Cerclage wires for osseous fixation are most appropriate for which fracture pattern?

Cerclage wires for osseous fixation are most appropriate for which fracture pattern?

• A. Simple transverse fractures
• B. Comminuted diaphyseal fractures
• C. Proximal metaphyseal fractures
• D. Long oblique and spiral fractures near a joint

Answer: (D)

Cerclage wires provide circumferential stabilization that is especially helpful when fracture lines are oblique and create shear, such as long oblique or spiral patterns. Near a joint, these fractures tend to gape and displace because the fragments can rotate or pull apart; wrapping a wire around the bone captures the pieces and converts some of the shear into compression when used with a plate, helping maintain reduction. This makes the fixation more stable in periarticular situations where screws alone may not hold small or difficult-to-reach fragments. Simple transverse fractures are typically well stabilized with plating and screws alone, and comminuted fractures involve multiple fragments that a single cerclage cannot adequately control.

Cerclage wires provide circumferential stabilization that is especially helpful when fracture lines are oblique and create shear, such as long oblique or spiral patterns. Near a joint, these fractures tend to gape and displace because the fragments can rotate or pull apart; wrapping a wire around the bone captures the pieces and converts some of the shear into compression when used with a plate, helping maintain reduction. This makes the fixation more stable in periarticular situations where screws alone may not hold small or difficult-to-reach fragments. Simple transverse fractures are typically well stabilized with plating and screws alone, and comminuted fractures involve multiple fragments that a single cerclage cannot adequately control.