Locking of the metacarpophalangeal joints has been occasionally reported in older adults, but reports of this problem are rare in younger individuals. We report 8 young adult patients with a metacarpophalangeal joint locked in 90° flexion after minor trauma. The cases included 6 little fingers and 2 thumbs in 1 male and 7 female patients aged 16 to 39 years. All were easily reduced closed. We postulate the mechanism of injury.
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http://dx.doi.org/10.1016/j.jhsa.2011.06.021 | DOI Listing |
J Hand Microsurg
December 2024
Department of Orthopaedic Surgery, University of Illinois, Chicago 835 South Wolcott Avenue, Chicago, IL, 60612, USA.
This review provides a detailed analysis of the anatomy, mechanisms, and management of ligamentous and capsular injuries in metacarpophalangeal joints (MCPJs). The MCPJ is a condyloid joint with unique anatomical features, including a sagittal cam effect that enhances stability in flexion. Ligaments, tendons, and joint capsules contribute to the overall stability and mobility of MCPJs.
View Article and Find Full Text PDFCureus
November 2024
Orthopedic Surgery, Eisenhower Health, Rancho Mirage, USA.
We present a case of a thumb metacarpophalangeal (MCP) joint dislocation complicated by the interposition of the sesamoid bones. This case highlights a clinical scenario referred to as the "locked thumb" syndrome, in which a first-digit MCP dislocation is complicated by an entrapped anatomical structure that hinders closed reduction. In this case, the thumb sesamoid bones became lodged at the base of the dislocated proximal phalanx.
View Article and Find Full Text PDFSemin Musculoskelet Radiol
December 2024
Service d'imagerie médicale, CHU de Toulouse-Purpan, Bâtiment Pierre Paul Riquet, Place du Docteur Baylac, Toulouse, France.
The joints of the fingers play an important role in prehension. They must accomplish both great mobility in the sagittal plane to allow the fingers to roll up and great stability to ensure the grip is both precise and firm. The collateral ligaments and palmar plates are the main passive stabilizing structures between the interphalangeal (IP) and metacarpophalangeal (MCP) joints.
View Article and Find Full Text PDFJ Hand Microsurg
June 2024
Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan.
Background: Both arthrodesis and trapeziectomy with ligament reconstruction and tendon interposition (T + LRTI) arthroplasty are reliable surgical procedures for thumb carpometacarpal (CMC) osteoarthritis. Here, we compared surgical outcomes between arthrodesis and T + LRTI for female workers aged over 40 years with thumb CMC osteoarthritis to determine an optimal procedure.
Patients And Methods: Fourteen thumbs of 13 patients who underwent arthrodesis with locking plates and 11 thumbs of 10 patients who underwent T + LRTI and were followed up for at least 12 months were retrospectively analyzed.
J Orthop Case Rep
March 2024
Department of Orthopedic Surgery, Salmaniya Medical Complex, Manama, Bahrain.
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