Open AccessThe Impingement-free, Prosthesis-specific, and Anatomy-adjusted Combined Target Zone for Component Positioning in THA Depends on Design and Implantation Parameters of both Components
Author(s) -
Karl-Heinz Widmer
Publication year - 2020
Publication title -
clinical orthopaedics and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.178
H-Index - 204
eISSN - 1528-1132
pISSN - 0009-921X
DOI - 10.1097/corr.0000000000001233
Subject(s) - prosthesis , orientation (vector space) , medicine , orthodontics , range of motion , implant , rotation (mathematics) , biomedical engineering , prosthesis design , geometry , surgery , mathematics
Lewinnek's recommendation for orienting the cup in THA is criticized because it involves a static assessment of the safe zone and because it does not consider stem geometry. A revised concept of the safe zone should consider those factors, but to our knowledge, this has not been assessed.