Dislocation and dissociation of bipolar hip hemiarthroplasty

Moriarity, Andrew; Ellanti, Prasad; Talha, Samir; McKenna, J

doi:10.1136/bcr-2015-210282

Cited by 6 publications

(13 citation statements)

References 8 publications

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“…Dissociation is rare and has been reported in only a few case reports [4,7,8,13,16]. The reasons for disassociation after hemiarthroplasty have been reported as component selection and alignment, surgical technique, and patient factors [4,7,8,11,13,15,16]. Varley and Parker [25] reported that dissociations accounted for 12% of all dislocations in bipolar prostheses.…”

Section: Discussionmentioning

confidence: 99%

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What Are the Risk Factors for Dislocation of Hip Bipolar Hemiarthroplasty Through the Anterolateral Approach? A Nested Case-control Study

Li¹,

Ren²,

Liu³

et al. 2016

Clinical Orthopaedics &Amp; Related Research

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Background Hip dislocation after treatment of a femoral neck fracture with a hemiarthroplasty remains an important problem in the treatment of hip fractures, but the associations between patient factors and surgical factors, and how these factors contribute to dislocation in patients who have undergone bipolar hemiarthroplasty through an anterolateral approach for femoral neck fracture currently are only poorly characterized. Questions/purposes We evaluated patients with bipolar hemiarthroplasty dislocation after surgery for femoral neck fracture treated through an anterolateral approach and asked: (1) What are the frequency, characteristics, and risk factors of bipolar hemiarthroplasty dislocations? (2) What are the frequency, characteristics, and risk factors of bipolar hemiarthroplasty dissociations?

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Section: Discussionmentioning

confidence: 99%

“…We found little information regarding this rare and serious complication except for a few case reports [4,7,8,13,16].…”

Section: Introductionmentioning

confidence: 95%

What Are the Risk Factors for Dislocation of Hip Bipolar Hemiarthroplasty Through the Anterolateral Approach? A Nested Case-control Study

Li¹,

Ren²,

Liu³

et al. 2016

Clinical Orthopaedics &Amp; Related Research

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“…Dislocation of the hip joint after THA is one of the major side complications (2% - 4% after primary total hip arthroplasty) [2,39] and its causes have been studied previously [5,7–20,39–42]. Among patient related factors, the presence of neuromuscular conditions, such as cerebral palsy, muscle dystrophy, dementia and Parkinson’s disease, is one of the main risk factors [39,43]. More dislocations were found with patients older than 80 years [43], patients with a femoral neck fracture as the primary diagnosis [40,42] and patients with an ASA (American Society of Anesthesiologists) score of 3 or 4 [40].…”

Section: Discussionmentioning

confidence: 99%

“…Among patient related factors, the presence of neuromuscular conditions, such as cerebral palsy, muscle dystrophy, dementia and Parkinson’s disease, is one of the main risk factors [39,43]. More dislocations were found with patients older than 80 years [43], patients with a femoral neck fracture as the primary diagnosis [40,42] and patients with an ASA (American Society of Anesthesiologists) score of 3 or 4 [40]. Among procedure related factors, the measured parameters of component positions, a cup inclination out of the range of 40° ± 10°, a cup anteversion of less than 10° or more than 35°, a stem anteversion out of the range of 14.8° ± 6,01° and a height of hip rotation center outside the range of 2.16 mm ± 9.11 mm, increased the risk of dislocation [8,9,40].…”

Section: Discussionmentioning

confidence: 99%

Hip stress distribution - Predictor of dislocation in hip arthroplasties. A retrospective study of 149 arthroplasties

et al. 2019

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Dislocation after hip arthroplasty is still a major concern. Recent study of the volumetric wear of the cup has suggested that stresses studied in a one-legged stance model could predispose arthroplasty dislocation. The aim of this work was to study whether biomechanical parameters of contact stress distribution in total hip arthroplasty during a neutral hip position can predict a higher possibility of the arthroplasty dislocating. Biomechanical parameters were determined using 3-dimensional mathematical models of the one-legged stance within the HIPSTRESS method. Geometrical parameters were measured from standard anteroposterior X-ray images of the pelvis and proximal femora. Fifty-five patients subjected to total hip arthroplasty that later suffered dislocation of the head and, for comparison, ninety-four total hip arthroplasties that were functional at least 10 years after the implantation, were included in the study. Arthroplasties that suffered dislocation had on average a 6% higher resultant hip force than the control group (p = 0.004), 11% higher peak stress on the load-bearing area (p = 0.001) and a 50% more laterally positioned stress pole (p = 0.026), all parameters being less favorable in the group of unstable arthroplasties. There was no statistically significant difference in the gradient index or in the functional angle of the weight bearing. Our study showed that arthroplasties that show a tendency to push the head out of the cup in the representative body position—the one-legged stance—are prone to dislocation. An unfavorable resultant hip force, peak stress on the load bearing and laterally positioned stress pole are predictors of arthroplasty dislocation.

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“…Bipolar hip hemiarthroplasty for subcapital neck of femur fractures is a commonly performed procedure [ 1 ]. Dislocation after bipolar hip hemiarthroplasty is one of the serious complications, which not only combines the problem of difficult reduction but also may lead to increased mortality and morbidity in patients [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Preprosthesis fracture of femoral and loosening of the femoral prosthesis during closed reduction of hip dislocation: A case report

Zeng

Qiu

Lan

et al. 2020

International Journal of Surgery Case Reports

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Highlights This is the first reported case of a periprosthetic fracture of femoral and loosening of femoral prosthesis caused by closed reduction. Closed reduction leads to preprosthesis fracture of femoral and loosening of femoral prosthesis is a complex complication that requires operative treatment. Closed reduction should be performed gently to avoid this condition. If this happens, a high-resolution CT examination should be performed immediately to evaluate the fracture and the rotation of the prosthesis. In the case of dislocation after bipolar hip hemiarthroplasty in patients with Alzheimer's disease, we hypothesize that early wearing hip joint fixation to limit squat might help prevent this condition.

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Dislocation and dissociation of bipolar hip hemiarthroplasty

Cited by 6 publications

References 8 publications

What Are the Risk Factors for Dislocation of Hip Bipolar Hemiarthroplasty Through the Anterolateral Approach? A Nested Case-control Study

What Are the Risk Factors for Dislocation of Hip Bipolar Hemiarthroplasty Through the Anterolateral Approach? A Nested Case-control Study

Hip stress distribution - Predictor of dislocation in hip arthroplasties. A retrospective study of 149 arthroplasties

Preprosthesis fracture of femoral and loosening of the femoral prosthesis during closed reduction of hip dislocation: A case report

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