What is the most likely diagnosis for a 10-year-old male with a worsening limp and hip pain after a jumping accident?

The most likely diagnosis for the 10-year-old male with a worsening limp and hip pain after a jumping accident is slipped capital femoral epiphysis (SCFE). This condition occurs when the head of the femur slips at the growth plate due to weakness or abnormal stress on the hip joint, which can indeed be exacerbated by physical activity, such as jumping.

SCFE typically presents with symptoms like hip pain, limited internal rotation, and a noticeable limp. The age of the patient is significant, as the condition most commonly occurs in boys aged 10-16, particularly during a growth spurt. Given the history of a jumping incident, it’s plausible he could have sustained an acute exacerbation due to this threshold activity, aligning well with the symptoms observed.

In contrast, the other conditions listed typically present differently. Legg-Calve-Perthes disease, while also involving the hip in children, commonly presents with gradual onset of pain and may not be directly related to an acute injury. Transient synovitis generally shows a more sudden onset of hip pain after a viral infection and is usually self-limiting without significant limp worsening over time. Osgood-Schlatter disease primarily affects the knee, leading to pain at the