Relationship of Alignment and Tibial Cortical Coverage to Hypertrophic Bone Formation in Salto Talaris® Total Ankle Arthroplasty

Short-term Clinical and Radiographic Results of the Salto Mobile Total Ankle Prosthesis

“…9,29 Choi and Lee 9 observed heterotopic ossification in 31 of 90 ankles with a HINTEGRA implant. Recently, King et al 24 observed heterotopic ossification with the anterior incidence of 50% and 86% posteriorly in 107 patients who received the Salto Talaris TAA. To date, there is no information on heterotopic ossification with the Salto prosthesis.…”

Registry Data Trends of Total Ankle Replacement Use

“…One company has converted their successful mobilebearing uncemented total ankle replacement (Salto Mobile Prosthesis) to a fixed-bearing, cemented design (Salto Talaris Anatomic Ankle; available at: http://www.accessdata.fda.gov/cdrh_docs/pdf9/ K090076.pdf; accessed June 10, 2013). Although the mobile-bearing version has 10 to 15 years of follow-up data (59,60), the fixedbearing version available for use in the United States has only recently been reported regarding the range of motion at follow-up (61,62), hypertrophic bone formation about the tibial tray (63), and short-term follow-up data (64). It remains a matter of conjecture whether the fixed-bearing and mobile-bearing versions of this total ankle prosthesis will ultimately function similarly enough to draw parallel conclusions.…”

The Current Trend of Total Ankle Replacement

“…For the Salto Talaris total ankle implant, a high incidence of bony overgrowth occurs at the margins of the tibial tray. The frequency and amount of overgrowth were directly related to the amount of cortical coverage at the bone-implant interface [35]. Patients who underwent TAR with the INBONETM or Salto Talaris prosthesis demonstrated that they were able to walk faster, and they also exhibited an improvement in gait symmetry.…”

“…In addition, it has been noted that a relatively high percentage of these implants were inserted at an angle other than perpendicular to the anatomic axis of the tibia. Specifically, the implants were usually placed in varus and with a positive slope [35].…”