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Updated: Feb 19, 2026
An Efficient and Reproducible Protocol for Distraction Osteogenesis in a Rat Model Leading to a Functional Regenerated Femur
Published on: October 23, 2017
Neglected patella nonunion successfully treated after 8 years by quadriceps distractive lengthening with a spanning
Odysseas Paxinos1, Athanasios Karamitros1, Panagiotis Douras1
1Department of Orthopedics, 251 Hellenic Air Force Hospital, 3 P. Kanellopoulou Str, 11525, Athens, Greece.
Abstract:
Neglected patella non-unions are rare. Contraction of the quadriceps makes late repair extremely difficult. A case of distal patella pole fracture neglected for 8 years is presented. The patient was a hemiplegic young female unable to walk due to extensor mechanism deficiency with a 10 cm retraction of the patella proximal pole at her neurologically intact side. The quadriceps was lengthened using a spanning unilateral external fixation system and the fragments successfully united after trans-osseous suture repair. At 4-year follow-up the patient was independently ambulating without symptoms with a functional knee range of motion. Level of evidence IV.
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