equibrazerzkidai.blogg.se - Wrist extensor compartments

De Quervain tenosynovitis (first extensor compartment involvement only, located more distal at the radial styloid).

MRI would give excellent soft-tissue picture and diagnosis, although MRI would not be a cost- or time-effective choice ĭifferential Diagnosis.

Plain film imaging and CT will not be helpful in the diagnosis of Intersection syndrome.

Ultrasound technology has pushed musculoskeletal medicine forward in both diagnosis and treatment provided by physicians.

Intersection syndrome is a clinical diagnosis, although a musculoskeletal ultrasound can easily confirm it.

The Finkelstein’s test is a passive stretch test with ulnar abduction and flexion of the thumb.

The Finkelstein’s test resulted in uneasiness.

Pronation is typically found more uncomfortable than supination.

The two dorsal compartments cross the movements of pronation and supination, create friction resulting in the exam finding of crepitus.

Crepitus is a very common finding on the exam over the site of irritation (a finding that is specific to intersection syndrome).

Swelling over the distal forearm as there can be some cases that present with a palpable finding on exam 4 cm - 6 cm proximal to Lister's tubercle.

There is no significant difference in injury pattern found in men versus womenĮxamination/Clinical Presentation.

It is commonly seen in sporting activities such as rowing or canoeing, skiing, racquet sports, and horseback riding.

The syndrome is typically the result of repetitive extension and flexion exercises or activities.

There may also be swelling and crepitus that is palpable on the exam with wrist and/or thumb extension Epidemiology

The presentation is typically one that the patient complains of pain or tenderness over the dorsal aspect of the wrist proximal to the radial styloid. In intersection syndrome, there is tenosynovitis particularly of the second extensor compartment possibly caused by friction from the overlying first compartment tendons This intersection is at an angle of approximately 60°, approximately 4 cm proximal to Lister's tubercle (a bony protuberance on the dorsal surface of the distal radius). The musculotendinous junctions of the first extensor compartment tendons ( abductor pollicis longus and extensor pollicis brevis tendons) intersect the second extensor compartment tendons ( extensor carpi radialis longus and extensor carpi radialis brevis tendons). The intersection syndrome is a relatively uncommon disorder that is often misdiagnosed with other conditions, such as ‘ De Quervain’s tenosynovitis. The term "intersection syndrome" refers to the intersection (at an angle of around 60°) of the musculotendinous junctions of the first and second extensor compartment tendons. This is typically noted as a pain just proximal and dorsal to the radial styloid, or also noted anatomically by 4 cm - 6 cm proximal to Lister's tubercle The condition is thought to occur as a result of repetitive friction at the junction in which the tendons of the first dorsal compartment cross over the second, creating tenosynovitis. Extensor carpi ulnaris is identified in the groove in the medial aspect of the ulna.Intersection syndrome is a condition that affects the first and second compartments of the dorsal wrist extensors. Movement of the fingers identifies these tendons clearly. The fifth compartment contains the extensor digiti minimi tendon located above the radioulnar joint. The probe now moves towards the ulnar side to identify the extensor digitorum and extensor indicis tendons in the fourth compartment. Movement of the thumb helps identify these tendons within the first compartment. This compartment contains the abductor pollicis and extensor pollicis brevis tendons. The probe is moved radially to identify the first compartment of the extensor tendons. The probe is moved to identify extensor carpi radialis brevis and extensor carpi radialis longus. Movement of the thumb identifies extensor pollicis longus. Extensor pollicis longus lies on the ulnar side of the tubercle and extensor carpi radialis brevis on the radial side. Lister’s tubercle on the distal radius is identified. The patient sits, hand pronated, arm supported, with the probe placed transversely over the distal end of the radius.