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Lacerations – irregular tear-like wounds caused by some blunt trauma. Lacerations and incisions may appear linear (regular) or stellate (irregular). The term laceration is commonly misused in reference to incisions. [9] Abrasions (grazes) – superficial wounds in which the topmost layer of the skin (the epidermis) is scraped off.
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 bone).
Abrasions on elbow and lower arm. The elbow wound will produce a permanent scar. A first-degree abrasion involves only epidermal injury. A second-degree abrasion involves the epidermis as well as the dermis and may bleed slightly. A third-degree abrasion involves damage to the subcutaneous layer and the skin and is often called an avulsion.
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 ...
Closed fractures 0 Fr. C 0 - No or minor soft-tissue injury from a simple fracture due to indirect trauma I Fr. O 1 - Skin lacerated by bone fragment. No or minimal contusion to the skin Fr. C 1 - Superficial contusion or abrasion to the skin II Fr. O 2 - Skin laceration with circumferential skin or soft-tissue contusion and moderate contamination
Timing is important to wound healing. Critically, the timing of wound re-epithelialization can decide the outcome of the healing. [11] If the epithelization of tissue over a denuded area is slow, a scar will form over many weeks, or months; [12] [13] If the epithelization of a wounded area is fast, the healing will result in regeneration.
Avulsion fracture, when a fragment of bone tears away from the main mass of bone as a result of physical trauma; 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
A cerebral laceration is a type of traumatic brain injury that occurs when the tissue of the brain is mechanically cut or torn. [1] The injury is similar to a cerebral contusion ; however, according to their respective definitions, the pia - arachnoid membranes are torn over the site of injury in laceration and are not torn in contusion .