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Fig. 2 | Journal of Orthopaedic Surgery and Research

Fig. 2

From: Ultrasonic bone scalpel for thoracic spinal decompression: case series and technical note

Fig. 2

Schematic diagrams of thoracic spinal circumferential decompression with UBS. a Expose the lamina and transverse processes of diseased segments. b Cut through the lamina and ossified ligament flava along the middle line of bilateral facet joints. c Separate the adhesion of ossified ligaments and the dura mater and remove the lamina and OLF integrally. d Resect bilateral facet joints and expose the nerve root and intervertebral disk. e Remove partial intervertebral disk, create an interconnected passage at the ventral side of OPLL, and thinning, and remove the ossified lesions. UBS, ultrasonic bone scalpel; OLF, ossification of the ligamentum flavum; OPLL, ossification of posterior longitudinal ligament

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