Unilateral Percutaneous Kyphoplasty with O-Arm Navigation for the Treatment of Kümmell’s Disease

Figures & data

Table 1 Clinical Characteristics of Patients with Kümmell Disease (n=20)

Patient	Age (Years)	Gender	Level	Li Grade	VAS	VH (mm)	Kyphotic Angle	ODI (%)	Follow-Up (Months)
1	60	Male	T11	I	8.1	14.9	17.8	87.8	15
2	58	Female	L1	II	8.8	13.3	19.3	85.6	12
3	71	Male	T11	I	8.9	16.3	18.9	88.6	12
4	70	Male	T11	II	7.9	13.1	16.5	82.5	13
5	63	Female	L1	II	8.5	14.0	14.5	88.3	14
6	65	Female	T12	II	8.6	13.5	19.9	84.5	16
7	61	Male	T12	II	8.5	12.8	22.6	85.6	14
8	62	Female	T12	II	8.9	14.4	27.6	82.3	12
9	55	Female	T12	II	9.1	14.0	25.4	83.0	13
10	58	Female	L1	I	9.2	16.5	18.6	84.6	12
11	71	Male	T10	I	8.8	16.7	17.6	88.7	13
12	58	Female	T12	I	8.5	15.2	16.6	86.6	13
13	73	Female	T12	II	7.8	12.9	16.5	85.6	12
14	78	Female	T11	II	7.9	13.1	14.5	82.3	14
15	62	Female	L2	II	9.2	13.8	18.8	89.8	18
16	55	Female	T12	II	9.1	14.2	17.7	88.8	15
17	58	Male	T10	I	9.0	16.1	16.3	89.0	14
18	56	Female	T12	I	8.6	14.7	14.5	82.3	13
19	59	Female	T11	II	8.0	14.6	13.3	89.6	13
20	68	Male	T12	I	8.1	15.5	13.6	84.5	16

Note: VAS, VH (mm), Kyphotic angle, ODI (%): these are all preoperative data.

Abbreviations: VH, anterior vertebral height; VAS, visual analogue scale; ODI, Oswestry disability index; PKP, percutaneous kyphoplasty.

Figure 1 Preoperative X-ray showed collapsed vertebral body and fractures in the vertebral body.

Figure 2 (A) Preoperative CT showed collapsed vertebral body and fractures in the vertebral body; (B) preoperative MRI showed collapsed vertebral body and fractures in the vertebral body.

Figure 3 Computer navigation planning route, accurate for identifying the fracture of the vertebral fissure.

Figure 4 Accurate puncture to the fissure during surgery.

Figure 5 Bone cement was injected into the crack of the collapsing vertebral body during surgery.

Table 2 Efficacy Evaluation

	Pre-PKP	3 Days After PKP	3 Months After PKP	12 Momths After PKP
VAS	8.6±0.5	2.2±0.2*	2.2±0.2*	2.3±0.2*
VH (mm)	14.5±1.2	19.4±1.2*	19.3±1.1*	18.6±1.1*
Kyphotic angle	18.0±3.7	5.8±0.8*	7.5±1.1*	9.9±0.8*
ODI (%)	86.0±2.7	26.7±2.0*	25.4±1.9*	27.6±1.7*

Note: *P < 0.05 compared to preoperative value.

Abbreviations: PKP, percutaneous kyphoplasty; VAS, visual analogue scale; VH, anterior vertebral height; ODI, Oswestry disability index.

Figure 6 Changes in VAS score, anterior height of the vertebral body, kyphotic angle, and ODI score before and after surgery.