Morphological Study of the Newly Designed Cementless Femoral Stem

Baharuddin, Mohd Yusof; Salleh, Sheikh Hussain Shaikh; Zulkifly, Ahmad Hafiz; Lee, Muhammad Hisyam; Noor, Alias Mohd

doi:10.1155/2014/692328

Cited by 20 publications

(19 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This index was between 1.20 and 1.28 on the dogs of this study and this is also in the range already described by Palierne et al 2006 andPalierne et al 2008. On the other side, the variations of flare of proximal femoral canal on cranio-caudal direction require the designing of the anatomic femoral implants or other biologic fixation implants which are often used in human orthopedics (Baharuddin et al, 2014;Husman et al, 1997;Laine et al, 2000;Rubin et al, 1992;Yang et al, 2014). The cranio-caudal radiographs have been only used to calculate the CFI for dog femora (Ganz et al, 2010;Marcellin-Little et al, 1999;Palierne et al, 2006;Palierne et al, 2008;Pugliese, 2014;Rashmir-Raven and DeYoung, 1992).…”

Section: Discussionsupporting

confidence: 84%

“…Other side cortical thickness is an important factor to proper canal preparation (Peck and MarcellinLittle., 2013) In studies about THA, the cortico-medullary index is generally calculated only at the midshaft or at the ishtmus regions and at the medio-lateral direction (Baharuddin et al, 2014;Noble et al, 2003;Palierne et al, 2006;Palierne et al, 2008;Umer et al, 2010;Yeung et al, 2006). Femur has under the bending loadings in particularly.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Kangal ve Alman Çoban Köpeklerinin Proximal Femur Bölümünde Cavum Medullare’nin Geometrik Özellikleri

Sevil-Kilimci¹,

Kara²

2016

İstanbul Üniversitesi Veteriner Fakültesi Dergisi

View full text Add to dashboard Cite

The proximal femur has morphological variability that is related to its functional and biomechanical properties. Therefore, researchers have long been interested in these variations especially associated with the femoral implant design and implantation in total hip arthroplasty. The positions of the femoral head and the geometrical variations in the medullary canal are evaluated in particular to understand the proximal femoral morphology. The position of head or neck of the dog has already been studied in detail. There are incomplete data to evaluate variations in the geometry of the medullary canal of proximal femur in dog. Proximal femoral morphology of the medullary canal has been evaluated only at the coronal plane in dog studies using plain radiography. The morphometric data on the sagittal plane are also need to innovations in femoral implants. The purpose of this study is to indicate the detailed geometric data about proximal femoral canal of dog using threedimensional morphometric methods to provide a database for the orthopedic studies. The effect of the breed with different pelvic limb conformation was also studied in this study. The cleaned femora from 16 German shepherd and 16 Kangal dogs were used. The threedimensional images were reconstructed from the computed tomographic images. The femoral length, the anteversion angle and neck angles, the isthmus position and the widths on medio-lateral and cranio-caudal directions of the cross-sections of proximal femur were measured. The cortico-medullary indices, the isthmus position index and the canal flare indices were also calculated to detailed investigation of medullary canal of the proximal femur. According to our study results, it must be considered in stem design that the level of the isthmus might change in response to different conformations of the dog breeds, whilst the flare indices are similar in the dogs. The flare of the medullary canal was firstly evaluated with the cranio-caudal diameters on the three-dimensional images in this study. The corticomedullary index shows some variation between the dog breeds across the levels and the directions of the cross-sections of the proximal femur. Nowadays, three-dimensional images can be acquired and morphometric measurements can be done easily by tomography in a lot of veterinary clinics. The data from three-dimensional morphometric analysis may contribute to the optimization of the design and preoperative selection of femoral implants by surgeons. Özet Kangal ve Alman Çoban Köpeklerinin Proximal Femur Bölümünde Cavum Medullare'nin Geometrik ÖzellikleriProximal femur, fonksiyonel ve biyomekanik özellikleri nedeniyle morfolojik varyasyonlar gösterebilir. Bu varyasyonlar, total kalça protezinin femoral implant uygulamaları ve tasarım çalışmalarında araştırıcılar için önemlidir. Proximal femur'un morfolojik özelliklerine ilişkin olarak, caput femoris pozisyonu ve cavum medullare'nin geometrik varyasyonları öncelikli olarak incelenir. Köpeklerde caput femoris pozisyonuna ilişkin çalışmalar daha ço...

show abstract

Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Kangal ve Alman Çoban Köpeklerinin Proximal Femur Bölümünde Cavum Medullare’nin Geometrik Özellikleri

