Table 1.
Summary of the patient demographic data in relation to the diagnostic subgroups.
| Patient characteristics | Number (%) of patients or mean when specified | |||
|---|---|---|---|---|
| DDwoR-SO (n = 10) | DDwoR-DO (n = 10) | DDwR (n = 9) | Total (n = 29) | |
| Gender | ||||
| Female | 10 (100) | 9 (90) | 6 (66) | 25 (86) |
| Male | 0 (0) | 1 (10) | 3 (33) | 4 (14) |
| Age (years) | ||||
| Mean ± SD | 46.5 ± 11.7 | 41.4 ± 20.3 | 43.1 ± 10.4 | 43.7 ± 14.6 |
| (Range) | (32–63) | (20–68) | (27–55) | (20–68) |
| Previous trauma | ||||
| Yes | 5 (50) | 0 (0) | 1 (11) | 6 (21) |
| No | 4 (40) | 10 (100) | 8 (89) | 22 (76) |
| N.s. | 1 (10) | 0 (0) | 0 (0) | 1 (3) |
| Symptom duration (months) | ||||
| Mean ± SD | 17.4 ± 10.6 | 11.9 ± 9.3 | 27.5 ± 28.7 | 18.4 ± 18.1 |
| Type of operative intervention | ||||
| Arthroscopy | 10 (100) | 9 (90) | 0 (0) | 19 (66) |
| Discectomy | 0 (0) | 1 (10) | 9 (100) | 10 (34) |
| Operative intervention outcome | ||||
| Successful | 4 (40) | 6 (60) | 5 (55) | 15 (52) |
| Good | 5 (50) | 3 (30) | 2 (22) | 10 (34) |
| Intermediate | 1 (10) | 1 (10) | 2 (22) | 4 (14) |
| Deteriorated | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
Abbreviations: DO, delayed onset; DDwoR, discdisplacement without reduction; DDwR, disc displacement with reduction; N.s., not specified; SD, standard deviation; SO, sudden onset.