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Scaphoid pseudoartrosis with humpback deformity is a complex pathology that if not treated promptly can lead to an advanced deformity with collapse of the carpus producing a significant deterioration in wrist function. At present, open reduction of the deformity using structural bone graft is considered the gold standard of treatment. The aim of the present study is to describe a surgical technique of percutaneous reduction with arthroscopic assistance using non-structural bone graft for scaphoid non-union with humpback deformity. We present a case series of patients treated with the proposed technique. Materials and methods Retrospective study of a case series of patients diagnosed with scaphoid pseudarthrosis with humpback deformity treated with the proposed technique. We describe the surgical technique. We used STATA 15 for the statistical analysis and Wilcoxon test for non-parametric variables. Results 11 male patients, with an average age of 23.4 years, completed an average follow-up of 12months. Bone healing was confirmedwith Computed Tomography in an average time of 9.1 weeks in all of our patients. All patients improved their range of mobility and radiographic measurements significantly and all improved in the DASH functional test (p1⁄40.0033). Discussion We describe a technique of percutaneous reduction with arthroscopic assistance using non-structural graft to correct scaphoid non-union with humpback deformity. We found good clinical results and high union rate in all the patients of our series. Similar to what is found in international literature, we believe that this technique allows a partial correction of carpal anatomy and favors bone consolidation by having the advantages of a minimally invasive technique. Keywords

Manejo Artroscópico de Pseudoartrosis de Escafoides con Deformidad en Joroba: Técnica Quirúrgica y Serie de Casos