SILASTIC
ARTHROPATHY is due to foreign body reaction to silicone particles.
1. Distribution:
In the foot, the 1st metatarsophalangeal joint is the joint most commonly
involved, as it is the joint most commonly replaced.
2. Erosion pattern: The most common finding is the presence of erosion and osteolysis of bone adjacent to the implant.
3. Differential diagnosis:
The presence of a silastic implant is a clue to the correct diagnosis.
Joint | Frequency |
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1st interphalangeal | - |
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2nd - 5th interphalangeal | - | ![]() |
1st Metatarsophalangeal | + | |
2nd-5th Metatarsophalangeal | - |
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Tarsometatarsal | - |
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Chopart | - |
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Arthritides of the Foot |
Silastic Arthropathy |
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