[The stiffness of different sections of the cartilaginous surface of the femur head].

As a result of investigations on microstiffness of the cartilagenous covering of the human femoral bone head, normal (20), different values of microstiffness have been defined in various zones, depending on their functional load and thickness of the cartilage. The data obtained can serve for construction of subtotal endoprostheses of the coxal joint.