A stress analysis of the femoral stem in total hip prostheses

Andriacchi, T.P.; Jo, Galante; Belytschko, TB; Hampton, S.J.

doi:10.2106/00004623-197658050-00006

Cited by 129 publications

(46 citation statements)

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“…Furthermore, muscle forces can probably produce much higher peak loads than those used in our experiments; only the abductors were simulated in the jib, but all the tests were performed in the same way. Similar experiments have been described by Andriacchi et al (1976). Brockhurst & Svensson (1977), Oh & Harris (1978), McBeath et al (1979), , Rohlman et al (1983), Huiskes (1980), Voilin (1983), Lewis et al (1984).…”

Section: Discussionsupporting

confidence: 79%

Calcar unloading after hip replacement: A cadaver study of femoral stem designs

Djerf

Gillquist

1987

Acta Orthopaedica Scandinavica

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Section: Discussionsupporting

confidence: 79%

Calcar unloading after hip replacement: A cadaver study of femoral stem designs

Djerf

Gillquist

1987

Acta Orthopaedica Scandinavica

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“…As was shown in paragraph 5.5., the intramedultary fixation structure is nat very well suited for analyses using two-dimensionat models. lf no side plates are applied in the model, a sandwich construction is in fact anatysed in which unrealistically high shear stresses will occur Andriacchi et al, 1975;Kwak et al, 1979). Furthermore, slip at the stem-cement {ar cement-bone) interface wilt cause the overall flexural stiffness of such a model to be reduced drastically, resulting in unrealisticalty high stem and bone stresses.…”

Section: Fig 8 4: a Schematic Concept For An 'Idealized' Intramedulmentioning

confidence: 99%

“…5.17 .1; e.g. Andriacchi et al, 1975;Kwak et al, 1979). In this case no conneetion exists in the model between the lateral and the media!…”

mentioning

confidence: 99%

Some Fundamental Aspects of Human Joint Replacement: Analyses of Stresses and Heat Conduction in Bone-Prosthesis Structures

Huiskes

1980

Acta Orthopaedica Scandinavica

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“…[15] Varus malposition of femoral stem, loosening of the stem, high physical activity and smaller diameter of the femoral stem are among the predisposing factors for femoral stem fracture after primary procedure. [15,16] Inadequate osseous support in the proximal femur has been demonstrated to be a contributing risk factor to femoral stem fracture. [4] In our series, one patient underwent ETO and one patient underwent a cortical window fenestration for cement removal during previous revision surgery.…”

Section: Discussionmentioning

confidence: 99%

Minimally invasive hollow trephine technique is recommended for revision of broken uncemented and extensively porous-coated monolithic femoral stems: a review of three cases

Šteňo

Nečas

Melišík

et al. 2014

Eklem Hastalik Cerrahisi

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Total hip arthroplasty has been used for almost over five decades as a well-established procedure. Increasing number of revision total hip replacements (THR) due to aseptic and septic complications. [1,2] lead to the design of improved revision prostheses. Distally fixed, cementless, cylindrical femoral stems with an extensive porous coating are one of principal revision options in case of failed THR on the femoral side. These stems have been used in absence of adequate proximal femoral bone stock for over 30 years. [3] Their design enables them to achieve a solid initial diaphyseal fixation. A very stable secondary bone ingrowth occurs along the whole length of the coating. Good distal fixation actually leads to the fracture in the metaphyseo-diaphyseal junction of femoral component, particularly in the presence of proximal femoral bone loss. [4][5][6][7] Fracture of a revised stem is a result of material fatigue, [4,8] after a course without any complaints. Distal bone ingrowth of the prosthesis and present inadequate bone support [9] in the metaphyseal region leads to increased stress of the revision femoral stem. The clinical signs of a stem fracture in intact Kırık, çimentosuz ve aşırı düzeyde poroz kaplamalı femur başlarının revizyonu güçtür. Bu yazıda, çimentosuz ve aşırı düzeyde poroz kaplamalı kırık femur başlarının Solution™ başlar (DePuy, Warsaw, Indiana) ile revizyon cerrahisi uygulanan üç olgu sunuldu. Tüm olgularda femur osteotomisi veya kortikal fenestrasyon olmaksızın, minimal invaziv endofemoral revizyon başarıyla yapıldı. Distal kırık femur başı, skopi altında delikli trepan tekniği ile temizlendi. Femur komponentinin revizyon artroplastisinde daha büyük Solution™ başlar kullanıldı. Endofemoral yaklaşım ameliyat süresini ve kan ve kemik kaybı miktarını azaltır. Kırık ve çimentosuz femur başlarında minimal invaziv teknik önerilmektedir.Anahtar sözcükler: Femur başı; kırık; delikli trepan; poroz kaplamalı; revizyon.Revisions of fractured, uncemented and extensively porous-coated femoral stems are challenging. In this article, we report three cases of revision surgeries for broken, cementless, and extensively porous-coated femoral stems with Solution™ stems (DePuy, Warsaw, Indiana). In all cases, minimally invasive endofemoral revision was successfully performed without femoral osteotomy or cortical fenestration. Removal of distal broken femoral stem was performed with hollow trephine technique under fluoroscopy. For revision arthroplasty of the femoral component, Solution™ stems of larger diameter were used. Endofemoral approach reduces duration of surgery and the amount of blood and bone loss. Minimally invasive technique for broken and uncemented femoral stem is recommended.

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A stress analysis of the femoral stem in total hip prostheses

Cited by 129 publications

References 0 publications

Calcar unloading after hip replacement: A cadaver study of femoral stem designs

Calcar unloading after hip replacement: A cadaver study of femoral stem designs

Some Fundamental Aspects of Human Joint Replacement: Analyses of Stresses and Heat Conduction in Bone-Prosthesis Structures

Minimally invasive hollow trephine technique is recommended for revision of broken uncemented and extensively porous-coated monolithic femoral stems: a review of three cases

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