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Related Concept Videos

Muscles of the Abdomen01:21

Muscles of the Abdomen

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The abdominal wall encircles the abdominal cavity, providing flexible protection and shielding the internal organs from harm. It is bordered at the top by the xiphoid process and costal margins, at the back by the vertebral column, and at the bottom by the pelvic bones and inguinal ligament. The abdominal wall is divided into two regions — the anterolateral and posterior regions.
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and...
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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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Flail Chest-I01:24

Flail Chest-I

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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.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
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Muscles of the Shoulder01:23

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The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
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Muscles that Move the Leg01:23

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The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
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Related Experiment Video

Updated: Mar 13, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

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Posterior Wall Fracture-Dislocation With Traumatic Abductor Avulsion.

Ryan Urchek, Eric Miller

    Orthopedics
    |October 14, 2016
    PubMed
    Summary

    This case report details a rare posterior hip dislocation with acetabulum fracture and complete hip abductor tendon avulsion. Early repair improved function, but later surgery was needed for the extensive soft tissue injury.

    Area of Science:

    • Orthopedic Surgery
    • Traumatology
    • Hip Biomechanics

    Background:

    • Posterior hip dislocations typically involve posterior wall fractures, capsular injury, and muscular strain.
    • Acetabular fractures require careful management due to the hip joint's complex biomechanics.
    • Hip abductor tendon injuries can significantly impair lower extremity function.

    Observation:

    • A unique case of posterior wall acetabulum fracture-dislocation with complete hip abductor tendon and capsular avulsion from the femur is presented.
    • The patient presented with hip instability attributed to both the bony fragment and extensive soft tissue damage.
    • Initial surgical repair provided temporary functional improvement.

    Findings:

    • The extensive soft tissue injury, specifically the complete hip abductor tendon avulsion, was the primary cause of persistent hip instability.

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    Pseudofracture: An Acute Peripheral Tissue Trauma Model
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    Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
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  • A secondary surgical intervention was necessary to address the hip abductor tendon avulsion.
  • This specific combination of injuries represents a novel presentation in orthopedic literature.

    • Implications:

    • This case highlights the critical role of soft tissues, particularly hip abductor tendons, in hip joint stability following traumatic dislocation and fracture.
    • Accurate diagnosis and management of associated soft tissue injuries are crucial for optimal patient outcomes in acetabular fracture-dislocations.
    • Further research into the biomechanical consequences and optimal surgical strategies for such complex injuries is warranted.