Biomechanical Evaluation of a Minimally Invasive Fixation Method for Length Unstable Limb Injuries.

INFIX instrumentation has provided an alternative treatment option for anteriorly unstable pelvic injuries. In this study, we explore the biomechanical feasibility of using an INFIX construct in an unstable longbone model and present a unique clinical case of its use. The external fixation, locked plate and spinal implant constructs (n = 5 each) were applied to lengthunstable fracture models and tested under various loads.

Reliability of radiographic measures in infants with clubfoot treated with the Ponseti method.

Purpose: The aim of this study was two-fold: (1) to determine if radiographic measures can be reliably made in infants being treated with the Ponseti method and (2) to document radiographic changes before and after Achilles tenotomy.

Methods: A retrospective radiographic and chart review was performed on children with clubfoot treated by the Ponseti method at a single institution over a 10-year period. Five independent reviewers measured a series of angles from a lateral forced dorsiflexion radiograph taken prior to and following Achilles tenotomy.