Ulnar Dislocation of the Third Proximal Interphalangeal Joint
History: 40 year old male with finger pain. This is a case of a dislocated third proximal interphalangeal joint. See another case of a dislocated interphalangeal joint here.
Acroosteolysis Differential Diagnosis Mnemonic – PINCH FOV
This mnemonic has been commonly used to recall the differential diagnosis of acroosteolysis: P – Pycnodysostosis I – Injury (such as frost bite, burns, electrical) N – Neuropathy (such as congenital insensitivity to pain, Leprosy, diabetes, or other causes) C – Collagen vascular diseases (Scleroderma) H – Hyperparathyroidism F – Familial (Hadju-Cheyney) O – Other […]
Volar Dislocated Proximal Interphalangeal Joint
History: male with finger pain. This is a volar dislocation of the third proximal interphalangeal joint. Volar dislocations of the proximal interphalangeal joint are the least common and have the worst prognosis. In volar dislocation the central slip of the extensor digitorum is commonly disrupted along with the volar plate and collateral ligaments. Dorsal dislocation […]