Phenotype details |
see paper; …, extension contractures knees; congenital hip dislocation, flexion contractures fingers III-V; talus, talus valgus or varus; short neck; diminished muscle mass, central tongue atrophy; no pterygia; third trimester knee extension on ultra-sound; unaffected muscle type‐I‐fiber predominance, mild difference in fiber size, moderate lipid storage |