Try it
Orthopaedics · Hand injuries: Stener lesion
Sample itemExamination of a thumb after a ski-pole injury shows complete ulnar collateral ligament rupture with a tender palpable lump proximal to the MCP joint. Ultrasound shows the ligament lying superficial to the adductor aponeurosis. What is the implication?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. A Stener lesion, so the ligament cannot heal and surgical repair is needed
In a Stener lesion the torn ligament is displaced proximally and the adductor pollicis aponeurosis lies between it and its bony insertion. The ligament cannot reattach, so conservative treatment fails and surgical repair is required. A palpable tender mass at the metacarpal head is the clue.
Option by option
A. A Bennett fracture, so closed reduction and percutaneous pinning is needed
A Bennett fracture is an intra-articular fracture of the first metacarpal base and not a ligament interposition.
B. A trigger thumb, so a steroid injection is the treatment
Trigger thumb is a flexor tendon sheath problem and does not follow an acute injury.
C. A Stener lesion, so the ligament cannot heal and surgical repair is needed (correct)
Correct. Interposed adductor aponeurosis prevents healing, so surgery is indicated.
D. A sprain, so a thumb spica cast for 3 weeks is sufficient
A simple partial sprain would heal in a cast, but a displaced complete tear with interposition would not.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More Orthopaedics questions
- Upper limb fracturesWhich complication is characteristic of a fracture through the waist of the scaphoid?
- Fractures in childrenA child with a displaced supracondylar fracture of the humerus develops a painful, pale…
- Bone tumoursA teenager has knee pain and a radiograph around the distal femur showing a sunburst per…
- HipA positive Trendelenburg sign is due to weakness of the gluteus medius and minimus. Whic…