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We offer our personal experience of the use of massive bone allografts after tumour resection. We demonstrate the long-term results from 71 patients (72 allografts) operated on between 1961 and 1990. The long-term survival rate in osteoarticular and intercalary grafts is around 60%. Fractures of the graft can be salvaged in most cases. Infection leads to the removal of the graft in almost all cases. Factors influencing the survival, remodelling and complications of the grafts are discussed. The regime of cryopreservation, fixation and loading of the graft influence these factors, as do the use of autologous bone chips around the allograft-host junction and the application of chemotherapy or radiation. Fracture of the graft can be salvaged in most cases, as opposed to infection which remains the most severe complication and can occur at any time. Even with the improvement of tumour endoprostheses, the use of allografts remains an option, especially in young patients. Résumé Les auteurs rapportent leur expérience de l'utilisation des allogreffes massives après résection tumorale.Les résultats à long terme de 71 patients (73 allogreffes) opérés entre 1961 et 1990 sont rapportés avec un taux de survie dans les greffes articulaires et intercalaires voisin de 60%. Les fractures de greffes peuvent être rattrapées dans de nombreux cas, mais l'infection conduit à retirer la greffe dans la plupart des cas. Les facteurs influençant le remodelage et les complications des allogreffes sont discutés. Le régime de cryopréservation, la fixation et la remise en contrainte des greffes influencent ces facteurs ainsi que la disposition de lamelles d'autogreffe à la jonction hôte-allogreffe et l'aexistence de radio ou chimiothérapie. La rupture de la greffe peut être récupérée dans la plupart des cas, contrairement à l'infection qui demeure la complication la plus grave qui peut se produire à tout moment. Même avec le développement des prothèses massives pour tumeur l'utilisation des allogreffes reste une option interessante spécialement chez les patients jeunes.

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It is important to recognize that when the female patient presents with enchondromatosis and a large unilateral multilocular-solid ovarian mass, the specific diagnosis of granulosa cell tumor can be made with high accuracy.

In patients with malignant tumors in the region of the shoulder, radical resection can avoid amputation in most instances. To improve the function of the arm, endoprosthetic replacement of the defect is desirable. A three-component endoprosthesis made of a bioceramic material (aluminium oxide) was designed, implanted without bone cement. Fast anchorage to bone is achieved by using a conical sleeve, fixed upon the previously conically reamed humerus shaft. A stable primary fit is always feasible. Subsequent bone in growth into grooves inside the conical sleeve provides a permanent anchorage of the endoprosthesis. The authors experiences are based on implantations of 38 endoprostheses. The original diseases were primary malignant bone tumors in 19 patients, one case of "solitary" plasmocytoma and metastases into the proximal humerus in 16 patients. In two women, resection was made because of posttraumatic subcapital humeral pseudarthrosis. The follow-up study includes only those 27 cases operated on at least one year ago. 12 of the 14 patients with primary tumors have been surviving for 12-55 months (range 27.4) without signs of metastases or recurrent disease. Seven patients with metastases died of their original diseases after 7.7 months on the average. Owing to extensive resection of the shoulder musculature the mobility in the shoulder joint is considerably reduced. All the patients have good movement of the elbow joint and free function of the hand.