Trunnions and Modularity in Total Hip Arthroplasty: A Historical Review With Current Clinical Implications.
| Autor: | Vajapey SP; From the Department of Orthopedic Surgery, Rainier Orthopedic Institute, Puyallup, WA (Vajapey) and the Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA (Shah and Estok)., Shah VM, Estok DM 2nd |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of the American Academy of Orthopaedic Surgeons [J Am Acad Orthop Surg] 2023 Feb 15; Vol. 31 (4), pp. 189-197. Date of Electronic Publication: 2023 Jan 11. |
| DOI: | 10.5435/JAAOS-D-22-00498 |
| Abstrakt: | Trunnion in total hip arthroplasty refers to the interface between the neck of a femoral stem and the femoral head. Clinical complications arising from damage to this junction, whether it be due to mechanical wear, corrosion, or a combination, are referred to as mechanically assisted crevice corrosion (MACC), also commonly known as trunnionosis. With the use of modular hip prostheses, which help customize offset and leg length to an individual patient's anatomy, the incidence of MACC and revision due to MACC has increased in recent years. Although the cause of MACC is multifactorial, with patient factors and technique factors contributing to this condition, taper design and geometry, metallurgical properties of implants, and size mismatch of the bearing couple are some of the implant factors that have also been implicated in this clinical phenomenon. Understanding the history of taper design and geometry, the track record of older implants, and the rationale behind the development of current prostheses can help surgeons choose the right implants for their patients and accurately assess the pros and cons of new implants being introduced to the market each year. (Copyright © 2023 by the American Academy of Orthopaedic Surgeons.) |
| Databáze: | MEDLINE |
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