Early Failure in Total Ankle Replacements Due to Component Malposition: A Report of Two Cases

Intermediate-term Results of Mobile-bearing Total Ankle Replacement

“…18,19,47 Studies suggested that frontal or sagittal misalignment of the TAR components between themselves or with respect to the tibial axis could cause a high concentration of forces acting in the interfaces between metal and bone and in the polyethylene liner, accelerating polyethylene wear and the subsequent development of osteolysis. 17,21,23 With the numbers available, there were no significant differences in the position of the TAR components between patients with and without radiological evidence of osteolysis in the present study (Table 7). Similar results were found in the study of Yoon et al, 54 who investigated the incidence and characteristics of periprosthetic osteolytic lesions and their association with radiological and clinical outcomes after TAR.…”

Surgical procedures in patients with haemophilic arthropathy of the ankle

“…Intraoperative complications are not uncommon and may include malleolus fractures, injuries of neurovascular structures or injuries of tendons [54,55]. Additionally, technical errors involving the correct positioning of prosthesis components can also occur [55,61,62].…”

Insert Position in Three-Component Total Ankle Replacement

“…Only recently, two cases of early failure of total ankle replacements due to component malposition were published. 4 Therefore, the debate continues whether a three-component total ankle design is superior to a twocomponent design and whether postoperative results are comparable over time.…”