anglion cysts are common wrist masses and may cause median neuropathy. The great majority of volar wrist ganglia arise from the radioscaphoid or scaphotrapezial joint, with a smaller percentage originating from the pisotriquetral joint. 1,2 The car-pometacarpal joints are uncommon locations for ganglia, especially for cysts causing median nerve compression. A literature review of ganglia within...

We treated 43 patients (38 women and 5 men) with osteoarthritis of the basal joint of the thumb by non-cemented arthroplasty of the first carpometacarpal joint as described by Ledoux. The probability of a patient avoiding revision for 12 months was 62% and for 16 months 59%. The indications for revision were aseptic loosening in 83% and luxation in 17%. The surviving prostheses were reviewed cl...

Most researchers have modelled the thumb as three rigid links with connections of two universal joints (carpometacarpal joint and metacarpo-phalangeal joint), and a hinge joint (interphalangeal joint). Although this produces the required number of degrees of freedom, the resulting motion is not anatomically accurate. In this work, the thumb is modelled as a five-link manipulator with the virtua...

UNLABELLED A review of the literature was performed to design a hand exercise regimen based on biomechanical principles of the carpometacarpal (CMC) joint and the forces that act upon the joint. Sixteen biomechanical studies were included in the review: four studies developed a mathematical model of the thumb and 12 performed cadaveric dissections to study the CMC joint. Clinical application of...

BACKGROUND Musculoskeletal ultrasound has been found to be more sensitive than radiographs in detecting osteophytes. Our objective was to measure the prevalence of features of osteoarthritis (OA), in the dominant hand, knees and hips using ultrasound, within the Newcastle Thousand Families birth cohort. METHODS Participants were aged 61-63 (mean 63) years. Knee images were scored for presence...

Injury to the carpometacarpal joints is rare. The strong ligamentous attachments and carpal bone alignment readily resist displacement. To the authors' knowledge, there are no studies evaluating postoperative recovery regimens of carpometacarpal fracture dislocations. The present study describes a postoperative hand therapy regimen that used a novel carpometacarpal brace permitting early mobili...

PURPOSE/BACKGROUND This retrospective analysis focused on a comparison of long-term results in patients who underwent resection of the trapezium with subsequent arthroplasty and tendon suspension using either the abductor pollicis longus (APL) or the flexor carpi radialis (FCR) tendon. METHOD AND MATERIAL Based upon a positive history along with a clinical and radiological examination, 20 pat...