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Type:
Educational Exhibit
Keywords:
Musculoskeletal joint, Musculoskeletal soft tissue, Musculoskeletal bone, MR, Conventional radiography, Arthrography, Trauma
Authors:
M. Morán-Hevia1, M. D. V. LOPEZ1, M. Vicente Quilez1, V. Santamaría Pérez1, M. Molinero Montes1, I. Noval Tunon2, E. Guerra del Barrio3, A. I. Barrio Alonso1; 1Oviedo/ES, 2Aviles/ES, 3Mieres/ES
DOI:
10.1594/ecr2017/C-1401
Background
Carpal instability is a biomechanical alteration refered to the loss of ability of the wrist to maintain a normal balance between the carpal bones under physiologic movements,
losing joint congruency as a result.
The forms secondary to traumas are the most frequent; as trauma causes ligamentous injuries that lead to misalignments of the joint surfaces,
or badly healed fractures with consequent articular incongruency.
Carpal instability due to the deposition of microcrystals caused by chronic inflammation processes (rheumatoid arthritis),
metabolic (chondrocalcinosis and gout),
and congenital diseases (ulnar minus variance) are less frequent.
Any case,
when an alteration of carpal kinematics is generated and normal carpal biomechanics are not restored,
this alteration leads,
over the course of time,
to degeneration of the cartilage and a progressive tendency towards carpal collapse,
if a precocious treatment is not provided.
Knowledge of normal wrist anatomy is important for the proper diagnosis and treatment of carpal instability