Figure 1.

A Salter–Harris II tibial tuberosity avulsion fracture, treated surgically with a Proximal Screw Technique (PST). 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 PST is a fixation that captures the proximal fragment at its anterior cortex, with or without the posterior cortex fixation, and captures the distal fragment at its cancellous bone only. 1A and 1B: Preoperative, 2A and 2B: intraoperative: 3A and 3B: postoperative X ray imaging studies.