Search results
20 lis 2022 · Images. Extensor Tendon Injuries are traumatic injuries to the extensor tendons that can be caused by laceration, trauma, or overuse. Diagnosis is made clinically by physical examination and performing various provocative tests depending on the location of the injury.
- Topic
Images. Summary. Mallet Finger is a finger deformity caused...
- Topic
(3a) On a sagittal T1-weighted image through the mid-portion of the long finger, there is a 7mm defect involving the distal portion of the extensor digitorum communis tendon (arrow). Intermediate signal intensity material fills the defect.
Courtesy of Primal Pictures. An extensor tendon injury is a cut or tear to one of the extensor tendons. Due to this injury, there is an inability to fully and forcefully extend the wrist and/or fingers. Clinically Relevant Anatomy. Extensor tendons of the hand lie very superficially and the soft tissue covering the tendons is very thin. [1] .
Extensor tendons are just under the skin. They lie next to the bone on the back of the hands and fingers and straighten the wrist, fingers and thumb (Figure 1). They can be injured by a minor cut or jamming a finger, which may cause the thin tendons to rip from their attachment to bone.
A mallet finger (Figure 1) results from a separation of the extensor digitorum from its insertion on the distal phalanx. This separation by tearing away (technically, an "avulsion") results from hyperflexion of the distal interphalangeal (DIP) joint. A commonly seen mechanism of injury is a blow against the tip of the finger by a ball being caught.
31 sie 2017 · This article reviews the normal anatomy of the extensor tendons of the wrist as well as the clinical presentation and MRI appearances of common tendon abnormalities, such as tears, tenosynovitis, intersection syndromes, and associated or predisposing osseous findings. Treatment options are also discussed.
22 paź 2023 · Extensor tendon injuries are very common - owing to their superficial location on the dorsum of the hand and wrist. Inappropriate management of these injuries can result in permanent deformity and loss of function.
