A Salter–Harris II tibial tuberosity avulsion fracture, treated surgically with a crossed pins construct. Salter–Harris II TTAF stands for a modified Watson–Jones type 4 TTAF fracture that propagates through the entire proximal tibial physis, starting at the anterior cortex and progressing all the way to the posterior cortex, with a posterior Thurston–Holland component of various sizes. A crossed pins construct is a fixation that captures the proximal fragment at its medial and lateral cortices and the distal fragment at its medial and lateral cortices. 1A and 1B: Preoperative, 2A and 2B: postoperative, 3A and 3B: following hardware removal X ray imaging studies..