title: Survivorship of high tibial osteotomy in the treatment of osteoarthritis of the knee: Finnish registry-based study of 3195 knees.
abstract: Previous studies from single centres or single-surgeon   series report good early and mid-term results for high tibial osteotomy   (HTO) in the treatment of osteoarthritis of the knee. However, the   survivorship of HTO at a national level is unknown. This registry-based   study included 3195 high HTOs performed between 1987 and 2008. Kaplan-Meier analysis   revealed an overall survivorship of 89% (95% confidence interval   (CI) 88 to 90) at five years and 73% (95% CI 72 to 75) at ten years,   when conversion to total knee replacement was taken as the endpoint.   Females and patients aged > 50 years had worse survivorship than   males or patients aged ≤ 50 years (hazard ratio (HR) 1.26 (95% CI   1.11 to 1.43) and HR 1.41 (95% CI 1.23 to 1.64), respectively).   The survivorship of HTOs performed between 1998 to 2008 was worse   than for those performed between 1987 and 1997.
authors.affiliation: Oulu University Hospital, PL 21, 90029 OYS, Oulu, Finland. tuukka.niinimaki@fimnet.fi
authors.forename: T T
authors.initials: TT
authors.lastname: Niinimäki
authors.forename: A
authors.initials: A
authors.lastname: Eskelinen
authors.forename: B S
authors.initials: BS
authors.lastname: Mann
authors.forename: M
authors.initials: M
authors.lastname: Junnila
authors.forename: P
authors.initials: P
authors.lastname: Ohtonen
authors.forename: J
authors.initials: J
authors.lastname: Leppilahti
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D007719:Knee Joint / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000401:mortality* / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D012042:Registries; D015996:Survival Rate; D013977:Tibia / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult