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Updated: Jan 4, 2026

A Reliable and Reproducible Critical-Sized Segmental Femoral Defect Model in Rats Stabilized with a Custom External Fixator
Published on: March 24, 2019
Circular external fixation as definitive treatment for open or comminuted femoral fractures: Radiologic and
Giovanni Lovisetti1, Rajesh Rohilla2, Karan Siwach3
1Senior Consultant, Orthopaedics and Traumatology Unit of the Menaggio Hospital, Italy.
Introduction:
Ring external fixation can be a definitive treatment of high energy femoral fractures. A retrospective analysis of outcomes is presented.
Materials And Methods:
23 patients with open or comminuted femoral fractures treated with circular external fixators were included. Mean age was 33 (range, 13-81) years. Lesions were classified according to AO/ASIF. 12 fractures were open. Mean follow up period has been 26.3, (range 20-144) months. The results were assessed according to the modified criteria of Association for the Study and Application of the Method of Ilizarov. Knee functional results were assessed with Hospital for Special Surgery knee scoring system.
Results:
22 fractures united primarily, one showed nonunion. Knee stiffness developed in two patients. No patient had deep pin tract infection. Bone results were quoted as excellent, good, fair and poor in 19, 1, 1 and 2. The functional results were excellent, good, and fair in 16, 6, and 1, on the basis of ASAMI criteria. Mean HSS knee score has been 90.1 (range 60-100).
Conclusion:
Circular external fixation can achieve reliable rates of union and good to excellent functional outcome in open or comminuted femoral fractures. A strict rehabilitation protocol was effective in preserving knee joint function.
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