Flexible hinge toe implant arthroplasty for rheumatoid arthritis of the first metatarsophalangeal joint: long-term results. 2001

T Hanyu, and H Yamazaki, and H Ishikawa, and K Arai, and C T Tohyama, and K Nakazono, and A Murasawa
Department of Orthopedic Surgery, Niigata University School of Medicine, 1 Asahimachi-dori, Niigata 951-8510, Japan.

We report the long-term clinical results and survival rate of the implant in flexible hinge toe implant arthroplasty of the first metatarsophalangeal joint, combined with a shortening oblique osteotomy of the metatarsal neck in the lateral toes, in patients with rheumatoid arthritis. Between 1983 and 1990, arthroplasty was performed on 97 feet in 66 patients. Twenty-seven patients died; follow-up information was available for 60 feet in the remaining 39 patients, who were followed for an average of 12 years. Twenty-nine patients (74%) were satisfied with the outcome after surgery, 7 were satisfied but had some pain or recurrent deformities, and 3 were unsatisfied. Radiologically, visible fracture was identified in nine implants. Four implants were removed because of infection (n = 2) or recurrent deformity (n = 2); no implant was removed because silicone synovitis developed. With revision as the endpoint, the implant survival rate was 93% at 10 years, and with radiographic implant fracture as the endpoint, the implant survival rate was 87% at 10 years. Shortening oblique osteotomy of the lateral toes appeared to decrease the rate of implant fracture and should be performed concomitantly with implantation when rheumatoid forefoot deformities are being reconstructed.

UI MeSH Term Description Entries
D008683 Metatarsophalangeal Joint The articulation between a metatarsal bone (METATARSAL BONES) and a phalanx. Joint, Metatarsophalangeal,Joints, Metatarsophalangeal,Metatarsophalangeal Joints
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011859 Radiography Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film). Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old
D001172 Arthritis, Rheumatoid A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated. Rheumatoid Arthritis
D001178 Arthroplasty Surgical reconstruction of a joint to relieve pain or restore motion. Bone Tunnel Enlargement,Bone Tunnel Widening,Arthroplasties,Bone Tunnel Enlargements,Bone Tunnel Widenings,Enlargement, Bone Tunnel,Tunnel Enlargement, Bone,Tunnel Widening, Bone,Widening, Bone Tunnel
D012826 Silicone Elastomers Polymers of silicone that are formed by crosslinking and treatment with amorphous silica to increase strength. They have properties similar to vulcanized natural rubber, in that they stretch under tension, retract rapidly, and fully recover to their original dimensions upon release. They are used in the encapsulation of surgical membranes and implants. Elastomers, Silicone,Rubber Silicone,Silicone Rubber,Elastosil,Microfil,SE-30,Elastosils,Microfils,SE 30,SE30,Silicone Elastomer

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