Intra-articular risks of suprapatellar nailing.

Area of Science:

• Orthopedic Surgery
• Biomechanics
• Anatomy

Background:

• Tibial fractures are common, and surgical intervention is often required.
• Suprapatellar tibial nailing is a technique used for fracture fixation.
• Understanding the anatomical risks associated with this approach is crucial for patient safety.

Purpose of the Study:

• To evaluate the potential risks to local knee anatomy during suprapatellar tibial nailing.
• To quantify the proximity of the nail entry portal to critical intra-articular structures.

Main Methods:

• Fifteen fresh-frozen hemipelvis specimens underwent suprapatellar tibial nailing.
• Post-procedure assessment included examination of menisci, articular surfaces, anterior cruciate ligament (ACL) insertion, intermeniscal ligament, and fat pad for injuries.
• Measurements were taken from the nail entry portal to key anatomical landmarks.

Main Results:

• Minor injuries were observed: medial meniscus (6.7%), medial articular surface (13%), and intermeniscal ligament (20%).
• All specimens showed nail passage through the fat pad; no lateral structures or ACL insertion were injured.
• Distances from the entry portal to menisci ranged from 4.74±3.17 mm (medial) to 6.46±2.47 mm (lateral).

Conclusions:

• Suprapatellar tibial nailing presents risks to anterior knee structures, comparable to alternative nailing methods.
• The study highlights the need for further clinical research to establish the definitive role of suprapatellar nailing in tibial fracture treatment.