In simple words: Partial physeal arrest means slowed bone growth in the right distal radius (the bone in your forearm on the thumb side of your wrist). It can make your arm shorter and cause a bump or bend in the bone. This usually happens because of injury to the growth plate but can also happen due to infection, poor blood supply, tumor, a genetic bone disorder, or radiation therapy.

Partial physeal arrest of the right distal radius, the lower end of the forearm bone on the thumb side, refers to bone growth retardation and shortening of the bone. This is typically caused by growth plate injury but can also result from infection, ischemia, tumor invasion, hereditary bone growth disorder, or radiation. The condition can lead to arm length discrepancy, bone bridge formation with deformity, and reduced muscle tone.

Example 1: A 10-year-old boy falls from his bicycle and injures his right wrist. Subsequent X-rays reveal a fracture involving the distal radial physis. Despite appropriate initial treatment, follow-up visits reveal premature closure of the growth plate, leading to a diagnosis of partial physeal arrest., A 15-year-old girl presents with progressive deformity of her right wrist. Imaging studies reveal a bone bridge across the distal radial physis, consistent with partial physeal arrest. Upon further investigation, it is discovered that she underwent radiation therapy for a childhood cancer affecting the wrist area., A 12-year-old child with a known hereditary bone growth disorder experiences gradual shortening of their right forearm. Physical exam and imaging confirm partial physeal arrest affecting the right distal radius.

Documentation should include details of the injury or underlying condition, physical exam findings (e.g., range of motion, limb length discrepancy), imaging reports (X-ray, MRI, CT, bone scan), and results of laboratory tests (e.g., calcium, growth hormone levels).