2 edition of Design rationale of an uncemented modular tumour prosthesis stem for the distal femur. found in the catalog.
Design rationale of an uncemented modular tumour prosthesis stem for the distal femur.
J. S. Mangat
Written in English
Dissertation (M.Sc.) - Unversity of Surrey, 2004.
|Contributions||University of Surrey. School of Engineering. Centre for Biomedical Engineering.|
For the tapered stem to subside, a void is used at the distal tip of the stem that allows controlled subsidence unhampered by distal cement. . Chapter 69 Uncemented Tapered Femoral Components Kristoff Corten and Robert B. Bourne Key Points • Proximal coating of uncemented stems allows for reliable ingrowth and decreased stress shielding of the proximal femur. • Uncemented stems manufactured with a titanium alloy have been associated with decreased rates of thigh pain. • Reliable and stable initial three-point fixation with a.
Endoprosthetic replacements of the proximal femur are commonly required to treat destructive metastases with either impending or actual pathological fractures at this site. Modular prostheses provide an off the shelf availability and can be adapted to most reconstructive situations for proximal femoral replacements. The aim of this study was to assess the clinical and functional Cited by: for a given design. This classiﬁcation will help differentiate and clarify when reporting on the design and clinical ﬁndings of short stem total hip arthroplasty. Poster Sydney, Australia, October , JISRF – A Classiﬁcation System for Short Stem Uncemented Total Hip Arthroplasty by Timothy McTighe*.
Currently, it is challenging to treat massive bone defects of proximal tibia. Although numerous methods are available for reconstruction with epiphysis preservation, limitations in knee function and complications are noted with these methods. Our paper describes our attempt to reconstruct a marked defect in the proximal tibia with an uncemented three-dimensional (3D)-printed prosthesis Cited by: 3. Reconstruction of the distal radius following tumour resection is challenging and various techniques are recorded. We retrospectively analysed the outcome of five patients (one male and four females) after reconstruction of the distal radius with osteoarticular allograft, following tumour resection. Mean followup was 32 months (range, 4–).Cited by: 5.
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Introduction. Before the s, the majority of high-grade musculoskeletal tumors involving the distal femur were treated with transfemoral amputation owing to an unacceptably high rate of recurrence associated with local resection [10, 19, 31, 47].As effective chemotherapeutic regimens were developed, limb salvage using various techniques gained popularity among orthopaedic Cited by: Background and purpose — Due to the relative lack of reports on the medium- to long-term clinical and radiographic results of modular femoral cementless revision, we conducted this study to evaluate the medium- to long-term results of uncemented femoral stem revisions using the modular MRP-TITAN stem with distal diaphyseal fixation in a consecutive patient by: We describe 25 patients who were treated for a tumour of the proximal femur by resection and replacement with an uncemented, bipolar, modular prosthesis.
When followed up. Discussion. Aseptic loosening is a frequent complication of modular prosthesis at the knee. In the series reported by Morgan et al, 30% of patients operated with a distal femoral or proximal tibial modular prosthesis required a revision at follow-up, after a mean time of 95 these patients, 56% required a revision for aseptic by: 3.
Uncemented femoral revision arthroplasty using a modular tapered, fluted titanium distal fixation of the prosthesis is required. The use of modular femoral stem design has grown. The rationale for the modular rotational hinged knee design is that it provides stability in the anterior-posterior and varus-valgus planes while allowing rotation of the tibia on the femur.
Theoretically, stress at the bone-cement interface is diffused by this rotational ability and decreases the risk of aseptic loosening. Device information Modular Distal Femur Components of the distal femoral implant Femoral component Cobalt-chromium-molybdenum femoral component, anatomical for left and right sides.
Available in two sizes, small and standard. Collar Ø27, Ø30, Ø33, Ø36mm round and 27 x 30, 30 x 33, 33 x 36, 36 x 39mm oval titanium collars. With. Fractures of modular stems at other portions of the compo-nent have been reported only sporadically5, Lakstein et al.8, in a study of seventy-two hips at ﬁve to ten years of follow-up, reported one stem failure at the modular junction, and one speciﬁc modular femoral stem designwas withdrawn from theFile Size: 2MB.
