While total hip arthroplasty is considered a successful procedure, dislocation remains a serious complication as recurrent dislocations may require additional surgeries. Knowledge on dislocation events as they occur in vivo are limited, therefore researchers rely on experimental and computational methods. A custom MATLAB script and an experimental procedure utilizing a six-degree of freedom actuator were developed to further understand how various surgical considerations affect dislocation mechanics in total hip arthroplasty. Computationally, it was determined that impingement free range of motion is limited during internal rotation in flexion and during external rotation in extension. Experimentally, our results suggest that the posterior approach provides more stability to anterior dislocations as the soft tissue structures became taut sooner in the rotation. Additionally, we found that dual mobility total hip arthroplasty provided a greater resistive torque during an impingement event than conventional total hip arthroplasty.
","abstract_html":"<p>While total hip arthroplasty is considered a successful procedure, dislocation remains a serious complication as recurrent dislocations may require additional surgeries. Knowledge on dislocation events as they occur in vivo are limited, therefore researchers rely on experimental and computational methods. A custom MATLAB script and an experimental procedure utilizing a six-degree of freedom actuator were developed to further understand how various surgical considerations affect dislocation mechanics in total hip arthroplasty. Computationally, it was determined that impingement free range of motion is limited during internal rotation in flexion and during external rotation in extension. Experimentally, our results suggest that the posterior approach provides more stability to anterior dislocations as the soft tissue structures became taut sooner in the rotation. Additionally, we found that dual mobility total hip arthroplasty provided a greater resistive torque during an impingement event than conventional total hip arthroplasty.</p>","abstract_has_math":false,"creators":["Scinto, Michael"],"institution":null,"degree_name":"M.S.","degree_level":"Masters Thesis","degree_discipline":null,"degree_department":null,"school":null,"contributors":["Chadd W. Clary","Paul Rullkoetter","Davor Balzar"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-01-01T08:00:00Z","date_published":"2021-01-01T08:00:00Z","updated_at":"2026-07-24T02:02:45Z","subjects":["Biomechanics","Biomechanics and Biotransport","Biomedical Engineering and Bioengineering"],"languages":["en"],"rights":["Copyright is held by the author. User is responsible for all copyright compliance.
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"],"dc:subject":["Biomechanics","Biomechanics and Biotransport","Biomedical Engineering and Bioengineering"],"dc:title":["Dislocation Mechanics of Total Hip Arthroplasty: A Combined Experimental and Computational Analysis"],"thesis:degree_level":["Masters Thesis"],"thesis:degree_name":["M.S."]},"updated_at":"2026-07-24T02:02:45Z"}