The safest definitive surgical approach for an isolated posterior wall acetabular fracture with marginal impaction and associated posterior hip dislocation (reduced urgently) is:

• A Ilioinguinal approach
• B Modified Stoppa approach
• C Triradiate approach
• D Kocher-Langenbeck (KL) posterior approach ✓

Explanation

Posterior wall fractures are the most common acetabular fracture type. The Kocher-Langenbeck posterior approach provides direct access to the posterior wall, posterior column, and retroacetabular surface with excellent visualisation of the articular impaction fragments. Marginal impaction requires elevation and bone grafting, which is performed through this approach. The ilioinguinal and Modified Stoppa approaches access anterior structures (anterior column, quadrilateral plate) and cannot visualise the posterior wall. The triradiate (extended) approach is reserved for complex combined anterior-posterior fractures requiring extensile exposure but carries higher risk of heterotopic ossification and AVN.

Reference: Maheshwari Essential Orthopaedics, 6th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.