Browsing by Author "Martin Oliva, X"
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- An Anatomical Study About the Arthroscopic Repair of the Lateral Ligament of the AnklePublication . Torrinha Jorge, J; Mota Gomes, T; Martin Oliva, XBackground: The purpose of this anatomical study to was to determine the relationship of the structures involved in the arthroscopic repair of the anterior talofibular ligament. Methods: Dissection of fifteen lower leg cadaveric specimens was made and distances in the anterior direction from the reference-point at the lateral malleolus origin of the anterior talofibular ligament were measured, to the talar insertion of the ligament, to the superficial peroneal nerve at 60° and 90° in relation to the lateral malleolus axis in the sagittal plane, and to the inferior extensor retinaculum. Results: The mean±SD distance to superficial peroneal nerve from the reference-point was 25±6 (range 17-35) mm at 60°, and 32±9 (range 24-48) mm at 90° in relation to the lateral malleolus axis. The mean±SD distance to the inferior extensor retinaculum was 20±5 (range 14-29) mm. The mean±SD length of the anterior talofibular ligament was 21±4 (range 13-29) mm. Conclusions: The superficial peroneal nerve demonstrated the greatest variance in its anatomy. An accessory incision to include the inferior extensor retinaculum in the repair should not surpass the 22mm distance from the lateral malleolus in the anterior direction, due to the risk of damaging the nerve.
- Peri-Prosthetic Bone Cysts After Total Ankle Replacement. A Systematic Review and Meta-AnalysisPublication . Arcângelo, J; Guerra-Pinto, F; Pinto, A; Grenho, A; Navarro, A; Martin Oliva, XBackground: Periprosthetic cystic osteolysis is a well-known complication of total ankle replacement. Several theories have been proposed for its aetiology, based on individual biomechanical, radiological, histopathology and outcome studies. Methods: Studies that met predefined inclusion/exclusion criteria were analysed to identify literature describing the presence of peri-prosthetic ankle cystic osteolysis. Quantitative data from the selected articles were combined and statistically tested in order to analyse possible relations between ankle peri-prosthetic bone cysts and specific implant characteristics. Results: Twenty-one articles were elected, totalizing 2430 total ankle replacements, where 430 developed peri-prosthetic cystic osteolysis. A statistically significant association (P<.001) was found between the presence of bone cysts and non-anatomic implant configuration, hydroxyapatite-coating, mobile-bearing and non tibial-stemmed implants. No significant association existed between the type of constraining and the presence of cysts (P>.05). Conclusions: Non-anatomic, mobile-bearing, hydroxyapatite-coated and non tibial-stemmed total ankle replacements are positively associated with more periprosthetic bone cysts.