• Hyeun Sung Kim, Pang Hung Wu, Yeon Jin Lee, Dae Hwan Kim, Ji Yeon Kim, Jun Hyung Lee, Jun Bok Jeon, and Il-Tae Jang.
• Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea. Electronic address: neurospinekim@gmail.com.
• World Neurosurg. 2021 Jan 1; 145: 621-630.

BackgroundCervical radiculopathy is a common cervical spine condition. However, a paucity of data is available on the effect of partial pediculotomy and partial vertebrotomy (PPPV) for posterior endoscopic cervical foraminotomy (PECF) to treat cervical radiculopathy. We investigated the radiological and clinical outcomes of this approach.MethodsWe performed a retrospective evaluation of 30 patients with cervical radiculopathy who had undergone PPPV PECF. Pre- and postoperative radiographs were performed to evaluate for stability, and computed tomography (CT) was used to evaluate the foraminal dimensions and area in the sagittal view. Three-dimensional reconstruction of the area of decompression was also performed. The clinical outcomes were evaluated using the visual analog scale, Oswestry disability index, and the MacNab criteria.ResultsNo complications or recurrence developed in our PPPV PECF cohort during the study period. At the preoperative, 1-week postoperative, 3-month postoperative, and final follow-up examinations, the mean visual analog scale scores and mean Oswestry disability index showed significant improvement (score, 7.6, 3.0, 2.1, and 1.7, respectively; P < 0.05; and score, 73.9, 28.1, 23.3, and 21.5, respectively; P < 0.05). All the patients scored good to excellent using the MacNab criteria. The radiological findings showed that PPPV PECF resulted in a significant increase in decompression in the foramen area for all CT-measured parameters compared with the mean preoperative values: 1) the sagittal area increased 60.1 ± 23.1 mm2; 2) the craniocaudal length increased 4.0 ± 1.54 mm; and 3) the ventrodorsal length increased 4.0 ± 1.97 mm; Also, the 3-dimensional CT scan reconstruction decompression area had increased 996 ± 266 mm2 (P < 0.05).ConclusionPPPV PECF is a safe route for decompression of the cervical spine with good clinical and radiological outcomes.Copyright © 2020 Elsevier Inc. All rights reserved.

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