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Related Concept Videos

Bones of the Lower Limb: Tibia and Fibula01:10

Bones of the Lower Limb: Tibia and Fibula

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...
Fractures: Bone Repair01:27

Fractures: Bone Repair

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 procedure...
Ankle Joint01:10

Ankle Joint

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...
Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

Definition A diabetic foot ulcer (DFU) is a chronic, non-healing wound that develops in individuals with diabetes. It typically occurs on pressure-bearing areas such as the heel, metatarsal heads, or hallux, and carries a high risk of infection and amputation.Pathophysiology • The development of DFUs can be explained by four interconnected mechanisms: neuropathy, ischemia, infection, and impaired wound healing. • Neuropathy is the most common factor. Sensory neuropathy reduces pain perception,...

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Related Experiment Video

Updated: Jul 12, 2026

Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis
06:38

Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis

Published on: October 12, 2016

A Case of Mangled Foot With Midfoot Bone Defect.

Toshihiro Kodama1, Kaoru Sato, Hiroyuki Koshimizu

  • 1From the Department of Orthopedic Surgery, Nagano Red Cross Hospital, Nagano, Japan.

Journal of the American Academy of Orthopaedic Surgeons. Global Research & Reviews
|July 10, 2026
PubMed
Summary
This summary is machine-generated.

Reconstruction of a mangled foot with a metatarsal bone defect was successful using a foot ring-type external fixator. This innovative approach preserved foot function and arch, leading to high patient satisfaction.

Related Experiment Videos

Last Updated: Jul 12, 2026

Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis
06:38

Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis

Published on: October 12, 2016

Area of Science:

  • Orthopedic surgery
  • Trauma reconstruction

Background:

  • Mangled foot reconstruction presents challenges, requiring functional outcomes.
  • Successful reconstruction hinges on restoring foot functionality.
  • This case details reconstruction of a mangled foot with a significant metatarsal bone defect.

Purpose of the Study:

  • To present a case study on reconstructing a severely mangled foot with a metatarsal bone defect.
  • To highlight the effectiveness of a specific surgical technique in complex foot trauma.

Main Methods:

  • A patient with a Gustilo IIIC Lisfranc joint dislocation, navicular fracture, and cuneiform bone defect underwent surgical reconstruction.
  • A foot ring-type external fixator was applied to stabilize the foot in an arched position.
  • Bone defect management included an antibiotic cement spacer, autologous bone graft, and phalangeal skin flap with negative pressure wound therapy.

Main Results:

  • The reconstruction successfully addressed both the bone defect and soft tissue loss.
  • The patient achieved independent ambulation one year post-surgery.
  • The applied technique preserved the foot's arch mechanism.

Conclusions:

  • Reconstruction of a mangled Lisfranc joint fracture with a keystone bone defect is feasible.
  • A foot ring-type external fixator with arch-preserving wire positioning facilitated successful bone and soft-tissue reconstruction.
  • The presented case demonstrates a high level of patient satisfaction following complex foot trauma reconstruction.