A ragged break caused by twisting forces is a ...

A ragged break caused by twisting forces is a ...

• A. Spiral fracture
• B. Comminuted fracture
• C. Transverse fracture
• D. Greenstick fracture

Answer: (A)

When a bone is subjected to twisting forces, torque causes the fracture line to wrap around the shaft, producing a spiral pattern. The break is ragged because the twisting creates uneven shear along the bone, so the edges jag and the fracture winds around the bone rather than running straight across. This makes the spiral fracture the best match for a ragged break caused by twisting forces. In contrast, a transverse fracture is a straight break across the bone from direct impact, a comminuted fracture breaks the bone into many pieces from high-energy trauma, and a greenstick fracture is an incomplete bend-and-break typical in children.

When a bone is subjected to twisting forces, torque causes the fracture line to wrap around the shaft, producing a spiral pattern. The break is ragged because the twisting creates uneven shear along the bone, so the edges jag and the fracture winds around the bone rather than running straight across. This makes the spiral fracture the best match for a ragged break caused by twisting forces. In contrast, a transverse fracture is a straight break across the bone from direct impact, a comminuted fracture breaks the bone into many pieces from high-energy trauma, and a greenstick fracture is an incomplete bend-and-break typical in children.