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Related Concept Videos

Flail Chest-II01:26

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Managing flail chest, a condition characterized by a segment of the chest wall moving independently from the rest of the thoracic cage, requires a comprehensive approach. It includes a thorough assessment of the patient's condition, a diagnostic evaluation to determine the extent of the injury, and the implementation of appropriate medical interventions tailored to the individual's needs.
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Flail Chest-I01:24

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Overview of Flail Chest
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
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Fractures: Bone Repair01:27

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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
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Spinal Cord Injury ll: Pathophysiology01:14

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Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
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Herniated Intervertebral Disc l: Introduction01:29

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Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
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The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
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Related Experiment Video

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Perilunate Injuries, Not Dislocated (PLIND).

Guillaume Herzberg1

  • 1Pavillon T Upper Limb Surgery, Wrist Surgery Unit, Hopital Herriot, Lyon Cedex, France.

Journal of Wrist Surgery
|January 18, 2014
PubMed
Summary

A new category of wrist injury, perilunate injury not dislocated (PLIND) lesions, has been identified. These injuries, equivalent to perilunate dislocations, may be overlooked but require prompt recognition and treatment.

Keywords:
dislocationsgreater arclesser arcperilunate dislocationsperilunate fracturewrist

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Area of Science:

  • Orthopedic Surgery
  • Hand and Wrist Surgery
  • Radiology

Background:

  • Perilunate dislocations and fracture-dislocations (PLDs-PLFDs) are significant wrist injuries.
  • Existing classifications may not fully encompass all variants, potentially leading to missed diagnoses.

Purpose of the Study:

  • To identify and describe a variant of perilunate injuries.
  • To propose the inclusion of these injuries as a "perilunate injury, not dislocated" (PLIND) lesion in a modified classification.
  • To improve recognition and understanding of these injuries.

Main Methods:

  • Retrospective review of acute perilunate injuries and displaced carpal fractures over 5 years.
  • Inclusion criteria: displaced carpal fractures with scapholunate and/or lunotriquetral dissociation, but no capitate-lunate dislocation.
  • Analysis of 11 identified PLIND lesions, with detailed presentation of 3 cases.

Main Results:

  • Eleven patients with PLIND lesions were identified.
  • These injuries represent equivalents of PLDs-PLFDs but without capitate-lunate dislocation on initial radiographs.
  • Three cases with clinical and radiological follow-up were presented.

Conclusions:

  • Perilunate injuries without capitate-lunate dislocation (PLIND lesions) exist and can be overlooked.
  • These injuries require both osseous and ligamentous repair.
  • Incorporating PLIND lesions into classifications enhances recognition, understanding, and treatment of acute and chronic perilunate injuries.