Technical Aspects on the Use of Ultrasonic Bone Shaver in Spine Surgery: Experience in 307 Patients

Table 1

The number of patients, gender, age, surgical data, and follow-up data are given for each pathology type operated with the aid of Misonix ultrasonic bone shaver. Values are given as mean (range) when applicable.

Pathology level

Type of pathology

Number of cases ()

Gender M/F ()

Age at surgery (years)

Surgical technique

Operation duration (min)

Blood transfusion (mL)

Dural tear ()

Preop ODI (%)

Postop ODI (%)

Preop NDI (%)

Postop NDI (%)

Lumbar

Unstable lumbar central and/or lateral stenosis (>1 level)

136

54/82

68 (45–71)

Laminectomy + extended foraminotomy + posterior stabilization + fusion

196 (90–257)

500 (250–750)

4

42 (32–56)

18% (6–28)

IA

IA

Lateral recess syndrome

70

23/47

52 (31–68)

Hemilaminectomy + limited foraminotomy

75 (55–120)

0

1

38 (24–45)

16% (6–24)

IA

IA

Far lateral disc

16

7/9

63 (43–72)

Lateral foraminotomy

73 (42–135)

0

0

25 (12–45)

8 (4–12)

IA

IA

Recurrent disc herniation

32

14/18

58 (30–69)

Revision hemilaminectomy + limited foraminotomy

75 (64–134)

0

0

28 (14–35)

8 (2–12)

IA

IA

Thoracic

Spinal intramedullary tumors

5

1/4

46 (25–65)

Laminectomy

213 (75–278)

0 (0–250)

0

46 (32–56)

25 (8–36)

IA

IA

Traumatic vertebral body fractures

12

8/4

57 (28–76)

Laminectomy and exposing pedicle anatomy

214 (97–256)

500 (0–750)

0

49 (42–56)

38 (12–48)

IA

IA

Cervical

Cervical stenosis

22

12/10

71 (65–78)

Posterior laminoplasty

154 (100–195)

500 (0–750)

0

IA

IA

58 (25–75)

16 (8–26)

Chiari malformation

3

1/2

38 (29–45)

C1 laminectomy + foramen magnum decompression

143 (98–184)

250 (0–500)

0

IA

IA

12 (4–25)

8 (4–24)

Cervical vertebral body fracture

3

2/1

47 (43–68)

Corpectomy + anterior fusion

137 (116–174)

500 (250–750)

0

IA

IA

68 (23–80)

34 (8–45)

Cervical disc, calcified, and osteophytes

8

3/5

65 (47–73)

Resection of calcified disc and end plates

107 (65–146)

0

0

IA

IA

15 (2–18)

9 (3–19)

Preop ODI: preoperative Oswestry Disability Index; postop ODI: postoperative Oswestry Disability Index; preop NDI: preoperative Neck Disability Index; postop NDI: postoperative Neck Disability Index; hr: hour; min: minutes; IA: inapplicable.