Recovery of Diaphyseal Bone Strength After Rigid Internal Plate Fixation:<i>An Experimental Study in the Rabbit</i>

Laftman, Peter; Sigurdsson, Fridflnnur; Strömberg, Lennart

doi:10.3109/17453678008990789

Cited by 37 publications

(9 citation statements)

References 8 publications

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“…Removal of stress from the bone results in bone resorption, 18) degradation of bone quality 19) which is partly characterized by the preferential orientation of collagen and apatite, 2022) and resultant reduced mechanical properties such as hardness, 23) strength, and toughness. 24) The products fabricated in the present study have low Young's moduli, less than 40 GPa, which is close to those of bones. At the same time, yield stress is around 200 MPa, which is also close to that of bones, and it can be further modified by changing the scan speed of electron beam.…”

Section: Mechanical Properties Of the Specimens Determinedsupporting

confidence: 63%

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young’s Modulus and High Toughness Fabricated by Electron Beam Melting

et al. 2015

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A clad structure that consists of solid and powder parts was created from powdered Ti-6Al-4V utilizing electron beam melting (EBM) technique by a single process. The input energy density required to melt the raw powder material was controlled by changing the scan speed of the electron beam from 100 to 2000 mm/s. The finished products showed several types of structures: a dense solid, a periodic layered (clad) structure made up of a solid part and an unmelted powder part, and almost full powder. The products with the clad structure showed a combination of low Young's modulus and high toughness as characterized by the presence of a stress plateau in the stress-strain curve. Both of these qualities are necessary for feasibility as implant materials used in orthopedic fields. We conclude that the products developed in this study could be useful as bone implants in terms of the mechanical similarity to bones, despite needing only an single EBM process for fabrication.

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Section: Mechanical Properties Of the Specimens Determinedsupporting

confidence: 63%

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young’s Modulus and High Toughness Fabricated by Electron Beam Melting

et al. 2015

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“…Therefore they usually represent the first choice treatment of the defect created by the osteotomy. Bone graft helps to maintain the surgical corrections but with possible donor site morbidity: Persistent and chronic pain, serious discharge, nerve injury with meralgia, paresthesia, infection, fractures, pelvic instability, hematoma, cosmetic defects, hernia, ureteral injuries, arterial injuries [12] . Moreover, sometimes it is not always feasible to shape a structural bone graft based on the dimensions of the defect precisely [13] .…”

Section: Bone Graftmentioning

confidence: 99%

“…According to the opening wedge treatment of a fracture united in a position of abnormality or deformity, a 3-D structural defect is produced by the surgeon in the distal radial metaphysis. The defect will then be filled with 3 different approaches: bone grafting, using a structural o non-structural autogenous corticocancellous bone graft; synthetic material [Norian, bone morphogenic proteins (BMP), osteogenic protein-1 (OP-1)]; no bone graft [11,12] .…”

Section: Introductionmentioning

confidence: 99%

Corrective osteotomies of the radius: Grafting or not?

Mugnai¹,

Tarallo²,

Lancellotti³

et al. 2016

WJO

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osteotomies to provide the best evidence of the rule of bone grafting. METHODS:Our MEDLINE literature search included 280 studies using the following key words "Malunited distal radius fracture" and 150 studies using key words "Corrective osteotomy of the distal radius". Inclusion criteria were: Malunited distal radial, extra articular fracture, volar locking plate, use of iliac bone graft (cancellous or corticocancellous), non-use of bone graft. Twelve studies met the inclusion criteria. RESULTS:Seven of the 12 studies considered, described the use of a graft; the remaining five studies didn't use any graft. Type of malunion was dorsal in most of the studies. The healing time was comparable using the graft or not (mean 12.5 wk), ranging from 7.5 to 16 wk. The mean disabilities of the arm, shoulder and hand score improvement was 23 points both in the studies that used the graft and in those not using the graft. CONCLUSION:This review demonstrated that corrective osteotomy of extra-articular malunited fractures of the distal radius treated by volar locking plate does not necessarily require bone graft. Core tip: The aim of this study was to review the current literature regarding corrective osteotomies in malunion of the distal radius to provide the best evidence of the rule of bone graft. Author contributions: Mugnai R, Catani F and Adani R designed the research; Lancellotti E and Di Giovine E performed the research; Mugnai R, Tarallo L and Zambianchi F wrote the paper. Conflict-of-interest statement:The authors declare that they have no conflicts of interest concerning this article. SYSTEMATIC REVIEWS 128February 18, 2016|Volume 7|Issue 2|

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“…Measured values are influenced by the primary weakening of the graft during revascularisation, the rigidity of internal fixation [18,30] and the biomechanical changes which occur during remodelling. Enneking et al found that there was minimal stability between 1.5 and 6 months after transplant of untreated autogenous grafts, and stability was almost achieved after one year [6].…”

Section: Discussionmentioning

confidence: 99%

Incorporation of devitalised autografts in dogs

Böhm

Scherer²

1997

International Orthopaedics

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Summary. Segments of the tibial diaphysis from 24 adult dogs were reimplanted after extracorporeal autoclaving or g-irradiation. Fixation was by interlocking intramedullary nailing, or plating. The dogs were killed after 36 weeks and the tibias examined. Bony union was seen in 46 of the 48 contact areas. Microangiography and Tc-perfusion scans demonstrated complete revascularisation of all the grafts. Biomechanical tests showed defective union with increased bending and decreased stiffness compared to normal controls. Fluorescent microscopy confirmed restitution of Haversian systems and slow replacement of the graft by lamellar bone containing viable osteocytes.

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Recovery of Diaphyseal Bone Strength After Rigid Internal Plate Fixation:An Experimental Study in the Rabbit

Cited by 37 publications

References 8 publications

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young’s Modulus and High Toughness Fabricated by Electron Beam Melting

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young’s Modulus and High Toughness Fabricated by Electron Beam Melting

Corrective osteotomies of the radius: Grafting or not?

Incorporation of devitalised autografts in dogs

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Recovery of Diaphyseal Bone Strength After Rigid Internal Plate Fixation:An Experimental Study in the Rabbit

Cited by 37 publications

References 8 publications

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young&rsquo;s Modulus and High Toughness Fabricated by Electron Beam Melting

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young&rsquo;s Modulus and High Toughness Fabricated by Electron Beam Melting

Corrective osteotomies of the radius: Grafting or not?

Incorporation of devitalised autografts in dogs

Contact Info

Product

Resources

About

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young’s Modulus and High Toughness Fabricated by Electron Beam Melting

Solid/Powder Clad Ti-6Al-4V Alloy with Low Young’s Modulus and High Toughness Fabricated by Electron Beam Melting