Femoral stem fracture following total hip arthroplasty is an uncommon event that requires immediate revision surgery.
We report on four patients who experienced stem fractures of one design and a review of the US Food and Drug Administration adverse event reports on this design. Fracture surfaces of four EMPERION™ (Smith & Nephew, Memphis, TN) femoral stems were analyzed under Cited by: 2.
Distally-Interlocked Modular Femoral Reconstruction Prosthesis Product Rationale and Surgical Technique. • Distal stem position with regards to height (distance between the groove on the trial stem, marking the metaphyso-diaphyseal junction, and the lower part File Size: KB.
Surgical Technique and Biomechanical Considerations. After resection of the tumour-affected part of the femur, the end of the wide part of the area of the noningrowth region of the prosthesis above the ingrowth rigid fluted stem abuts at the remaining distal femur end cylinder in order to achieve the best possible apposition to the shaft after spreading the distal flat by: 1.
Mumme T, Muller-Rath R, Andereya S, Wirtz DC () Uncemented femoral revision arthroplasty using the modular revision prosthesis MRP-TITAN revision stem.
Oper Orthop Traumatol – doi: /s CrossRef PubMed Google ScholarAuthor: Maik Hoberg, Christian Konrads, Jana Engelien, Dorothee Oschmann, Michael Holder, Matthias Walcher.
Stability is achieved through metaphyseal fill and the distal curve. 20 RESULTS • TYPE 1 AND TYPE 2 • This stem has been the subject of more published reports than any other can be safely used in type c canal. • McLaughlin JR, Lee KR.
Total hip arthroplasty with an uncemented tapered femoral component. The purpose of this study is to evaluate the primary stability of an uncemented femoral stem with four different modular necks varying version, length and neck-shaft angle.
Methods General. This study was approved by the regional medical research ethics by: A er resection of the tumour-a ected part of the femur, the end of the wide part of the area of the noningrowth region of the prosthesis above the ingrowth rigid uted stem abuts at the remaining distal femur end cylinder in order to achieve the best possible apposition to the sha a er spreadingthedistal at ns.e spreading athydroxyapatite coated.
July, Distal Femur Resection With Endoprosthetic Reconstruction Fig 3A–C.(A) Installation of the deﬁnitive modular prosthesis is shown.
Reprinted from Malawer M. Chapter 30 “Distal Femoral Resection with Endoprosthetic Reconstruction” In Malawer MM, Sugar-File Size: KB. Uncemented Compared to Cemented Femoral Stems in Total Hip Arthroplasty (CHANCE) The safety and scientific validity of this study is the responsibility of the study sponsor and investigators.
Listing a study does not mean it has been evaluated by the U.S. Federal Government. stem as well as remaining cement mantles after ce-mented stem removal. Another advantage of an ante - rior based osteotomy is that it allows the surgeon to Figure 1.
The modular, tapered titanium revision hip system used in the current study (Arcos, Biomet) features three proximal body types and five distal stem.
common in a Dorr Type A femur, by properly accommodating the proximal metaphysis without the need to fit a narrow distal femoral geometry. This design enhancement is based on the traditional Taperloc ® Reduced Distal stem which has been clinically successfully for over 16 years.5 The Taperloc® Complete stem design accuratelyFile Size: KB.
Retrospective analysis of implant survival, complications, and functional results of the Rizzoli series on distal femur megaprosthesis. Between anddistal femur tumour modular prostheses were implanted: fixed hinge and rotating hinge knee prostheses.
The SMF was designed as a short hip stem but has the stability and strength of a longer, conventional hip stem. SMF can be used in an anterior, lateral or posterior approach. SMF Short Modular Femoral offers the surgeon an improved bone conserving modular neck implant.
Find out more here.found that cemented prosthesis survival in RA patients is comparable, if not better, compared to other diagnoses. With the introduction of modern cementing techniques, femoral stem survival rates have improved.
Rasquinha21 reported on 15 THRs at year follow-up, Author: Abughalya, P Ryan, IE Goga.Fig. 10A: Analysis of a distal femur and total knee patient with a fractured stem.
Fig. 10B: The results indicate that the stress was too high and the I-beam stem design created additional stress Cited by: