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In medicine, an avulsion is an injury in which a body structure is torn off by either trauma or surgery (from the Latin avellere, meaning "to tear off"). [1] The term most commonly refers to a surface trauma where all layers of the skin have been torn away, exposing the underlying structures (i.e., subcutaneous tissue , muscle , tendons , or ...
An avulsion fracture is a bone fracture which occurs when a fragment of bone tears away from the main mass of bone as a result of physical trauma. This can occur at the ligament by the application of forces external to the body (such as a fall or pull) or at the tendon by a muscular contraction that is stronger than the forces holding the bone ...
Avulsion injury, in which a body structure is detached from its normal point of insertion, either torn away by trauma or cut by surgery; Avulsion (legal term), the sudden loss of land by the action of water; Avulsion (river), abandonment of an old river channel and the formation of a new one
Dental avulsion is the complete displacement of a tooth from its socket in alveolar bone owing to trauma, such as can be caused by a fall, road traffic accident, assault, sports, or occupational injury. [1] [2] Typically, a tooth is held in place by the periodontal ligament, which becomes torn when the tooth is knocked out. [3]
distal radius fracture with ulnar dislocation and entrapment of styloid process under annular ligament: Moore's fracture at TheFreeDictionary.com: Pipkin fracture-dislocation: G. Pipkin: posterior dislocation of hip with avulsion fracture of fragment of femoral head by the ligamentum teres: impact to the knee with the hip flexed (dashboard injury)
A degloving injury is a type of soft-tissue avulsion injury that can occur anywhere in the body. [1] Commonly affected areas include the face, scalp, trunk, limbs, and genitalia. [ 1 ] Degloving injuries are caused by shearing forces that cause the soft tissue layers to get pulled apart.
Occult osseous injuries may result from a direct blow to the bone by compressive forces of adjacent bones against one another or by traction forces during an avulsion injury. Lesions in the tibial plateau, hip, ankle, and wrist are often missed. In a tibial plateau fracture, any disruption of the posterior and anterior cortical rims of the ...
A wound is any disruption of or damage to living tissue, such as skin, mucous membranes, or organs. [1] [2] Wounds can either be the sudden result of direct trauma (mechanical, thermal, chemical), or can develop slowly over time due to underlying disease processes such as diabetes mellitus, venous/arterial insufficiency, or immunologic disease. [3]