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Related Concept Videos

Ankle Joint01:10

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The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
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The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
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Related Experiment Video

Updated: Jul 1, 2025

A Mouse Model of Ankle-Subtalar Complex Joint Instability
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The internal joint stabilizer for elbow instability: current concepts.

Angelo De Crescenzo1, Raffaele Garofalo1, Luigi Adriano Pederzini2

  • 1Ente Ecclesiastico Ospedale "F. Miulli", Department of Orthopaedic and Traumatology Surgery, Shoulder and Elbow Unit, Acquaviva delle Fonti, Bari, 70021, Italy.

Journal of ISAKOS : Joint Disorders & Orthopaedic Sports Medicine
|March 10, 2024
PubMed
Summary
This summary is machine-generated.

The internal joint stabilizer (IJS) offers a more comfortable solution for elbow instability, maintaining joint reduction and motion with fewer complications than external fixators. Device removal timing requires further standardization.

Keywords:
Elbow instabilityInternal joint stabiliserResidual elbow instability

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Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Sports medicine

Background:

  • Managing residual elbow instability after acute or chronic injuries presents significant challenges.
  • Hinged external fixators offer joint stabilization and early motion but have drawbacks like bulkiness and pin track complications.

Purpose of the Study:

  • To review the literature on the outcomes of the internal joint stabilizer (IJS) for elbow instability.
  • To evaluate the efficacy of the IJS in maintaining radiographic joint reduction, range of motion, and its complication profile.

Main Methods:

  • Literature review of studies reporting outcomes with the internal joint stabilizer (IJS).
  • Analysis focused on maintained radiographic joint reduction, range of motion, and complications.
  • Comparison of IJS outcomes with existing treatment options.

Main Results:

  • The internal joint stabilizer (IJS) demonstrates consistent and satisfactory results, attributed to easier axis of rotation recreation and a reduced hinge lever arm.
  • Internal joint stabilization offers improved patient comfort compared to external devices.
  • Maintained radiographic joint reduction and favorable range of motion have been observed with the IJS.

Conclusions:

  • The internal joint stabilizer (IJS) presents a promising internal solution for elbow instability, offering improved comfort and outcomes.
  • Further research is needed to standardize the timing for the necessary second surgery for device removal.