Bilateral fibular fractures were conducted using previously described standard protocols[33 (link),34 (link)]. In brief, under isoflurane anaesthesia, a 5 mm skin incision was made over the fibula. Using microtenotomy scissors, mice received a bilateral transverse and non-comminuted fibular fracture at the midpoint of the fibula approximately 12 mm proximal to the calcaneal tuberosity. Skin incisions were closed using skin glue (3M™ Vetbond™ Tissue Adhesive, St. Paul, MN, USA). Immediately post-fracture, a 10 mm incision was made on the dorsal surface of mice in between the scapulae. Mini-osmotic pumps (ALZET® Model 1002, DURECT Corporation, CA, USA) were then subcutaneously inserted and incisions were closed using Reflex wound clips.