1. Anatomical tsom xam: Raws li cov npe sib koom ua ke tseem ceeb cuam tshuam los ntawm kev sib tsoo, nws muab faib ua dab teg, xib teg, inter- ntiv tes, ntiv tes xoo, thiab ntiv tes pawg.
2. Kev taw qhia txav: Raws li txoj haujlwm lossis kev txav mus los ntawm kev sib koom ua ke tseem ceeb tshaj plaws cuam tshuam los ntawm kev tawg, nws tau muab faib ua flexion, extension, radial lateral deviation, ulnar lateral deviation thiab lwm yam.
3. Lub hom phiaj tseem ceeb: Raws li lub hom phiaj tseem ceeb ntawm kev siv cov splint, nws tau muab faib ua braking, txwv thiab nquag.
4. Muaj cov pob qij txha hauv nruab nrab: Nws tau muab faib ua pawg ntawm hom 0, hom 1, hom 2, hom 3, thiab lwm yam. suav nrog cov pob qij txha theem nrab.
