Kev puas tsuaj ntawm humerus, vojvoog thiab ulna, tom qab kev kho ntawm lub luj tshib sib koom
Ligament raug mob ntawm lub luj tshib
Unstable dislocation ntawm lub luj tshib sib koom
Cov khoom no feem ntau yog ua los ntawm aluminium alloy daim hlau, high-strength engineering yas, nplaum ntaub, sponges, nylon siv, thiab lwm yam ntaub ntawv.