Assessment of the Safety Pin Tie In (SPTI) external skeletal fixator in three Pediatric Feline and Canine Humeral and Femoral Fractures

The Safety Pin Tie In, with its simplified design, appears as a promising, minimally invasive option for managing humeral and femoral fractures in lightweight, growing cats and dogs. It provides adequate biomechanical stability despite the absence of a proximal transfixion pin, while adhering to the principles of biological osteosynthesis. The technique minimizes surgical trauma, reducing muscle interference, and preserving the callus environment critical for healing.  The use of the SPTI could offer a practical alternative to elastic plate fixation for selected cases, although further studies are needed to validate these findings.