Short Answer 
The patient’s injury shows significant pain and crepitus after a high-impact fall, indicating a likely fracture. The mechanism involved a fall from a height, resulting in a vertical shear fracture that disrupts the pelvic ring and may stretch or tear surrounding ligaments, particularly affecting treatment and rehabilitation.
Identify the Nature of the Injury
The patient’s injury is characterized by significant pain and crepitus after experiencing a fall. This combination of symptoms signals a serious injury, particularly occurring after a high-impact event such as a jump. Recognizing these signs helps in narrowing down the possible types of fractures that may have resulted from the incident.
Understand the Mechanism of Injury
The mechanism of injury involved a fall from a height, specifically when the patient landed on their right foot from a third story jump. This type of fall applies a strong vertical force that can lead to disruptions in the pelvic region. In such cases, a vertical shear fracture is likely due to the upward transmission of force through the leg, causing profound effects on the pelvic structure.
Assess the Resulting Injuries
A vertical shear fracture typically results from the high-impact force causing misalignment of the pelvic ring. This injury often leads to excessive stretching or tearing of the surrounding ligaments, particularly the sacroiliac ligaments. Understanding these outcomes is crucial for determining the appropriate treatment and rehabilitation for the injury.