First metatarsophalangeal joint replacement: long-term results of a double stemmed flexible silicone prosthesis.
BACKGROUND
The aim of this retrospective study was to evaluate the long-term results of a Swanson type silicone prosthesis used for the first metatarsophalangeal (FMTP) joint replacement. It compares implants with and without the use of grommets.


METHODS
Fifty-nine FMTP joints were replaced. The average follow-up period was 9 years. Subjective and clinical findings were scored according to the AOFAS-HMI (American Orthopedic Foot and Ankle Society-Hallux Metatarsophalangeal-Interphalangeal) score. X-ray examination was carried out by evaluation of the presence of reactive bone areas around the implant.


RESULTS
Ninety-five percent of patients had relief of pain. Clinical findings showed a reasonable function (range of motion >30°) in 77% of the FMTP joints. A trend for decrease in radiolucency and lytic bone was seen in areas around the implant with the use of grommets.


CONCLUSIONS
The prosthesis shows good results concerning pain relief and a reasonable to good function (>30° range of motion) of the FMTP joint in most patients. Reactive bone areas around the implant decreased by the use of grommets.
Spaarne Ziekenhuis, Spaarnepoort 1, 2134 TM Hoofddorp, The Netherlands.
E W
EW
Ter Keurs
S
S
Wassink
B J
BJ
Burger
P C G
PC
Hubach
D019643:Arthroplasty, Replacement; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008683:Metatarsophalangeal Joint / Q000601:surgery*; D008875:Middle Aged; D011474:Prosthesis Design; D012189:Retrospective Studies; D012828:Silicones; D013997:Time Factors; D016896:Treatment Outcome
D012828:Silicones