title: Bioreconstructive poly-L/D-lactide implant compared with Swanson prosthesis in metacarpophalangeal joint arthroplasty in rheumatoid patients: a randomized clinical trial.
abstract: It was hypothesized that the bioresorbable interposition implant might offer a viable alternative to conventional silicone implant arthroplasty in rheumatoid metacarpophalangeal joint destruction. A randomized clinical study was performed to compare a stemless poly-L/D-lactide copolymer 96 : 4 (PLDLA) implant with the Swanson silicone implant. Results in 52 patients (53 hands and 175 joints) at a mean follow-up of 2 years (minimum 1 year) showed that the improvement in clinical assessments was comparable in both groups, except for better maintenance of palmar alignment in the Swanson group. The lack of implant fractures and intramedullary osteolysis were advantages of the PLDLA implant. The bioresorbable PLDLA interposition implant may offer an alternative tool for tailored reconstruction of rheumatoid metacarpophalangeal joints.
authors.affiliation: Rheumaorthopaedic Unit, Center of Rheumatic Diseases, Department of Internal Medicine, Tampere University Hospital Tampere, Finland. pirjo.honkanen@fimnet.fi
authors.forename: P B
authors.initials: PB
authors.lastname: Honkanen
authors.forename: R
authors.initials: R
authors.lastname: Tiihonen
authors.forename: E T
authors.initials: ET
authors.lastname: Skyttä
authors.forename: M
authors.initials: M
authors.lastname: Ikävalko
authors.forename: M U K
authors.initials: MU
authors.lastname: Lehto
authors.forename: Y T
authors.initials: YT
authors.lastname: Konttinen
mesh_terms: D020341:Absorbable Implants; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000601:surgery*; D050806:Arthroplasty, Replacement, Finger; D005260:Female; D018737:Hand Strength; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008662:Metacarpophalangeal Joint / Q000601:surgery*; D008875:Middle Aged; D010147:Pain Measurement; D017060:Patient Satisfaction; D011091:Polyesters; D016059:Range of Motion, Articular; D012828:Silicones; D055815:Young Adult
chemical_list: D011091:Polyesters; D012828:Silicones; C033616:poly(lactide)