2 Tetraplegia ( quadriplegia ) : injury within the cervical region; loss of motor , sensory function, or both, in the arms, trunk, and legs, as well as loss of bladder, bowel, and sexual function to some degree.Paraplegia: injury in the thoracic, lumbar, or sacral segments; involvement of the trunk, legs, bowel, bladder, and sexual dysfunction.
3 Neurological level: the most caudal neurological segment that retains normal sensory and motor function on both sides of the body.A muscle with a strength grade of 3 is considered to have an intact innervation if the next most rostral muscle is grade 5.
4 Complete lesion: absence of sensory or motor function in the lowest sacral segment Incomplete lesion: either sensory or motor function is present; sacral sparing
5 Motor level身體左右兩側同時具有正常運動機能之最低脊髓部位，根據10條關鍵肌(Key muscles )之肌力而定
6 Motor level Key muscles C5 Elbow flexors L2 Hip flexors C6 Wrist extensors L3 Knee extensorsC7 Elbow extensors L4 Ankle dorsiflexorsC8 Finger flexors L5 Long toe extensorsT1 Finger abductors S1 Ankle plantar flexors
7 Muscle power0=total paralysis1=palpable or visible contraction2=active movement, gravity eliminated3=active movement, against gravity4=active movement, against some resistance5=active movement, against full resistance
9 key sensory points C2 Occipital protuberance C3 Supraclavicular fossa C Top of the acromioclavicular jointC Lateral side of the antecubial fossaC ThumbC Middle fingerC Little fingerT Medial(ulnar)side of the antecubiatl fossaT Apex of the axillaT Third intercostal spaceT Fourth intercostal space (nipple line)T Fifth intercostal space (midway between T4 and T6)
10 T6 –T intercostal spaceT Tenth intercostal space(umbilicous)T Eleventh intercostal spaceT Inguinal ligament at mid-pointL Half the distance between T12 and L2L Mid-anterior thighL Medial femoral condyleL Medial malleolusL Dorsum of the foot at the third metatarsal phalan-geal jointS Lateral heelS Popliteal fossa in the midlineS lschial tuberosityS4-S Perianal area
11 ASIA Impairment ScaleA=Complete: No motor or sensory function is preserved in the sacral segments S4-S5B=Incomplete:Sensory but not motor functions preserved below the neurological levelC=Incomplete:Motor function is preserved below the neurological level, and the majority of key muscles < 3D=Incomplete: Motor function is preserved below the neurological level, and the majority of key muscles below the neurological level >= 3E=Normal:Motor and sensory function is normal