Because the CORA was at the ankle joint and the supramalleolar corrective osteotomy was proximal to it, a translation of the distal tibia was performed with the application of a juxta-articular hinge (Fig. 3).
After the wedge was removed, the osteotomy was closed with simultaneous translation (enabled by the juxta-articular hinge) and was fixed by connecting the distal ring to the middle one, resulting in parallel rings.
Articular fractures that have a hinge may be treated with closed reduction and percutaneous pinning.
Factors associated with poor outcomes are: the degree of varus malreduction, length of the initial metaphyseal hinge attached to the articular fragment and its correlation with osteonecrosis of the humeral head and screw protrusion through the humeral head.
The various movements of the wings, especially in insects that flex the wings horizontally over the back when at rest, demand a more complicated articular structure at the wing base than a mere hinge of the wing with the body.
At least one type of incongruency of the articular surface occurred in eight of 18 ankles, including anterior hinging in one ankle, medial or lateral lift off in four ankles, and excessive axial rotation in five ankles.
Steinmann pins through the joint damage articular cartilage, external fixation can result in pin tract problems, and hinged external devices can be difficult to apply and uncomfortable for patients.
Movement of the hip joint can be achieved by the addition of an appropriately orientated hinge within the fixator, thus incorporating principles of motion derived from Salter's work on articular cartilage [8].
Fixed uniaxial hinge prostheses can give stability to the diseased knee; however, excess stress applied to the bone and articular surfaces may lead to early osteolysis and loosening of the components.
Goodbye hinge, goodbye foot.
