The Influence of Patient-Related Factors and the Position of the Acetabular Component on the Rate of Dislocation after Total Hip Replacement*

Is the Dislocation Rate Higher after Bipolar Hemiarthroplasty in Patients with Neuromuscular Diseases?

“…In addition, lack of compliance with postoperative instructions can lead to improper positioning of the limb and inadequate myofascial tension can lead to instability of the hip. Trauma to the hip, such as a fall or slip, can cause a sudden dislocation of an optimally positioned total hip prosthesis [21]. The mechanism leading to dislocation in our group of patients might be because of muscle imbalance, with increased muscle tone and rigidity seen with Parkinson's disease, or cognitive dysfunction that reduces the patient's ability to comply with precautions designed to prevent dislocation.…”

“…Sierra et al [25] reported a high incidence of dislocation after bipolar HAs in patients with neuromuscular disease. Cognitive dysfunction from confusion, dementia, psychosis, or alcoholism is a reported risk factor for hip instability [21,33]. Woolson and Rahimtoola [33] used regression analysis of dislocation in the first 3 months postoperatively and found cognitive dysfunction was a major factor.…”

“…Woolson and Rahimtoola [33] used regression analysis of dislocation in the first 3 months postoperatively and found cognitive dysfunction was a major factor. Neuromuscular dysfunction has a positive association with dislocation [14,21]. In addition, lack of compliance with postoperative instructions can lead to improper positioning of the limb and inadequate myofascial tension can lead to instability of the hip.…”

High Dislocation Cumulative Risk in THA versus Hemiarthroplasty for Fractures

“…To assess cartilage wear we used the criteria of Baker et al [2]. Cup position was assessed according to the acetabular position angle [22].…”

Alcohol Use in Elective Total Hip Arthroplasty: Risk or Benefit?

“…Alcohol use independently predicts the occurrence of pneumonia, superficial surgical-site infection, wound disruption, and prolonged LOS after surgery [14]. Excessive alcohol consumption has been associated with complications after surgery [9,16]. However, Espehaug et al [7] in a matched case-control study reported the association of alcohol intake with revision risk to be J-shaped, where the lowest risk occurred among moderate drinkers and the highest risk among patients having a consumption of more than four units/week.…”