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Related Concept Videos

Accessory Structures of the Skin: Nails01:05

Accessory Structures of the Skin: Nails

Nails are one of the important accessory structures of the skin. They are hard, protective structures that cover the dorsal surface of the distal phalanges of fingers and toes. Nails are composed of specialized keratinized cells and serve various functions, including protection, sensation, and manual dexterity.
The main components of a nail include the following.
Nail Plate: The nail plate is the visible portion of the nail that extends beyond the fingertips or toes. It is a hard, translucent...
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a short...
Muscles of the Forearm that Move the Hand and Fingers01:16

Muscles of the Forearm that Move the Hand and Fingers

The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi radialis,...
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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Related Experiment Video

Updated: Jun 23, 2026

Adult Mouse Digit Amputation and Regeneration: A Simple Model to Investigate Mammalian Blastema Formation and Intramembranous Ossification
09:17

Adult Mouse Digit Amputation and Regeneration: A Simple Model to Investigate Mammalian Blastema Formation and Intramembranous Ossification

Published on: July 12, 2019

[Macrodactyly].

F Fitoussi1, B Ilharreborde, P Jehanno

  • 1Service de chirurgie orthopédique pédiatrique, urgences main enfant, hôpital Robert-Debré, 48, boulevard Serrurier, 75019 Paris, France. franck.fitoussi@rdb.aphp.fr

Chirurgie De La Main
|May 22, 2009
PubMed
Summary
This summary is machine-generated.

Macrodactyly is a rare congenital condition causing finger enlargement, either as part of a syndrome or as isolated true macrodactyly. Treatment is challenging, involving surgery to control growth, reduce size, or amputation in severe cases.

Related Experiment Videos

Last Updated: Jun 23, 2026

Adult Mouse Digit Amputation and Regeneration: A Simple Model to Investigate Mammalian Blastema Formation and Intramembranous Ossification
09:17

Adult Mouse Digit Amputation and Regeneration: A Simple Model to Investigate Mammalian Blastema Formation and Intramembranous Ossification

Published on: July 12, 2019

Area of Science:

  • Congenital Malformations
  • Pediatric Orthopedics
  • Plastic Surgery

Context:

  • Congenital finger enlargement presents as two types: syndromic/tumor-related or isolated true macrodactyly.
  • True macrodactyly is a rare congenital anomaly characterized by excessive fat, often on the palmar side.
  • Etiology remains unknown, but it can follow nerve territories, particularly the median nerve.

Purpose:

  • To describe the classification, characteristics, and management of macrodactyly.
  • To outline the challenges and goals of operative treatments for macrodactyly.
  • To inform about the potential need for multiple surgeries and functional limitations.

Summary:

  • Macrodactyly involves congenital finger enlargement, categorized as syndromic or true macrodactyly.
  • Nerve territory-oriented macrodactyly, often median nerve-related, can be static or progressive.
  • Surgical options include epiphysiodesis, tissue resection, osteotomies, arthrodesis, and amputation, with varying functional outcomes.

Impact:

  • Provides a comprehensive overview of a rare congenital condition.
  • Highlights the complexities of surgical management and parental counseling.
  • Aids clinicians in understanding and treating macrodactyly, improving patient care.