Trapeziometacarpal Joint Arthroplasty, a Salvage Technique for Failed Open Reduction Internal Fixation of the First Metacarpal.

This report describes the case of a 61-year-old man reporting a painful subluxation and instability of the first metacarpal of the right hand after surgery for a multifragment fracture-subluxation of the thumb base. The fracture (considered irreducible) had been previously treated with K-wire stabilization of the trapeziometacarpal joint and subsequent removal of the K-wires at another clinical center. We advocate the use of trapeziometacarpal arthroplasty after the failure of open reduction internal fixation of the previous articular fracture, with successful results at follow-up.

Surgical Management of the Trapezium Canal Syndrome: An Uncommon Presentation of Tenosynovitis of Flexor Carpi Radialis.

Flexor carpi radialis (FCR) tenosynovitis is a condition characterized by pain over the volar radial wrist caused by inflammation of the FCR tendon sheath. It is an uncommon and often unrecognized pathology that could be misleading from a diagnostic and therapeutic point of view. Treatment usually involves immobilization, nonsteroidal anti-inflammatory drugs, and injections.

Rayleigh-Bénard convection with thermal boundary inhomogeneities.

Rayleigh-Bénard convection with nonhomogeneous thermal boundaries (sinusoidal temperature patterns set in-phase at the top and bottom plates) is numerically studied in three- and two-dimensional domains. Two spatial convective scales occur: the one due to the self-organized clustering of plumes-which is known to appear in homogeneous conditions-and the scale induced by the boundary heterogeneities. The latter drives the convection patterning, both in 3D and 2D, when the wavelength of the perturbation is comparable with the self-organized one.

Traumatic bilateral isolated palsy of Flexor Pollicis Longus: an uncommon case report.

Introduction And Importance: Flexor Pollicis Longus (FPL) lies in the volar compartment of the forearm and is responsible for the flexion of the distal phalanx of the thumb. The innervation of FPL is provided by an isolated motor branch of the anterior interosseus nerve (AIN), a branch of the median nerve. AIN disfunction causes symptoms of exclusive motor involvement concerning the FPL muscle.

The Treatment of Chronic Ulnar Collateral Ligament of the Thumb Injury Using Extensor Pollicis Brevis: Surgical Technique.

Chronic rupture of the ulnar collateral ligament of the thumb is a complex lesion that typically results in chronic joint instability, functional limitation in pinch, and persistent pain at the metacarpophalangeal (MCP) joint of the thumb. Different surgical techniques have been proposed, including tendon graft and transpositions. In this article, we report our experience in treating chronic ulnar collateral ligament injuries using extensor pollicis brevis tendon in a Sakellarides modified technique.