The carpal tunnel is an osteofibrous canal situated in the volar wrist. The boundaries are the carpal bones and the flexor retinaculum. In addition to the medial nerve, the carpal tunnel contains nine tendons: the flexor pollicis longus, the four flexor digitorum superficialis and the four flexor digitorum profundus. Ultrasound (US) study of the carpal tunnel generally involves short-axis imaging of the tendons, and in the presence of disease, long-axis imaging and dynamic maneuvers are added. There are numerous reports of anatomical variants of the wrist involving vessels, nerves, tendons and muscles, and they can all be studied by US. Some are particularly relevant from a clinical point of view and will therefore be accurately described. The anatomy is complex, and the US operator should therefore be thoroughly familiar with the normal anatomy as well as the anatomical variants that may have a role in the pathogenesis of carpal tunnel syndrome or influence treatment.
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http://dx.doi.org/10.1016/j.jus.2011.01.006 | DOI Listing |
Circ J
January 2025
Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine.
Background: Transthyretin amyloid cardiomyopathy (ATTR-CM) is an under-recognized cause of heart failure (HF) in older adults. Delayed ATTR-CM diagnosis may result in more advanced symptoms. This study describes the journey of Japanese patients with ATTR-CM.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, Republic of Korea.
Objective: Cubital tunnel syndrome is a common peripheral neuropathy of the upper extremity. Anterior transposition of the ulnar nerve is an established surgical treatment option for this condition. This study aimed to introduce a novel musculofascial lengthening technique that uses only a portion of the flexor-pronator muscle mass for submuscular anterior transposition of the ulnar nerve and investigate its clinical outcomes.
View Article and Find Full Text PDFOrthopadie (Heidelb)
January 2025
Klinik für Handchirurgie und Orthopädie, Spital Langenthal, Spital Region Oberaargau SRO AG, Langenthal, Schweiz.
Pain around the first ray of the hand, particularly in the thumb area, is a frequent clinical problem that can have various causes. This article explores the most important differential diagnoses, including thumb carpometacarpal (CMC-I) osteoarthritis (rhizarthrosis), de Quervain's stenosing tenosynovitis, carpal tunnel syndrome and Wartenberg's syndrome. A detailed medical history, targeted clinical examination and if necessary the use of modern imaging techniques are crucial for making the diagnosis.
View Article and Find Full Text PDFEur J Neurol
February 2025
Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel.
Background: Hereditary transthyretin (ATTRv) amyloidosis is a rare, adult-onset autosomal-dominant disorder caused by pathogenic variants in the transthyretin (TTR) gene. Data about relevant variants in specific populations and typical initial manifestations may facilitate early diagnosis and treatment. We here describe the genetic landscape of ATTRv amyloidosis in Israel.
View Article and Find Full Text PDFJ Hand Microsurg
January 2025
OrthoCarolina Hand Center, Charlotte, NC, USA.
Background: We sought to determine the diagnostic utility of the flexion-compression (F-C) test for carpal tunnel syndrome (CTS). Using electrodiagnostic testing as the gold standard, we hypothesized that the F-C test would be a better diagnostic test for CTS as compared to the wrist flexion (Phalen's) or palmar compression (Durkan's) tests alone.
Methods: We studied patients who presented with and without CTS symptoms, designated as study and control group patients, respectively.
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