Table 1.
Patient demographics
| Patients with dislocation (n = 34) | Controls (n = 96) | |
|---|---|---|
| Age in yearsa | 78.5 (53–95) | 78.2 (48–97) |
| Genderb | ||
| Male | 7 (21) | 27 (28) |
| Female | 27 (79) | 69 (72) |
| BMIa | 24.3 (16.2–40.0) | 24.2 (17.2–35.2) |
| Sideb | ||
| Left | 18 (53) | 51 (53) |
| Right | 16 (47) | 45 (47) |
| Diseasesb | ||
| Dementia | 7 (21) | 23 (24) |
| Alcoholism | 4 (12) | 6 (6) |
| Living conditionsb | ||
| Home | 25 (74) | 65 (68) |
| Assisted living | 9 (26) | 31 (32) |
| Use of walking aidsb | 12 (35) | 43 (45) |
| Time from arrival to surgery hoursa | 39.4 (2.9–131.3) | 34.8 (2.2–141.2) |
| Surgery duration minutesa | 91 (25–236) | 88 (43–200) |
| Time of surgeryb | ||
| Working hours (8 a.m. to 3 p.m.) | 23 (68) | 64 (67) |
| Outside working hours (3 p.m. to 8 a.m.) | 11 (32) | 32 (33) |
| ASA classb | ||
| 1 and 2 | 6 (18) | 24 (25) |
| 3 and 4 | 28 (82) | 72 (75) |
| Component sizea | ||
| Head (mm) | 47 (42–58) | 47 (42–56) |
| Stem | 7.7 (5.0–12.5) | 7.7 (5.0–12.5) |
BMI body mass index, ASA American Society of Anesthesiologists
aValues gives as mean with range in parentheses.
bValues represent number of patients with percentage of total given in parentheses.