OBJECTIVE: To determine the depth that implants may be safely placed for repair of proximal femoral physeal fractures. STUDY DESIGN: Relationships were determined between the depth of the proximal femoral epiphysis (PFE) and the contralateral PFE, and the PFE and pubic bone width. ANIMALS OR SAMPLE POPULATION: 20 immature @entity235 cadavers. METHODS: Actual PFE depths were determined at the center of the physeal surface and at four other eccentric points. The contralateral intact @entity2096 and the width of the cranial aspect of the public bone were measured from radiographs. RESULTS: Mean ratios of actual central @entity2096 to radiographically measured (1) contralateral @entity2096 and (2) pubic bone width were 1.04:1, and 1.09:1, and ratios of actual eccentric PFE depths were 0.89:1 and 0.93:1. Body weight was not useful in estimating depth of the PFE. CONCLUSIONS: For the central epiphysis, pins may safely be placed a distance equal to 75% to 80% of the contralateral intact @entity2096 or pubic bone width, measured from a ventrodorsal radiograph, with minimal risk of penetration through the articular surface. Pins placed eccentrically may be safely driven a depth equal to 65% of the radiographically measured contralateral intact @entity2096 or pubic bone width. CLINICAL RELEVANCE: Estimating the safe depth of implant placement into the PFE avoids penetration of the articular surface.

Determination of proximal femoral epiphyseal depth for repair of physeal fractures in immature XXXX .

@entity235 :: ('9615', 'Species') :: ['dog'] @entity2096 :: ('MESH:D020428', 'Disease') :: ['PFE depth']
@entity235 :: (9615,Species) :: ['dogs']
