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. Author manuscript; available in PMC: 2016 Mar 2.
Published in final edited form as: Curr Protoc Mouse Biol. 2015 Mar 2;5(1):35–49. doi: 10.1002/9780470942390.mo140161

Figure 2. Fracture procedure.

Figure 2

A: The knee is maximally flexed and help using the thumb and index finger of the non-dominant hand. B: A 2-3 mm longitudinal incision is made centered over the knee. C: A subsequent incision is made medial to the patella, which extends into the quadriceps muscle and along the patella tendon to release the tissue. The patella is subluxated laterally. D: Exposure of the distal femur. E: Entry portal to distal femur created using 27-gauge needle in the center of the femoral groove. F: Insertion of femoral pin down the length of the medullary canal. G: This is cut flush with the distal femur. H: The extensor mechanism is placed back to its anatomic location. I, J: Demonstrates creation of closed mid-shaft femur fracture. K: Example of completed fracture.