiotics and thirty- three (79 per cent of the entire group) had had a failure of treatment . AII nineteen patients who had a late chronic infection were deemed t o have had a failure of treatment. Debridement had been pet-formed at a mean of sis days (range, two to fourteen days) after the onset of sy mptoms in the patients who had been managed successfully and at a mean of twenty-three days (range, three to ninety-three days) in those for whom treatment had failed, Debridement with retention of the prosthes is is a potentially successful treatment for early postoperative infec tion or acute hematogenous infection, provided that it is performed in the first two weeks after the onset of symptoms and that the prosthes is previously had been functioning well. In our experience, this proce dure has not been successful when it has been performed more than two weeks after the onset of symptoms, Retention of the prosthesis should not be attempted in patients who have a chronic infection at the site of a hip arthroplasty as this approach universally fails.