Table 3.
Distribution of retinal redetachment rate after the initial retinotomy surgery according to ocular characteristics and intraoperative factors
| Variable | Retinal redetachment after the initial retinotomy surgery | P (multiple linear regression test) | |
|---|---|---|---|
|
| |||
| No (n=45), n (%) | Yes (n=16), n (%) | ||
| History of previous retinal surgery | |||
| No | 22 (48.9) | 6 (37.5) | 0.756 |
| Yes | 23 (51.1) | 10 (62.5) | |
| Lens status | |||
| Phakic | 19 (42.2) | 7 (43.8) | 0.783 |
| Pseudophakic | 19 (42.2) | 6 (37.5) | |
| Aphakic | 7 (15.6) | 3 (18.7) | |
| RRD location | |||
| Inferior | 13 (28.9) | 6 (37.5) | 0.671 |
| Temporal | 1 (2.2) | 1 (6.3) | |
| Superior | 0 | 1 (6.3) | |
| Nasal | 1 (2.2) | 1 (6.3) | |
| Two quadrants | 5 (11.1) | 0 | |
| Three quadrants | 7 (15.6) | 0 | |
| Four quadrants | 18 (40.0) | 7 (43.7) | |
| Grade of PVR | |||
| Anterior | 37 (82.2) | 12 (75.0) | 0.643 |
| Posterior | 8 (17.8) | 4 (25.0) | |
| Number of posterior PVR clock hours, mean±SD (range) | 5.26±3.58 (1-12) | 5.64±2.50 (3-12) | 0.967 |
| Number of anterior PVR clock hours, mean±SD (range) | 5.82±2.89 (1-12) | 5.67±2.43 (3-12) | 0.857 |
| Extension of retinotomy | |||
| <180 | 21 (46.7) | 8 (50.0) | 0.802 |
| ≥180 | 24 (53.3) | 8 (50.0) | |
| Location of retinotomy | |||
| Inferior | 25 (55.5) | 10 (62.5) | 0.671 |
| Temporal | 9 (20.0) | 3 (18.7) | |
| Superior | 3 (6.7) | 1 (6.3) | |
| Nasal | 1 (2.2) | 2 (12.5) | |
| Four quadrants | 7 (15.6) | 0 | |
| SB surgery (in addition to PPV) | |||
| No | 19 (42.2) | 8 (50.0) | 0.852 |
| Yes | 26 (57.8) | 8 (50.0) | |
| Postoperation IOP (mmHg), mean±SD (range) | 15.56±5.32 (0-30) | 13.44±5.34 (0-22) | 0.553 |
n: Number, RRD: Rhegmatogenous retinal detachment, SD: Standard deviation, PVR: Proliferative vitreoretinopathy, SB: Scleral buckling, PPV: Pars plana vitrectomy, IOP: Intraocular pressure