Narrative Review of the Mechanism of Hip Prosthesis Dislocation and Methods to Reduce the Risk of Dislocation

18 June 2022 : Review article

Maciej Kostewicz^1ABEF*, Grzegorz Szczęsny

^1AEF, Wiesław Tomaszewski^2E, Paweł Małdyk^1E

DOI: 10.12659/MSM.935665

Med Sci Monit 2022; 28:e935665

Table 1 Summary of patient-dependent factors that predispose to implant dislocation.

Numbers\the section	Patients-dependent factors that predispose to THA dislocation
1.	Insubordinate, alcohol, drug abused – corresponds with brawls
2.	Patients with neurologic and psychiatric disorders, including epilepsy, dementia, disorientation, ataxia, impaired consciousness, coma and delusions. Also - paresis and nerve palsy affecting the lower limb that impairs muscular balance of the pelvic girdle
3.	Undertaking professional risky activities that promote injuries to the hip joint:
4.	Very active amateur sportsmen
5.	Bedridden patients that have an advanced muscular atrophy due to persistent disuse (lack of congruency of the hip joint)
6.	Lumbosacral pathology
7.	THA with low-diameter femoral head
8.	Technical errors in THA – inexperienced surgeon
9.	Advanced age (includes several of the factors mentioned above)
10.	Obesity (BMI >30 kg/m)