The effect of preoperative planning method on recommended tibial tuberosity advancement cage size.

Objective: To determine if use of various commonly practiced tibial tuberosity advancement (TTA) preoperative planning methods leads to variable TTA cage size recommendations.

Study Design: Radiographic study.

Animals: Dogs (n = 14) with naturally occurring cranial cruciate ligament disease.

Comparison of femoral angulation measurement between radiographs and anatomic specimens across a broad range of varus conformations.

Objective: To determine if measurement of anatomic lateral distal femoral angle (aLDFA) from radiographs is valid across a broad range of femoral varus conformations.

Study Design: Radiographic and anatomic study.

Sample Population: Large breed canine cadavers (n = 5) and femora (n = 10).