PubMed · 21582
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L Mannerfelt. 1977. [The Swanson prostheses].. https://pubmed.ncbi.nlm.nih.gov/21582/
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The relative value of three pulleys in the thumb has been evaluated by serial resections and subsequent measurement of flexor pollicis longus tendon excursion at the level of the forearm. The metacarpophalangeal pulley appears to be the most important and should be preserved or reconstructed if normal tendon function is to result.
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A review of the English-language literature pertaining to complications associated with Swanson Silastic (Dow Corning, Midland, MI) finger implants was performed. The review focused on seven broad categories of complications: synovitis, lymphadenopathy, bone change, implant fracture, implant loosening, infection, and implant removal. Outcome data on 15,556 small joint implants were identified in 70 pertinent articles. The prevalence rates of complications associated with finger implants were all very low. Implant fracture and bone changes occurred in 2% and 4% (respectively) of finger implants. Each of the other complications developed in 1% or less of implants, including particulate synovitis (0.06% of implants). Particle-wear lymphadenopathy was reported in 0.08% of implants. The literature review identified no reports of immunologic reactions, connective tissue disease, or other systemic effects associated with the use of Swanson finger implants.