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An accurate knowledge of the relationship between the neck and the epiphyseal plate at the end of growth is important for biomechanical investigations of femoral neck remodelling during childhood. Statistical data about the position of the epiphyseal femoral cartilage in relation to the neck axis at the end of the growth, are rare in the literature. As the trace of the epiphysis can be observed on a CT scan view of an adult hip, cadaver femurs were investigated to study this relationship and to avoid irradiation of children. The mean anteversion angle of the epiphyseal line towards the patient's coronal plane is 2.3 degrees. The plate is retroverted in an average of 8.2 degrees in relation to the neck axis and is related to neck anteversion. The more the neck is anteverted, the more the plate is retroverted.

The chinese forearm flap is vascularized by the radial artery. It can be used as an island transplant or as a free flap. The medial plantar island flap has also been called chinese flap. Advantages and disadvantages of these flaps are discussed in an attempt to summarize their indications and contraindications.

In order to evaluate the estraosseous temperature variations during polymerization of acrylic cement being used in hip arthroplasty, measurements were taken on the anterior aspect of the upper part of the femur and also in the ipsilateral iliac vein. No variations were observed in the blood stream. On the external surface of the upper femur, the greatest variations were of the order of 3 degrees C. The significance of these findings is discussed.