The use of average Pavlov ratio to predict the risk of post operative upper limb palsy after posterior cervical decompression

Table 3 Summary of patients with post operative upper limb palsy

Case no.	Age (yr)/Sex	Etiology	Presentation			Onset (days)	Duration of recovery (days)	Laterality	Level of involvement	HIA on preop. MRI
			Dysesthesia	Sensory deficit	Motor deficit (MMT)
1	72/M	CSM	Yes	No	No	5	2	Left	C5	-
2	80/M	CSM	Yes	No	Yes (4 to -3)	7	42	Left	C5	C3/4, C6/7
3	71/F	CSM	Yes	No	Yes (5 to 4)	2	42	Bilateral	C5, C8	C5
4	54/F	CSM	Yes	No	No	1	8	Left	C5	C6/7
5	50/M	OPLL	Yes	Yes	Yes (5 to 3)	1	31	Right	C6, C7	C3/4
6	74/M	CSM	Yes	No	No	3	95	Right	C5	C3/4, C5/6
7	51/M	CSM	Yes	No	Yes (5 to 4)	4	5	Right	C5–7	C4/5
8	50/M	PID	Yes	No	No	3	1	Right	C5	C3–5
9	54/M	CSM	Yes	No	No	6	1	Right	C5	-
10	78/M	CSM	Yes	No	Yes (4 to -3)	1	21	Bilateral	C5–6	C5/6
11	49/F	OPLL	Yes	No	No	2	2	Left	C5	-
12	68/F	OPLL	Yes	Yes	Yes (5-4)	1	182	Bilateral	C5, C8, T1	-
13	61/F	OPLL	Yes	No	No	1	15	Left	C5	C4/5
14	49/M	CSM	Yes	No	No	1	27	Bilateral	C5	-
15	59/F	OPLL	Yes	No	No	1	11	Bilateral	C5	-
16	84/M	CSM	No	No	Yes (4-3)	4	15	Left	C5–7	C3/4, C6/7
17	60/M	CSM	Yes	No	No	2	5	Right	C5	C4/5, C5–6
18	45/M	CSM	Yes	No	Yes (5-0)	1	120	Bilateral	C5-T1	C3/4, C6/7

CSM = cervical spondylotic myelopathy; OPLL = ossification of the posterior longitudinal ligament; PID = Protrusion of cervical disc in developmental cervical stenosis; MMT = Manual muscle testing; HIA = T2 high-signal intensity area in the spinal cord;

ISSN: 1749-799X