Mid-term outcomes of 77 modular radial head prostheses

Abstract

Bipolar and press-fit RHA gives unsatisfactory mid-term outcomes in the treatment of acute fractures of the radial head or their sequelae. The outcome may vary according to the design of the implant. The rate of re-operation during the first three years is predictive of the long-term survival in tight-fitting RHAs. Cite this article: 2017;99-B1197-1203.

Short to midterm outcomes of one hundred and seventy one MoPyC radial head prostheses: meta-analysis

“…Malalignment of the proximal radius with respect to the capitellum was not taken into account during assessment of radiocapitellar instability among MoPyC devices. Furthermore, overstuffing, which plays an important role in radiocapitellar instability (posterior subluxation tendency), could not be determined [33,47]. The influence of implant malposition, particularly overstuffing, on the rate of radiocapitellar instability could not be assessed in the present study.…”

“…The rate of complications was low at 12.9% and consisted of three (1.7%) intra-operative complications as well as 19 Gauci et al [16] Sarris et al [44] Ricón et al [42] Lamas et al [ [11,14,30,32,33,50]; additionally, tight-fitting implants may be more prone to painful loosening [21,33]. However, the two main failure modes affecting MoPyC implants are (intra)prosthetic dislocation (9; 5.3%) ( Fig.…”

Radial head arthroplasty: a historical perspective

“…After 2000, multiple RHP designs were available for the treatment of similar injuries (Fig. 4, Table 1); with no significant evidence to support the use of one implant over another [10,12,51,52]. More recently, a classification system was devised to describe the four main reasons for re-operation after RHA: painful loosening, stiffness, humero-radial conflict, and instability.…”

“…The study of these primary reasons for failure triggered rapid evolution in the indications for RHA with each individual prosthesis. Painful loosening, as defined by O'Driscoll and Herald [53], is the main indication for re-operation after RHA [12,[51][52][53][54]. Despite our limited understanding of the biomechanics, fixation method seems to play a pivotal role in RHA survivorship [10,52,55].…”

Radial head arthroplasty with bipolar uncemented endoprothesis with metal – metal bearing

“…В связи с этим в последние годы чаще используют биполярные модульные бесцементные эндопротезы ГЛК, благодаря возможности уменьшить критические напряжения, возникающие в шейке лучевой и на хряще головочки плечевой костей [24][25][26][27][28].…”