ArticleClinical biomechanics (Bristol, Avon)2018
The impact of hip implant alignment on muscle and joint loading during dynamic activities.
Article in Clinical biomechanics (Bristol, Avon), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06603831 (Randomized, Prospective and Multicenter Clinical Study for the Clinical Evaluation and Cost-effectiveness Analysis of 3D Digital Surgery in Traumatology and Orthopedic Surgery), which is not on this map. Cited by 5 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Randomized, Prospective and Multicenter Clinical Study for the Clinical Evaluation and Cost-effectiveness Analysis of 3D Digital Surgery in Traumatology and Orthopedic Surgery
Who cites it
5 citing papers in PubMed.
- A Comprehensive Literature Review for Total Hip Arthroplasty (THA): Part 2-Material Selection Criteria and Methods.Journal of functional biomaterials · 2025Review
- A comprehensive predictive model for postoperative joint function in robot-assisted total hip arthroplasty patients: combining radiomics and clinical indicators.Journal of robotic surgery · 2024Article
- The Use of Synthetic IMU Signals in the Training of Deep Learning Models Significantly Improves the Accuracy of Joint Kinematic Predictions.Sensors (Basel, Switzerland) · 2021Article
- Measurement of operative femoral anteversion during cementless total hip arthroplasty and influencing factors for using neck-adjustable femoral stem.Journal of orthopaedic surgery and research · 2021Article
- Simulated hip abductor strengthening reduces peak joint contact forces in patients with total hip arthroplasty.Journal of biomechanics · 2019Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
backgroundComponent alignment is an important consideration in total hip arthroplasty. The impact of changes in alignment on muscle forces and joint contact forces during dynamic tasks are not well understood, and have the potential to influence surgical decision making. The objectives of this study were to assess the impact of femoral head/stem and cup component placement on hip muscle and joint contact forces during tasks of daily living and to identify which alignment parameters have the greatest impact on joint loading.
methodsUsing a series of strength-calibrated, subject-specific musculoskeletal models of patients performing gait, sit-to-stand and step down tasks, component alignments were perturbed and joint contact and muscle forces evaluated.
findingsBased on the range of alignments reported clinically, variation in head/stem anteversion-retroversion had the largest impact of any degree of freedom throughout all three tasks; average contact forces 413.5 (319.1) N during gait, 262.7 (256.4) N during sit to stand, and 572.7 (228.1) N during the step down task. The sensitivity of contact force to anteversion-retroversion of the head/stem was 31.5 N/° for gait, which was similar in magnitude to anterior-posterior position of the cup (34.6 N/m for gait). Additionally, superior-inferior cup alignment resulted in 16.4 (4.9)° of variation in the direction of the hip joint contact force across the three tasks, with the most inferior cup placements moving the force vector towards the cup equator at the point of peak joint contact force.
interpretationA quantitative understanding of the impact and potential tradeoffs when altering component alignment is valuable in supporting surgical decision making.
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