Scaphoid fracture and avascular necrosis

Case contributed by Dr Ahmed Abd Rabou

Presentation

Wrist pain and limited movement after falling on outstretched hand 4 months ago

Patient Data

Age: 28 years old
Gender: Male
Modality: MRI

Fracture scaphoid waist associated with small sized proximal pole exhibiting low T1 signal and bright STIR signal denoting avascular necrosis. There is cystic changes of the lunate and scaphoid with thinning of radiocarpal articular cartilage suggesting osteoarthritic changes. Minimal joint effusion some of them crossed the triangular fibrocartilage.

Diagnosis: Fracture of scaphoid waist with avascular necrosis of the proximal pole and associated osteoarthritis

Case Discussion

Scaphoid fracture usually occurs due to falling on outstretched hand that lead to hyperextension of the wrist joint. The most common site of fracture is the waist which is also associated with increased risk of avascular necrosis of the proximal pole as the blood supply of the scaphoid traverses from distal to proximal.

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Case Information

rID: 24586
Case created: 29th Aug 2013
Last edited: 6th Oct 2016
Inclusion in quiz mode: Included

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