Tipi di infortuni al polso spiegati: dalle lesioni del TFCC al tunnel carpale
Learn about common polso conditions including TFCC lesione, scaphoid frattura, carpal tunnel syndrome, de Quervain's, and ganglion cysts.
The polso is one of the most complex joints in the body, consisting of eight carpal bones, numerous legamento, the triangular fibrocartilage complex (TFCC), and multiple tendine passing through tight compartments. This complexity makes the polso vulnerable to a wide range of injuries from both trauma and overuse. Understanding common polso conditions helps paziente recognize sintomo early and seek appropriate trattamento.
Rottura del TFCC
The triangular fibrocartilage complex is a cartilagine and legamento structure on the ulnar (pinky) side of the polso that cushions the articolazione and stabilizes the distal radioulnar articolazione. TFCC lesione cause ulnar-sided polso dolore, clicking, and weakness with gripping or twisting. Traumatic lesione from falls or sports may heal with immobilization, while degenerative lesione are common with aging. RM or MR arthrogram is the primary diagnostic tool. Learn how to identify TFCC lesione on imaging in our polso RM reading guide.
Frattura dello scafoide
The most commonly fractured carpal osso, the scaphoid is vulnerable during falls on an outstretched hand. The frattura may not appear on initial radiografia, leading to delayed diagnosi. dolore in the anatomical snuffbox is the classic clinical sign. The scaphoid's unique blood supply makes nonunion and avascular necrosis real concerns. For detailed information on guarigione options, see our article on scaphoid frattura guarigione without chirurgia.
Sindrome del tunnel carpale
Carpal tunnel syndrome occurs when the median nervo is compressed as it passes through the carpal tunnel at the polso. sintomo include numbness, tingling, and dolore in the thumb, index, middle, and ring fingers, often worse at night. Causes include repetitive hand use, pregnancy, diabetes, and thyroid disorders. Mild cases respond to splinting and activity modification, while severe cases with muscolo wasting require chirurgico release. RM can show nervo gonfiore and flattening within the tunnel.
Tenosinovite di De Quervain
This condition involves infiammazione of the tendine on the thumb side of the polso, specifically the abductor pollicis longus and extensor pollicis brevis. It causes dolore with thumb movements, gripping, and polso deviation. Common in new parents from repetitive lifting and in people who perform repetitive pinching motions. trattamento includes thumb spica splinting, corticosteroid injection (highly effective with 80 percent resolution), and rarely chirurgico release of the first dorsal compartment.
Cisti gangliare
Ganglion cysts are the most common soft tissue mass in the hand and polso. They are fluid-filled sacs arising from articolazione capsules or tendine sheaths, most commonly on the dorsal (back) polso. Most ganglions are painless and may fluctuate in size. trattamento ranges from observation (many resolve spontaneously) to aspiration or chirurgico excision for symptomatic cysts. RM clearly shows the cystic nature and origin of the mass, distinguishing it from other soft tissue tumors.
Key Takeaways
- Le lesioni del TFCC causano dolore al polso sul lato ulnare e possono necessitare di artro-RM per una diagnosi accurata
- Le fratture dello scafoide possono essere occulte alla radiografia e presentano sfide di guarigione uniche a causa dell'apporto sanguigno
- La sindrome del tunnel carpale varia da lieve a grave e il trattamento dipende dal grado di compressione del nervo
- La tenosinovite di De Quervain risponde bene all'iniezione di corticosteroidi nella maggior parte dei casi
Domande frequenti
Quando dovrei fare un esame di imaging per il dolore al polso?
Seek imaging if you have polso dolore after a fall or trauma (radiografia first), persistent dolore lasting more than two weeks, clicking or locking sintomo, numbness in the fingers, or a visible lump. RM is typically the next step when radiografia are normal but sintomo persist.
Le lesioni del polso possono guarire senza chirurgia?
Many polso conditions respond to conservativo trattamento. Nondisplaced scaphoid frattura can heal with casting, mild carpal tunnel improves with splinting, TFCC lesione may heal with immobilization, and ganglion cysts often resolve spontaneously. The key is accurate diagnosi and appropriate trattamento matching.
Articoli correlati
Decodifica il tuo referto RM del polso, compresa la valutazione del TFCC, la rilevazione di fratture dello scafoide e i reperti del tunnel carpale.
Understand scaphoid frattura guarigione rates by location, cast trattamento versus chirurgico fixation, and the blood supply challenge.
Patologie correlate
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