S cervical laminoplasty was developed in Japan in the 1970s for the treatment of ossification of the posterior longitudinal ligament and degenerative spinal canal stenosis; it remained a good alternate to laminectomy. By leaving the dorsal structures in situ, laminoplasty avoids the problems associated with laminectomy such as kyphosis, instability, and delayed neurologic problems due to scar i...

Percutaneous endoscopic lumbar foraminotomy (ELF) is a novel minimally invasive technique used to treat lumbar foraminal stenosis. However, the validity of foraminal decompression based on quantitative assessment using magnetic resonance imaging (MRI) has not yet been established. The objective of this study was to investigate the radiographic efficiency of ELF using MRI. Radiographic changes o...

OBJECTIVE Although minimally invasive posterior cervical foraminotomy (MI-PCF) is an established approach for motion preservation, the outcomes are variable among patients. The objective of this study was to identify significant factors that influence motion preservation after MI-PCF. METHODS Forty-eight patients who had undergone MI-PCF between 2004 and 2012 on a total of 70 levels were stud...

OBJECTIVE To report long-term clinical and radiological outcomes of minimally invasive posterior cervical foraminotomy (MI-PCF) performed in patients with unilateral single-level cervical radiculopathy. METHODS Of forty-six patients who underwent MI-PCF for unilateral single-level radiculopathy between 2005 and 2013, 33 patients were included in the study, with a mean follow-up of 32.7 months...