Proximal humeral coordinate systems can predict humerothoracic and glenohumeral kinematics of a full bone system.

ABSTRACT:

Background

Clinical imaging often excludes the distal humerus, confounding definition of common whole-bone coordinate systems. While proximal anatomy coordinate systems exist, no simple method transforms them to whole-bone systems. Their influence on humeral kinematics is unknown.

Research question

How do humeral kinematics vary based on proximal and whole-bone coordinate systems, and can average rotation matrices accurately convert kinematics between them?

Methods

Three proximal coordinate systems were defined by the lesser and greater tuberosities (LT, GT), Crest of the greater tuberosity, and humeral shaft. Average rotation matrices derived from anatomic landmarks on cadaver humeri were generated between the proximal and whole-bone coordinate systems. Absolute angl

SUBMITTER: Sulkar HJ 

PROVIDER: S-EPMC8585709 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature