TABLE 4.
Complications Mentioned in All Included Studies
| Study | Sample Size (PTED/OM) | Total Complications N (%) | Complications PTED N (%) | Description | Complications OM N (%) | Description |
| Mayer et al, 1993 | 40 (20/20) | 0 | 0 | – | 0∗ | – |
| Hermantin et al, 1999 | 60 (30/30) | 1 (1.7%) | 0 | – | 1 (3.3%) | 1 (3.3%) incidental durotomy |
| Krappel et al, 2001 | 40 (20/20) | 0 | 0 | – | 0 | – |
| Gibson et al, 2017 | 140 (70/70) | 7 (5%) | 6 (8.6%) | 2 (2.9%) possibly dural tears4 (5.7%) mild dysesthesia | 1 (1.4%) | 1 (1.4%) persistent foot drop |
| Tao et al, 2018 | 462 (231/231) | 77 (16.6%) | 14 (6.1%) | 14 (6.1%) transient leg paresthesia | 63 (27.3%) | 7 (3.0%) incidental durotomy56 (24.2%) chronic low back pain |
| Tacconi et al, 2019 | 38 (18/20) | 3 | 1 (5.5%) | 1 (5.5%) reversible hypothermia | 2 (10%) | 1 (5%) superficial wound infection1 (5%) transient leg paresthesia |
| Tacconi et al, 2020 | 50 (25/25) | 0 | 0 | – | 0 | - |
| Dai et al, 2020 | 94 (47/47) | 5 (5.3%) | 1 (2.1%) | 1 (2.1%) dystasia | 4 (8.5%) | 1 (2.1%) lumbar deformation1 (2.1%) aggravated pain2 (4.3%) dystasia |
| Pan et al, 2016 | 106 (48/58) | 16 (15.1%) | 3 (6.3%) | 3 (6.3%) transient leg paresthesia | 13 (22.4%) | 3 (5.2%) transient leg paresthesia2 (3.4%) dural lacerations4 (6.7%) transient leg weakness4 (6.7%) urinary retention |
| Wang et al, 2017 | 110 (60/50) | 0 | – | 0 | – | – |
| Choi et al, 2018 | 40 (20/20) | 0 | 0 | – | 0 | – |
| Xu et al, 2020 | 145 (58/87) | 29 (20%) | 5 (8.6%) | 3 (5.2%) wound infections2 (3.4%) transient nerve paralysis | 24 (27.6%) | 7 (8.0%) wound infections10 (11.5%) transient nerve paralysis7 (8.0%) spinal instability |
| Overall | 1325 (647/678) | 138 (10.4%) | 30 (4.6%) | 108 (15.9%) |
∗
One patient in the OM group underwent a revision procedure due to scar tissue. This revision procedure was complicated due to the development of spondylodiscitis.