Ulnar paradox is due to:
Ulnar paradox The higher the lesion of the median and ulnar nerve injury , the less prominent is the deformity and vice versa, because in higher lesions the long finger flexors are also paralysed (which were causing interphalangeal flexion/clawing). The loss of finger flexion makes the deformity look less obvious/ less clawing In low ulnar nerve palsy forearm muscles are spared but the clawing is more ( as compared to high ulnar nerve palsy) because in low ulnar nerve palsy finger flexors are spared which adds on to the deformity by flexing IP joints.
FDP
FPL
ECRB
Radial nerve disease
Peripheral Nerve Injury