The intrinsic muscles of the hand - Function, assessment and principles for therapeutic intervention

This article reviews the functional anatomy of the intrinsic muscles of the fingers (palmar interossei, dorsal interossei, hypothenar and lumbrical muscles) and discusses the pathokinesiology of the hand with intrinsic muscle paralysis and its consequences for Activities for Daily Living. The assessment of muscle strength: manual and instrumental and principles for therapeutic intervention are also discussed.