DOG carpus - anatomy, imaging

Question 1

Neville T VS 2018

Kinematics of carpal joint
Palmar radiocarpal and ulnocarpal lig

Answer 1

Loading of carpus -> extension, slight valgus, radiocarpal bone supination

No diff in transection of palmar radiocarpal lig OR palmar ulnocarpal lig in terms of carpal bone translation or rotation

Question 2

Milgram VCOT 2019

Palmar radiocarpal and ulnocarpal lig

Answer 2

ABC joint position larger role in craniocaudal joint stability than the ligs

Increasing flexion >15deg increased craniocaudal translation of carpus relative to paw in both intact and transected ligs

Question 3

Castelli VS 2019

Prospective cadaveric normal carpus
Contrast arthrography CT and MRI

Answer 3

Arthrography improvved MRI but not CT for carpal lig

Question 4

Atamna VS 2021

Cadaveric study
interosseous lig during carpal movement

Answer 4

internal rotation of radius due to extension of carpus stretches IO lig

external rotation of radius due to flexion of carpus

this effect lost when IO transected

Question 5

U/S anatomy

Answer 5

Rellan VRU 2023 - palmar region
Entani Animals 2022 - carpal tendons