IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, Milan, Italy
Fondazione Livio Sciutto Onlus, Campus Savona - Università degli Studi di Genova, Via Magliotto 2, Savona, Italy
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IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, Milan, Italy
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Fondazione Livio Sciutto Onlus, Campus Savona - Università degli Studi di Genova, Via Magliotto 2, Savona, Italy
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defects need to be addressed. Although more severe bone loss patterns have variable amounts of diaphysis remaining, the femoral revision aims to obtain a proper primary stability of the stem with a more proximal fixation as possible to preserve and if
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solutions in adequately addressing extensive bone defects and achieving stable fixation ( 19 , 20 ). Many patients face the risk of severe bone loss or PD due to repeated acetabular revision surgeries ( Fig. 1 ) ( 4 ). However, it is possible to achieve
IRCCS Galeazzi Orthopedic Institute, Milan, Italy
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IRCCS Galeazzi Orthopedic Institute, Milan, Italy
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Introduction Bone loss is a major concern of revision total hip arthroplasty (THA). While on the femoral side the problem is commonly solved by passing the defect through long stems seeking distal fixation in the healthy diaphysis, on the
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bone loss) and type IVc (PD + previous irradiation of the pelvis with or without cavity or segmental bone loss). 4 In other widely used classifications, such as that of Paprosky et al, PD can be seen in type IIC and IIIA defects but are more
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bone regeneration in rabbit skull defects . BMC Musculoskeletal Disorders 2013 14 76. ( https://doi.org/10.1186/1471-2474-14-76 ) 39. Li P Ma YC Sheng XY Dong HT Han H Wang J & Xia YY . Cyclic fluid shear stress promotes
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and AAOS type 3 and 4 defects demonstrate severe bone loss of the acetabular rim and supporting structures, such as the medial wall and the anterior/posterior column with possible pelvic discontinuity ( 1 , 2 , 3 ). Over the past decades, multiple
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long bone nonunion and bone defects as evidenced by many studies. 52 - 58 Their application in cases of AVN of FH may give similar good results. Further studies are needed to clarify the more effective biotechnologies to use in the treatment of
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pressure from the gap between the stem and the cement through a defect in the cement mantle. The pressure waves may devitalize the adjacent bone tissue, which is resorbed, thereby causing focal femoral osteolysis. Note . From Acta Orthop 31 with
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Connolly Hospital, Orthopaedic Department, Dublin, Ireland
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MS et al. Safety, osseointegration, and bone ingrowth analysis of PMMA-based porous cement on animal metaphyseal bone defect model . J Biomed Mater Res B Appl Biomater 2018 ; 106 : 649 – 658 . 20. Cimatti B Engel EE
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result in improved penetration into the macrostructure of cancellous bone, resulting in stronger fixation ( 10 , 11 ). Centralizers are primarily aimed to decrease the incidence of C2 defects on the Barrack classification where the implant is in direct
