Related Experiment Video
Updated: Jun 21, 2026
Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
Published on: May 26, 2023
Irreducible simultaneous dislocation of both interphalangeal joints in the little finger: a case report
Kazuo Hara1, Shigeharu Uchiyama, Hiroyuki Kato
1Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan. khara@shinshu-u.ac.jp
Abstract:
We present a case with irreducible simultaneous dislocation of both the distal interphalangeal (DIP) and proximal interphalangeal (PIP) joints in the little finger. A combination of the delay from injury to closed reduction and the entrapped flexor digitorum profundus (FDP) tendon at the PIP joint prevented closed reduction from being performed. To our knowledge, this is the first report of such a condition.
Related Concept Videos
01:09Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
01:16Muscles of the Forearm that Move the Hand and Fingers
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,...