Background The trapeziometacarpal joint (TMCJ) is inherently unstable, relying on ligament restraint to prevent subluxation. Subluxation of the thumb in a dorsoradial direction is often observed in clinical practice, either after acute ligament injury or more commonly with osteoarthritis (OA). This subluxation follows loss of function of trapeziometacarpal ligaments that stabilise this joint, r...

The patterns of laxity of normal wrists subjected to dorsal and volar stresses were analysed. Dorsal and volar displacement tests were carried out on both wrists of 50 subjects under image-intensifier control. Lateral projections in neutral, and dorsal and volar stress positions were taken to analyse the behaviour of the carpal bones. Varying degrees of capitolunate subluxation under dorsal and...

BACKGROUNDS This paper describes a novel method in treatment of scapholunate dissociation accompanied with rotatory subluxation of the scaphoid. The idea of this method is to create a kind of axial lever that can fully reconstruct anatomical relationship between the scaphoid and the lunate, with no involvement of extrinsic ligaments, and with simultaneous restriction of pathological alignment o...

Dorsal and palmar subluxation of the distal ulna can be difficult to both diagnose and treat. Patients often present long after their initial injuries with posttraumatic arthritic changes in the distal radioulnar joint. Hemiresection interposition arthroplasty is a salvage procedure that is reliable for both pain relief and restoration of motion.

A four-year-old male Dachshund was presented with pelvic limb paresis due to intervertebral disc extrusion. The spine was surgically explored and decompressed by a bilateral mini-hemilaminectomy and intervertebral disc fenestration at T12-13, and a bilateral pediculectomy of T13. Five days post-operatively, the dog deteriorated because of T13 dorsal laminar subluxation and secondary spinal cord...