[A peculiar tumor. Adamantinoma of the long bones. Apropos of 7 consecutive cases followed up after resection]. / Une tumeur singulière. L'adamantinome des os longs. A propos de sept cas consécutifs suivis après résection.

Seven cases of tibial adamantinoma have been reviewed. All were treated by en bloc resection and followed for one to twenty years after operation. Of five patients followed for more than three years, three have had a good result after 3, 12 and 20 years of follow-up. One patient suffered a recurrence in the soft tissues seven years after resection and remained well after thirteen years follow-up. One patient required amputation two years after resection and died from a mediastinal tumour of undetermined nature sixteen years after amputation. The two failures occurred in patients seen secondarily following recurrence after initial curettage. The tibial shaft was reconstructed in three cases by massive allografts. One of these failed because of infection but was reconstructed using autografts; one had a late fracture which united spontaneously. The third, after sound union, had to be amputated for recurrence. Two smaller resections were treated successfully by tibial and iliac autografts. Two cases were treated by free vascularised fibular transplants which united, though one suffered a late fracture which united spontaneously. Curettage, which is almost always followed by recurrence, should be rejected in favour of extensive resection. Resection is successful when done primarily but poses severe problems in reconstruction and requires a prolonged period of treatment. The small numbers in this series do not allow a judgement to be made as to the superiority of one technique over another.

[How to perform oblique-plane osteotomy]. / Comment réaliser une ostéotomie plane oblique.

Oblique plane osteotomy allows correction of associated angular and rotational deformity by a single bony section and also allows modification of the existing angle at the cervico-diaphyseal level in the femur. Exact assessment of the direction of the osteotomy and of extent of rotation are essential to success. This paper proposes a simple method by use of a table and performance is facilitated by the of Kirschner wires.

[Elements of shoulder mechanics]. / Eléments de mécanique de l'épaule.

An understanding of shoulder movement is difficult. The author has devised a schematic diagram which gives a better definition of the basic movements. It allows a simpler analysis of limitation of movement and of the relative importance of the scapulo-humeral, sterno-clavicular and acromio-clavicular joints. The role of the peri-articular muscles is stressed as motors and stabilizers. This analysis accounts for difficulties encountered in prosthetic surgery.

[Resection-arthrodesis of the knee for bone tumours (author's transl)]. / La résection-arthrodèse du genou pour tumeur.

The authors describe the technique, devised by Juvara and modified by Merle d'Aubigné of resection-arthrodesis of the knee with fixation by medullary nailing and using massive bone grafts. They report 38 cases operated on for various conditions (20 giant-cell tumours, 7 chondro-sarcoma, 6 juxta-cortical sarcoma, 3 other types of sarcoma, one desmoid fibroma, one chondroma). The best results were obtained in cases in which surgical excision had been sufficiently wide and when very thick nails were used. The use of homografts increased the rate of infection. Resections of the lower and of the femur resulted in more complications than tibial resections. In femoral lesions, the part of the tibia that is transplanted should not be turned upside-down but should be mobilised upwards to provide better bone contact. The indications are discussed and compared with those of total replacement. The authors believe that, despite the number of complications, this technique is more practicable than total knee replacement.