Four-Dimensional Computed Tomography-Derived Radiolunate Arthrokinematics With a Case Study in Four-Corner Arthrodesis.

ABSTRACT:

Background

The radiolunate joint is conventionally thought to be spared from radiocarpal osteoarthritis, but proximal lunate degenerative changes have been noted. An investigation of radiolunate arthrokinematics in ostensibly healthy wrists may improve understanding of posttraumatic and postoperative outcomes. We hypothesize that four-dimensional computed tomography (4DCT)-derived radiolunate arthrokinematics during motion will differ between wrists with type 1 and type 2 lunates. The clinical-translational relevance of this analysis is highlighted using a 4DCT case study of scaphoid excision with 4-corner arthrodesis (SEFCA).

Methods

Four-dimensional computed tomography data were collected during flexion-extension and radioulnar deviation in 19 healthy wrists (mean [SD] age

SUBMITTER: Trentadue TP 

PROVIDER: S-EPMC12331639 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature