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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: An open-label randomized multi-Centre study to evaluate anterior controllable Antedisplacement and fusion versus posterior Laminoplasty in patients with cervical ossification of the posterior longitudinal ligament: study design and analysis plan (STAR)

Fig. 2

Schematic diagram of ACAF technique with steps A through E: (A) Expose and confirm surgical levels; (B) Remove discs, decompress at the levels cephalic and caudal to OPLL and remove the anterior portion of the middle vertebral bodies with OPLL; (C) Place interbody cages and create a groove on the left side, and fix anterior plate; (D) Create a groove on the right side, and isolate the vertebrae with OPLL and (E) Evaluate the vertebrae with OPLL. Sagittal (left) and transverse (right) sectional images of the cervical spine. Abbreviations: ACAF, anterior controllable antedisplacement and fusion; OPLL, ossification of the posterior longitudinal ligament

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