Table 1 Characteristic of included studies
Study | Country | Study type | Follow-up time (months) | Disease | Sample size | Sex (male:female) | Age | Interventions | Populations |
|---|---|---|---|---|---|---|---|---|---|
Yu [16] | Japan | Single-arm study | 12 | Single-segment myelopathy | 16 | 6:10 | 52 | Posterior percutaneous endoscopic cervical discectomy | Single-segment myelopathy |
Qiu [17] | China | Single-arm study | 9 | Cervical spondylotic radiculopathy | 10 | 6:4 | 41.5 | Posterior intervertebral foraminal discectomy via Delta channel | Cervical spondylotic radiculopathy |
Luo [18] | China | Single-arm study | 25.7 | Cervical spondylotic radiculopathy | 33 | 16:17 | 51.3 | Keyhole foraminotomy via a percutaneous posterior full-endoscopic approach | Cervical spondylotic radiculopathy |
Haijun [19] | China | Single-arm study | 24.36 | Cervical spondylotic radiculopathy | 50 | 23:27 | 61.19 | Posterior percutaneous endoscopic cervical discectomy | Cervical spondylotic radiculopathy |
Oshima [20] | Japan | Double-arm study | 27.8 | Cervical spondylotic myelopathy | 46 | 32:14 | 63.4 | Cervical microendoscopic interlaminar decompression | Cervical spondylotic myelopathy |
Liu [13] | China | Single-arm study | 6 | Cervical intervertebral disk herniation | 12 | 5:7 | 51.92 | Posterior percutaneous endoscopic cervical discectomy | Cervical intervertebral disk herniation |
Zhang [21] | China | Single-arm study | 9 | Cervical spondylotic radiculopathy | 14 | 6:8 | 40.5 | Percutaneous transforaminal endoscopic discectomy via posterior approach | Cervical spondylotic radiculopathy |
Ross [22] | Portland | Single-arm study | 27 | Cervical spondylotic myelopathy | 30 | 30:0 | 69 | Minimally invasive cervical foraminotomy (channel) | Cervical spondylotic myelopathy |
Zhang [23] | China | Single-arm study | 28 | Cervical spondylotic myelopathy | 45 | 25:20 | 58 | Cervical endoscopic laminoplasty | Cervical spondylotic myelopathy |
Siemionow [24] | United States | Single-arm study | 24 | Single- or multilevel cervical spondylosis | 53 | 18:35 | 53 | Indirect decompression and posterior cervical fusion using a cervical intervertebral cage (channel) | Single- or multilevel cervical spondylosis |
Yadav [25] | India | Single-arm study | 19 | Multilevel cervical compressive myelopathy | 50 | 38:12 | 55.8 | Endoscopic decompression of cervical spondylotic myelopathy | Multilevel cervical compressive myelopathy |
Dahdaleh [14] | United States | Single-arm study | 20.3 | Cervical spondylotic myelopathy | 10 | 8:2 | 67 | Minimally invasive endoscopically assisted decompression of stenosis | Cervical spondylotic myelopathy |
Yabuki [26] | Japan | Single-arm study | 14.9 | Cervical spondylotic myelopathy | 10 | 5:5 | 66 | Endoscopic partial laminectomy | Cervical spondylotic myelopathy |
Adamson [32] | United States | Single-arm study | 14.8 | Unilateral radiculopathy | 100 | 63:37 | 46.6 | Microendoscopic posterior cervical laminoforaminotomy | Unilateral radiculopathy |