arthrogryposis

noun

ar·​thro·​gry·​po·​sis ˌär-(ˌ)thrō-gri-ˈpō-səs 

1

: congenital fixation of a joint in an extended or flexed position

2

: any of a group of congenital conditions characterized by reduced mobility of multiple joints due to contractures causing fixation of the joints in extension or flexion

arthrogrypotic

ˌär-(ˌ)thrō-gri-ˈpä-tik 

adjective

Higher complication rates are noted in the arthrogrypotic foot than with idiopathic clubfoot management.

—James C. Drennan, Drennan's The Child's Foot and Ankle, 2nd edition