PediatrOS™ MC-Subtalar™ II - Merete USA
kindlicher Knick-Senkfuß, Schrauben-Arthrorise, Fußchirurgie, Pisani, Weiterentwicklung, Korrektur, Kinderorthopädie, Merete, Pediatros, Subtalar, Re-Design, Progredierende mediale Protrusion des Talus, Schmerzen M. Tibialis posterior
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Surgical Technique E-IFU

MC-Subtalar™ II


To correct calcaneus valgus

The MC-Subtalar™ II screw system is for the correction of flexible flat feet in children (6 to < 12 years of age) and adolescents (12 to < 13 years of age) through a subtalar extra-articular screw arthroereisis. It is intended to block medial and plantar pronation of the talus with a cancellous bone screw.

Technical Specifications
  • Lengths: 25 mm, 30 mm, 35 mm; head diameters of 6 mm, 8 mm and 10 mm
  • Material: Stainless steel (X2CrNiMo)
  • Screw inserted with a Torx (T20 star drive with), self-locking feature. Facilitated insertion through a self-drilling and self-tapping screw tip. Pilot drill usage optional
  • Cannulated for guided insertion using a 1.6 mm diameter K-wire
  • Screws are self-tapping/self-drilling
  • Hexagon shaft for intraoperative correction of valgus/varus (over or under corrections) after the screw head is interlocked underneath the Processus lateralis
  • Adjustment of anatomical angles with optimal ease-of-use
  • Joint surfaces remain unaffected
  • No post-operative rest period necessary. Partial weight-bearing without pain after a few days
  • Different screw head sizes
  • Reduced implant-associated complication rates such as dislocation, migration and failure compared to sinus-tarsi implants
  • Flexible flat feet in children and adolescence
  • Progressive medial talus protrusion
  • Loss of longitudinal arch
  • Pain along the Tibialis posterior
  • Age > 6 years, after conservative treatment did not result in flat foot correction
  • Age < 13 years, while the deformity may be corrected manually
Radiographs (Coming Soon)
Articulated Flat Foot, Foot Surgery, Pediatric Orthopedics, Screws, Subtalar Arthrodesis