Dorsal dislocations are more common than volar dislocations, and are often seen in ball-handling athletes.
Anterior dislocation is more common and clinically less severe.
Anterior sternoclavicular dislocation is more common and easily detectable, as it is palpable (Fig. 26).
In high-energy injuries from road-traffic accidents or sports, posterior hip dislocation is more common than the anterior [1].
It is possibly an effect of its small CCD angle, the head-to-neck ratio, and/or the design of the cup rather than its straight tapered collarless stem, as stem revision after recurrent dislocation is more common for the Exeter prosthesis than for the Lubinus and the Spectron (Tables 4, 6, and 8 ), suggesting that correct stem placement is more difficult.
Technical errors such as instability, fractures, malaligment, and dislocation as the reason for revision were more common in the lower-volume groups (16 21%) than in the highest-volume group (7.7%).
10 patients (12%) had a dislocation, which was more common in the PL group (9 cases) than in the DA group (1 case) (p = 0.02) (Table 2).
However, a recent retrospective cohort analysis by Mansi et al. [ 29] concluded that further adverse event studies are required, based on their finding that musculoskeletal conditions, arthropathies, injuries (dislocations, strains, and sprains), and pain are more common in statin users than in non-users.
The ALPSA (anterior labro-ligamentous periosteal sleeve avulsion) lesion (Fig. 2d) has also been termed "medialized Bankart lesion" and is more common in patients with recurrent than with first-time traumatic dislocations of the shoulder [ 14, 30].
