Does a Staged Posterior Approach Have a Negative Effect on OTA 43C Fracture Outcomes?

Area of Science:

• Orthopedic surgery
• Trauma care
• Bone healing research

Background:

• Tibial pilon (OTA 43C) fractures are complex injuries requiring precise surgical reduction and fixation.
• The optimal surgical approach for achieving fracture union and articular congruity remains debated.
• Previous studies have not definitively compared single versus multiple surgical approaches for these fractures.

Purpose of the Study:

• To evaluate if multiple surgical approaches increase the risk of impaired fracture healing compared to a single approach for OTA 43C pilon fractures.
• To compare the quality of articular reduction achieved with single versus multiple surgical techniques.

Main Methods:

• Retrospective review of a prospective database from Level I and II trauma centers (2005-2011).
• Patients with OTA 43C pilon fractures were grouped by surgical approach: single (anterior-alone) versus multiple (posterior-anterior staged fixation).
• Postoperative CT scans assessed articular displacement; union rates and complications were correlated with the surgical strategy.

Main Results:

• Of 116 surgically treated patients, 95 had sufficient follow-up, with 24 nonunions.
• A significantly higher nonunion rate was observed with the staged posterior approach (40%) compared to the anterior-alone approach (19%) (P = 0.015).
• No significant difference in the quality of articular reduction (<1 mm, 1-2 mm, >2 mm displacement) was found between the two approaches.

Conclusions:

• Combined surgical approaches for tibial pilon fractures offer no proven advantage in articular reduction quality.
• The addition of a staged posterior approach may be associated with a significantly higher risk of nonunion.
• While articular reduction is critical, employing multiple approaches for fixation may introduce additional complications.