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. 2022 Jun 1;23(1):522.
doi: 10.1186/s12891-022-05443-1.

Comparison of electromagnetic and optical navigation assisted Endo-TLIF in the treatment of lumbar spondylolisthesis

De-Rong Xu  1 , Liang-Rui Luan  1 , Xue-Xiao Ma  1 , Zhi-Chao Cong  2 , Chuan-Li Zhou  3
Affiliations

Comparison of electromagnetic and optical navigation assisted Endo-TLIF in the treatment of lumbar spondylolisthesis

De-Rong Xu et al. BMC Musculoskelet Disord. .

Erratum in

Abstract

Uniportal full endoscopic posterolateral transforaminal lumbar interbody fusion (Endo-TLIF) with percutaneous pedicle screw fixation is a promising, minimally invasive method for the treatment of lumbar spondylolisthesis. However, repeated radiation exposure from X-rays and the steep learning curve remain to be improved.

Keywords: Electromagnetic navigation; Endo-TLIF; Optical navigation.

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Conflict of interest statement

The authors declare that they have no Conflicts of Interest.

Figures

Fig. 1
Fig. 1
Representative case of a patient before Endo-TLIF. A and B: the fluoroscopic AP (a) and lateral (b) views. C and D: CT scan and MRI of the case with lumbar spondylolisthesis
Fig. 2
Fig. 2
A The result of transcranial electrical stimulation-induced motor-evoked potentials (MEPs) and electromyography (EMG) monitoring during the operation. B The surgical incision. C An interbody fusion cage was observed under endoscope
Fig. 3
Fig. 3
The incision plan. A According to C-arm positioning, bilateral iliac crest and pedicles were marked. B Navigation sensor frame is fixed beside operating bed
Fig. 4
Fig. 4
Preparation of Electromagnetic navigation. A After the field generator and a patient tracker equipped with signal coils was fixed on the ilium. B and C Anteroposterior and lateral fluoroscopic views of the lumbar segment were taken. D The software made surface matching on the respective vertebral body with the preoperative CT data in the electromagnetic coordinate system
Fig. 5
Fig. 5
A Access Tracker was successfully registered. B and E Guide wires insertion. In the navigation system, the procedure and track of Access Tracker is real-time visible in all spatial planes so the operator can make a quick adjustment as needed. C and D Determine the position of the guide wire and the endoscopic working channel with anteroposterior and lateral fluoroscopic views
Fig. 6
Fig. 6
Operation field under endoscope, green indicates safe operation. A The Laminotomy was achieved via the circular saw assisted by electromagnetic navigation under the view of the endoscope. B The discectomy was achieved assisted by electromagnetic navigation under the view of the endoscope. Cartilage endplate was exposed. C The dural sac was exposed, and pulsation of the dural sac improved. D The model cage was implanted to the center of the intervertebral space in appropriate depth, with the location confirmed by electromagnetic navigation
Fig. 7
Fig. 7
A The circular saw was registered to be connected to the electromagnetic navigation system. B The pedicle screws were installed to replace four guide wires. C and D The position of screws and cage were verified under C-arm fluoroscopy
Fig. 8
Fig. 8
A case of Endo-TLIF assisted by optical navigation navigation. A and B Intraoperative C-arm image of the guide wires. B and C The position of screws and cage were verified under C-arm fluoroscopy
Fig. 9
Fig. 9
The pedicle screws were installed assisted by optical navigation
Fig. 10
Fig. 10
Postoperative radiographs (A and B) and CT scan (C)
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