K-wire Migration Following Acromioclavicular Joint Fixation: A Case Report

Area of Science:

• Orthopedic Surgery
• Trauma Management
• Vascular Surgery

Background:

• Kirschner wires (K-wires) are frequently used for temporary bone fracture fixation, especially in pediatric cases.
• K-wire use carries inherent risks, including mechanical failure (breakage) and unintended movement (migration).
• Complications from K-wire migration can be severe, impacting adjacent structures.

Purpose of the Study:

• To report a rare case of K-wire migration causing a pseudoaneurysm in an adult patient.
• To highlight the potential for delayed, life-threatening complications following K-wire fixation.
• To emphasize the importance of surgical technique and follow-up protocols.

Main Methods:

• Case report of a 67-year-old patient with acromioclavicular joint fixation using K-wires.
• Identification of a broken and migrated K-wire fragment in the neck region nine months post-surgery.
• Surgical intervention for pseudoaneurysm repair and K-wire fragment removal.

Main Results:

• A K-wire fragment migrated to the neck, causing a pseudoaneurysm.
• The pseudoaneurysm ruptured and required surgical repair.
• The migrated K-wire fragment was successfully removed.

Conclusions:

• K-wire migration can lead to critical vascular complications such as pseudoaneurysms.
• Adherence to the Tension Band Wiring (TBW) technique is crucial.
• Prompt removal of fixation devices and regular radiographic monitoring are vital for patient safety.