1. In addition to the three types of experimental trauma carried out upon the lower femoral epiphysis of rabbits and reported earlier, five additional types of experimental trauma have also been carried out.
2. Placing a small Vitallium nail across the epiphysis does not appear to interfere with growth of the bone.
3. Curetting the lateral portion of the periphery of the epiphyseal cartilage results in a valgus deformity and moderate shortening of the femur.
4. The elevation of a flap of bone including a portion of the epiphyseal cartilage will likewise result in some interference of activity of that portion of the epiphysis and will result in a valgus deformity with moderate shortening of the femur.
5. Placing bone wax and croton oil in a metaphysis of the femur results in shortening of the femur with an osteomyelitic reaction in the bone, but does not stimulate growth of the bone.
6. Placing bone wax and croton oil in a drill hole in the lateral condyle of the femur likewise does not stimulate growth of the epiphyseal cartilage.
7. The epiphyseal cartilage in rabbits is normally sensitive to trauma.