Radiocapitellar joint stability with bipolar versus monopolar radial head prostheses

Monobloc radial head prostheses in complex elbow injuries: results after primary and secondary implantation

“…Despite predominantly good clinical results, dislocation of components, implant loosening, overstuffing and radiocapitellar arthritis regularly lead to removal and revision. Recent biomechanical testing showed a higher instability in the bipolar design compared to the monopolar design and the uninjured radial head, especially in cases of severe soft tissue damage [6,14].…”

Partial allograft replacement of the radial head in the management of complex fracture-dislocations of the elbow

“…20 Partial radial head treatment may be an alternative to replacement of the head, which is now recommended by many authors for these cases. 10,17,18,26,27 This study does not address the relative advantages and disadvantages of partial radial head allograft compared with prosthetic radial head replacement.…”

Elbow Kinematics After Radiocapitellar Arthroplasty

“…Although a bipolar implant potentially avoids or mitigates radiocapitellar maltracking, it could come at the expense of decreased ability to resist rotational instability. 19 The radial head prosthesis employed in this study was part of a commercially available total elbow system, but the optimal design of a radial head prosthesis to be used in conjunction with a capitellar component requires further study. We noted no significant differences in valgus angulation when the forearm was pronated A, C (P ϭ .07-.20).…”