Influence of prosthetic design on radiocapitellar concavity-compression stability

The Effect of Prosthetic Radial Head Geometry on the Distribution and Magnitude of Radiocapitellar Joint Contact Pressures

“…Greater radiocapitellar stability has also been linked to deeper articulating dish depths. 20 In previous studies using polysiloxane molding for contact area measurement, the reported areas of contact were shown to decrease with Evolve RH implants 15 and Judet prosthesis (Tornier) 21 from native radiocapitellar articulation. Comparisons made between the 2 studies as concluded by Moungondo et al 21 should be taken with caution because differences could be from separate experimental models or the high standard deviation, 5 mm 2 , associated with area calculation from polysiloxane molds.…”

The Biomechanical Effect of Prosthetic Design on Radiocapitellar Stability in a Terrible Triad Model

“…Another recent investigation showed that the articular dish geometry of a monopolar implant, particularly the depth and radius of curvature, can significantly influence the implant's contribution to radiocapitellar stability. 16 Recurrent subluxation and instability are recognized complications after complex elbow injuries, 17 and an inadequately stabilized joint could necessitate a complex revision surgery.…”

Effect of Radial Head Implant Shape on Joint Contact Area and Location During Static Loading

“…6,8,9 Another group of axisymmetric implants aims for secure stem fixation, most commonly with uncemented ingrowth stems. 6 When anatomic asymmetrical designs are used, it is essential that they be positioned and fixed in the correct location to ensure proper joint alignment and hence optimize radiocapitellar contact.…”