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Related Concept Videos

Development of the Limb Synovial Joints01:07

Development of the Limb Synovial Joints

Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...

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Hexapod-Assisted Clubfoot Correction Strictly Following Ponseti Principles: A Purely Biomechanical Approach.

Farhan Ali1, Mubashir M Wani2, Abdelsalam Hegazy1

  • 1Sidra Medicine, Doha, Qatar.

Foot & Ankle Specialist
|April 3, 2026
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Summary

This study shows that a Ponseti-guided hexapod brace strategy is a viable option for correcting severe clubfoot deformities when traditional casting fails. The method achieved good to excellent outcomes in children with resistant, syndromic, or neuropathic clubfoot.

Keywords:
cavovarus deformityequinusfoot surgery techniquesgradual defomity correctionhexapod external fixationnonhealing ulcer

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Area of Science:

  • Orthopedics
  • Pediatric Orthopedics
  • Reconstructive Surgery

Background:

  • Resistant, syndromic, and neuropathic clubfoot deformities pose treatment challenges.
  • Traditional Ponseti casting may be insufficient for severe cases.
  • Hexapod-assisted gradual correction offers a multiplanar alternative, but often deviates from Ponseti principles.

Purpose of the Study:

  • To assess the feasibility and early outcomes of a novel hexapod correction protocol.
  • The protocol was specifically designed to emulate Ponseti biomechanics.
  • The study focused on children with severe, resistant, syndromic, or neuropathic clubfoot.

Main Methods:

  • A retrospective review of 5 boys (mean age 7.4 years) treated with a staged hexapod protocol.
  • The protocol replicated the Ponseti CAVE sequence.
  • International Clubfoot Study Group (ICFSG) scores were used for outcome assessment (minimum 24-month follow-up).

Main Results:

  • Mean ICFSG scores improved significantly from 40.6 to 8.0.
  • Three patients achieved excellent outcomes (0-5), and two achieved good outcomes (6-15).
  • All patients achieved durable plantigrade alignment; neuropathic ulcers healed. Complications were minor.

Conclusions:

  • A Ponseti-guided hexapod strategy is feasible for severe, resistant clubfoot when casting is ineffective.
  • The method demonstrated consistent improvement in deformity correction.
  • Further prospective studies are needed to confirm long-term outcomes and indications.