Defects in knee articular cartilage (AC) can cause pain and disability and present the clinician with an extremely challenging clinical situation. This article describes the most up-to-date surgical techniques that aim to repair and/or regenerate symptomatic focal defects in AC, which include arthroscopic debridement, microfracture bone marrow stimulation and autologous osteochondral allografti...

The osseointegration rate of implants is related to their composition and surface roughness. Implant roughness favors both bone anchoring and biomechanical stability. Osteoconductive calcium phosphate (Ca-P) coatings promote bone healing and apposition, leading to the rapid biological fixation of implants. It has been clearly shown in many publications that Ca-P coating accelerates bone formati...

We study a repairable system with Markovian deterioration and imperfect repair, carried out at xed times t = 1; 2; ::: and look for optimal strategies under certain conditions. Two optimality criteria are considered: expected discounted cost and long-run average cost. Conditions are found under which the optimal policy is a control-limit policy as used by Derman 4] or Ross 13]. We explicitly ex...

We read with great interest the article by Montross et al1Montross B.C. O'Brien-Irr M.S. Koudoumas D. al.The selection of patients for ambulatory endovascular aneurysm repair elective asymptomatic abdominal aortic aneurysm.J Vasc Surg. 2020; 72: 1347-1353Google Scholar entitled “The aneurysm.” Percutaneous strategy is preferred treatment modality in current practice aneurysms low mortality and ...