Thompson-Epstein Classification (Posterior Hip Dislocation)
The Thompson-Epstein classification of posterior hip dislocations, by the associated acetabular or femoral-head fracture, types I/II/III/IV/V.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Thompson-Epstein type
- II - single large posterior rim fracture
Result: Thompson-Epstein type II: a dislocation with a single large fracture of the posterior acetabular rim.
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What the result means
- Type I
- Dislocation with no fracture or only a minor fracture of the posterior acetabular rim.
- Type II
- Dislocation with a single large fracture of the posterior acetabular rim.
- Type III
- Dislocation with a comminuted fracture of the posterior acetabular rim.
- Type IV
- Dislocation with a fracture of the acetabular rim and floor.
- Type V
- Dislocation with a fracture of the femoral head.
What you enter
- Thompson-Epstein type
How this is calculated
Thompson VP, Epstein HC. Traumatic dislocation of the hip: a survey of two hundred and four cases covering a period of twenty-one years. J Bone Joint Surg Am. 1951;33-A(3):746-778. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.