Adverse Reactions to Metal Debris in Metal-On-Polyethylene Total Hip Arthroplasty Using a Titanium-Molybdenum-Zirconium-Iron Alloy Stem

Catastrophic Femoral Head-Stem Trunnion Dissociation Secondary to Corrosion

“…These include factors related to implant design, such as trunnion-taper angular mismatch, high-offset implants, trunnion diameter, neck angle, modular surface contact area, and dissimilar metals; patient factors, such as a high body mass index (BMI) or increased activity level; and surgical factors, such as damaged modular surfaces or inappropriate impaction forces [1][2][3][4] . Several authors have reported revision arthroplasty due to corrosion and adverse local tissue reactions 5,6 . Severe trunnion corrosion, or deterioration of the femoral neck, can also lead to femoral head dissociation and catastrophic and sudden implant failure following primary total hip arthroplasty.…”

Femoral Head-Trunnion Dissociation in Metal-on-Polyethylene Total Hip Arthroplasty – A Unique Case Report

“…In a paper by Kirin et al, the authors postulate that the impaction of the femoral head or cyclic loading removes the oxide passivation layer creating crevices in the taper junction [6]. This allows for fluid ingress within the taper with depletion of oxygen and ionic changes ultimately leading to the formation of hydrochloric acid and resulting corrosion.…”

Клініко-Патогенетична Значущість Остеоасоційованих Мікроелементів При Хворобах Суглобів. Повідомлення ІІ. Мікроелементоз У Волоссі

“…При всех изученных заболеваниях суставов установлены нарушения микроэлементного состава крови, которые участвуют в патогенетических механизмах артритов и определяют их клиническое течение. Микроэлементоз рассматривается как одно из важных клинико-патогенетических составляющих дегенеративно-воспалительных болезней суставов [6,11,17].…”