Publications by authors named "Perttu S Neuvonen"
Article Synopsis
- Dislocation is a common complication in total hip replacement (THR), and recent increases in dislocation rates at a specific institution were linked to reduced head coverage from a new neutral liner.
- The study aimed to compare articulating head coverage among 25 different modular neutral polyethylene liners used in THR to identify significant differences and create a new classification system.
- Results indicated that head coverage varied significantly between the liners (from 167.7° to 194.8°), leading to the conclusion that even neutral liners differ in coverage, prompting the proposal of a "hemispheric coverage index" for better distinction.
Background: In 2016, the CPT stem replaced the Exeter stem as the main cemented stem at our institution. We assessed the prevalence of revision for periprosthetic femoral fracture (PFF) in patients operated on with either CPT or Exeter stem and compared the risk for revision between these stems.
Methods: Primary total hip arthroplasties either performed in 2012-2015 with Exeter stem (n = 1443) or in 2017-2018 with CPT stem (n = 1322) were included.
Background and purpose - The introduction of new total hip replacements (THRs) is known to be associated with an increased risk for complications. On completion of a competitive procurement process, a new uncemented cup system was introduced into general use at our institution in 2016. We launched this study after the introduction to assess (1) the incidence of early dislocations of the old (Pinnacle) and the new (Continuum) cup systems, and (2) whether the cup design would affect the risk for dislocation.
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