Seventy-two female Sprague-Dawley rats underwent a 5 mm critical-sized femoral segmental defect followed by stabilization with a custom-made unilateral external fixator. Following femoral defect generation, absorbable type I bovine collagen sponges were loaded either with 50 ug GDF5wt or 50 ug GDF5N...
ORGANISM(S): Rattus norvegicus
