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3.P.47 FIBROUS DYSPLASIA AND PAIN: INDICATION FOR TREATMENT?



Abstract

Although fibrous dysplasia is a benign bone disease, in few cases patient are suffering from severe pain of the skeletal system. The aim of this study was to evaluate the current state regarding pain of patients with fibrous dysplasia treated at our hospital.

We searched our digital database since 1990 for patients with fibrous dysplasia. Subsequent we verified the histological diagnosis by reviewing the final pathologic report. Additional we called the identified patients by phone to make an enquiry about their pain course and associated treatment. For rating pain intensity we used a numeric rating scale with a range within zero to ten.

We identified 43 patients (21 male, 22 female) with an average age at initial diagnosis of 40 years (range 10 to 72years). The mean follow up was 6 years (range 1 to 23 years). Among these 43 patients we were able to contact 33 by phone. Initial diagnosis was made due to pain in 23 cases, nearly coequal by coincidental examination in 20 cases, for fracture in two cases and for local swelling and bone deformity each time in two cases. Thirty-six patients revealed monostotic and seven patients polyostotic involvement. The following locations were found: three times craniofacial, four times within the spine, eight times at the upper extremity, ten times in the pelvis and 31 times at the lower limb. Two patients were suffering additionally from Mazabraud Syndrome. Actual values at the numeric rating scale regarding pain ranged from 0 to 9 with a mean value of 1. Specific in the polyostotic group we found an average value of 3 and three of seven patients stated a value greater than 5 for persistent pain. Five patients with polyostotic involvement were treated with bisphosphonat for pain control with good response.

It is remarkable that patients with polyostotic involvement have marked higher values for pain intensity at the numeric rating scale. So therefore we should have a closer look for potential reasons explaining that fact. In accordance with previous published studies we found that pain decreased by intermittent intravenous application of bisphosphonates.

Correspondence should be addressed to Professor Stefan Bielack, Olgahospital, Klinikum Stuttgart, Bismarkstrasse 8, D-70176 Stuttgart, Germany. Email: s.bielack@klinikum_stuttgart.de