Test of ulnar deviation in clenching fist:
It is also called Finkeisten’s sign. Let the patient bend his thumb and make a fist with the thumb in the palm, then make the wrist joint passively twist to ulnar side. If there is pain in the styloid process of radius, it is positive, indicating tenosynovitis of styloid process of radius.

Crush test of cartilage in carpal triangle:
Make the wrist in neutral position, then make the wrist passively twist to ulnar side and squeeze and press the wrist longitudinally. If there appears pain of inferior radioulnar joint, it is positive, and seen in the injury of cartilage in carpal triangle and fracture of styloid process of ulna.