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Related Concept Videos

Ankle Joint01:10

Ankle Joint

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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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Bones of the Lower Limb: Tibia and Fibula01:10

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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
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Structural Joints: Fibrous Joints01:03

Structural Joints: Fibrous Joints

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Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
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Fractures: Bone Repair01:27

Fractures: Bone Repair

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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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Steel Fastening Techniques01:17

Steel Fastening Techniques

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Steel sections can be joined together through various fastening techniques including riveting, bolting, and welding, each suitable for different structural requirements and conditions.
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
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Related Experiment Video

Updated: Apr 19, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
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Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

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[The Midfoot Fusion Bolt: a new perspective?].

M Wurm1, R Schuh, A Wanivenhaus

  • 1Allgemeines Krankenhaus Wien, Universitätsklinik für Orthopädie, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich, markus.wurm@meduniwien.ac.at.

Der Orthopade
|December 21, 2014
PubMed
Summary
This summary is machine-generated.

The Midfoot Fusion Bolt shows potential for midfoot Charcot reconstruction but requires adjunctive fixation for stability. Further research is needed to confirm its long-term efficacy and safety in surgical treatments.

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Area of Science:

  • Orthopedic surgery
  • Foot and ankle reconstruction
  • Diabetic foot complications

Background:

  • Optimal surgical treatment for midfoot Charcot remains undefined due to anatomical diversity.
  • Current fixation methods include screws and plates, with a new intramedullary device, the Midfoot Fusion Bolt, under investigation.
  • Limited long-term data exists for the Midfoot Fusion Bolt, necessitating evaluation of its short-term outcomes.

Purpose of the Study:

  • To assess the short-term results and complication rates of the Midfoot Fusion Bolt in midfoot Charcot reconstruction.
  • To review existing literature on surgical interventions for midfoot Charcot.
  • To evaluate patient satisfaction and expert opinions regarding the device.

Main Methods:

  • The Midfoot Fusion Bolt, a solid intramedullary screw, was implanted using antegrade or retrograde techniques in 16 patients (17 feet).
  • Data collected included body mass index (BMI), glycosylated hemoglobin (HbA1c), patient satisfaction, and complication rates.
  • Follow-up averaged 21.17 months, with analysis of fusion rates and need for secondary interventions.

Main Results:

  • An average fusion rate of 92.35% was achieved.
  • Four cases of postoperative ulceration occurred, leading to two amputations.
  • Six bolts required removal between 2009 and 2014 due to instability or complications.

Conclusions:

  • The Midfoot Fusion Bolt alone may provide insufficient stability for midfoot Charcot reconstruction.
  • Adjunctive fixation with additional screws or plates can achieve stable outcomes.
  • Further prospective studies and biomechanical testing are essential for definitive conclusions on the device's utility.