Posterior shoulder instability hi a tlangpuiin traumatic posterior dislocation emaw, exercise emaw, activity dang emaw neih laiin traumatic posterior dislocation emaw repetitive minimally invasive injury vang a ni tlangpui a, kum khatah mi 100000 ah case 4.64 a awm thin. Posterior shoulder enkawlna atana surgical technique engemawzat .

Metacarpophalangeal fracture hi hand trauma-a fracture awm fo a ni a, hand trauma nei zinga 1/4 vel a ni. Kut leh motor hnathawh dan tha tak, a zia leh a buaithlak em avangin, kut ruh tliak enkawl dan hi a pawimawh zawk a, technically complex tak a ni a, chu chu long tubular fracture dang enkawlna aiin a pawimawh zawk a ni.

Humeral stem fractures (HSF) hi a tam hle a, fracture zawng zawng zinga 1% atanga 5% vel a ni. Kum khat chhunga vei zat hi mi 100,000-ah 13 atanga 20 vel a ni a, kum upat dan azirin a pung tih hmuhchhuah a ni.HSF hian bimodal age distribution a nei a, a sang ber chu mipa kum 21 leh 30 inkar a thleng a ni.

Naupangte khup ruh hliamah hian patellofemoral instability (PFI) hi a awm fo thin. PFI hi femoral trochlear groove-a patellar dynamic relationship inthlauhna avanga lo awm a ni. Patella pawn lam atanga inthlak danglamna chu PFI extreme a ni a, chu chu medial stabilizer hliam vang a ni a, chu chuan patella chu lateral femoral condyle a rawn nam a ni.

Fracture hi taksa peng dang hliam nen a inzawm tlangpui. Enkawlna kalpui danah chuan damlote chu a pum puia enkawl an ngai a ni.