Treatment of Benign Bone and Joint Tumors and TumorLike Diseases Using Alloplasty and Collagen Containing Material (Clinical and Experimental Study)

Purpose . Improvement of surgical treatment results in patients with benign bone and joint tumors and tumor-like diseases. Materials and methods. Evaluation of the efficacy of plastic collagen containing material for bone defect plasty was performed in 58 Chinchilla rabbits (3-4 kg). In animals from study group the bone defect was filled with collost. Histological examination of the samples was performed in 14, 30, 60 and 90 days after operation. During the period from 2007 to 2015 ninety eight patients, aged 14-75 years, with benign bone and joint tumors and tumor-like diseases were operated on. In all cases postresection defect (1-50 см_) plasty was performed by the proposed combined method that included the use of frozen allograft and collost. During subsequent follow up the potentiality of pathologic process relapse was determined as well as the dynamics of bone structure restoration, extremity function and bone anatomic shape were assessed. Results. Pathomorphologic picture of experimental samples showed that collast accelerated the bone regenerate maturity in the place of a defect. In 1 year after surgery 74 patients (75%) showed good results - in 8 (11.2%), satisfactory - in 62 (84.1%), poor - in 3 (4.7%) cases and in 3 years after operation (57 patients) - 28 (49.1%), 28 (49.1%) and 1 (1.7%) case respectively. Examination of 56 patients (57.1%) in 5 years after intervention revealed good results in 48 (85.4%) and poor - in 8 (14.6%) cases. Conclusion. Study results allow recommending the proposed method of plasty using the allograft and collost for the substitution of vast postresection defects in patients with benign bone and joint tumors and tumor-like diseases.