Sevil-Kilimci¹,

Kara²

2016

İstanbul Üniversitesi Veteriner Fakültesi Dergisi

View full text Add to dashboard Cite

show abstract

“…Analysis of BMD to determine the quality of newly regenerated bones revealed that the tendency of BMD results was almost similar with that of BV/TV results. In analyzing the BMD using HU values, the threshold range of HU for soft tissue, cancellous bone, and cortical bone were ≈225, 226–661, and 662–1988 HU, respectively . At week 12, the HU of PCL/β‐TCP/Bone dECM scaffolds was significantly higher than that of other scaffolds.…”

Section: Resultsmentioning

confidence: 98%

Synergistic Effects of Beta Tri‐Calcium Phosphate and Porcine‐Derived Decellularized Bone Extracellular Matrix in 3D‐Printed Polycaprolactone Scaffold on Bone Regeneration

Kim

Ahn²,

Kim³

et al. 2018

Macromolecular Bioscience

View full text Add to dashboard Cite

Bone-derived extracellular matrix (ECM) is widely used in studies on bone regeneration because of its ability to provide a microenvironment of native bone tissue. However, a hydrogel, which is a main type of ECM application, is limited to use for bone graft substitutes due to relative lack of mechanical properties. The present study aims to fabricate a scaffold for guiding effective bone regeneration. A polycaprolactone (PCL)/beta-tricalcium phosphate (β-TCP)/bone decellularized extracellular matrix (dECM) scaffold capable of providing physical and physiological environment are fabricated using 3D printing technology and decoration method. PCL/β-TCP/bone dECM scaffolds exhibit excellent cell seeding efficiency, proliferation, and early and late osteogenic differentiation capacity in vitro. In addition, outstanding results of bone regeneration are observed in PCL/β-TCP/bone dECM scaffold group in the rabbit calvarial defect model in vivo. These results indicate that PCL/β-TCP/bone dECM scaffolds have an outstanding potential as bone graft substitutes for effective bone regeneration.

show abstract

“…Higher differences are also found on the endosteal widths at the metaphyseal region in human femur. 8,10,11 Andrade and colleagues calculated a lower CFI than the mean CFI of Palierne's studies. [19][20][21] And the variability in the body weights of dogs and the levels of endosteal width measurements was discussed.…”

Section: Discussionmentioning

confidence: 93%

“…[1][2][3][4] The evaluation of canal flare is important since canal fill and stem fit is used to plan total hip arthroplasty. 1,[5][6][7][8][9][10][11] The concept of a canal flare index (CFI) was first defined by Noble and colleagues 6 to understand the proximal canal shape of the human femur using plain radiography. The diameter of the metaphyseal region in which the stem is placed proximally and the diameter of the isthmus where it is placed distally were used to calculate the CFI.…”

Section: Introductionmentioning

confidence: 99%

Canal Flare Index in the Canine Femur Is Influenced by the Measurement Method

Sevil-Kilimci

Kara

2020

Vet Comp Orthop Traumatol

View full text Add to dashboard Cite

Objectives We evaluated whether differences exist among the canal flare index (CFI) values obtained by different calculation methods in the veterinary literature. Study Design The endosteal widths were measured from radiographic images of canine cadaveric femora. Three different formulae were used to calculate the CFI. The CFILT-M was the ratio of endosteal width at the medial aspect of the lesser trochanter (LT) to the midshaft (M), while the CFILT-I was the ratio of LT to the isthmus (I). The CFIPLT-I was the ratio of endosteal width at the proximal aspect of the lesser trochanter (PLT) and the I. The widths at each level and the CFI calculation methods were compared. Using Rashmir–Raven's method, the femora were typed as stovepipe, normal and champagne fluted. The limits of agreement were also evaluated. Results The endosteal width at the proximal aspect of the lesser trochanter was 12% wider than at the medial aspect and 8% wider at the midshaft than at the isthmus. The CFILT-M was less than CFILT-I and CFIPLT-I by 9 and 20%, respectively. By Rashmir–Raven's classification, the CFILT-M method provided 18% stovepipe, 79% normal and 3% champagne fluted femora. The CFILT-I method showed the stovepipe, the normal and the champagne fluted as 6, 82 and 12%, respectively. The CFIPLT-I method classified the femora either normal (55%) or champagne fluted (45%). The comparison of CFILT-M with the other methods using Bland–Altman analysis showed lower mean difference for the CFILT-I than the CFIPLT-I. Conclusion The level of width measurements at proximal femora might have an impact on the CFI values, likewise, preoperative planning procedures and the selection of a stem type in total hip arthroplasty.

show abstract

Morphological Study of the Newly Designed Cementless Femoral Stem

Cited by 20 publications

References 38 publications

Kangal ve Alman Çoban Köpeklerinin Proximal Femur Bölümünde Cavum Medullare’nin Geometrik Özellikleri

Kangal ve Alman Çoban Köpeklerinin Proximal Femur Bölümünde Cavum Medullare’nin Geometrik Özellikleri

Synergistic Effects of Beta Tri‐Calcium Phosphate and Porcine‐Derived Decellularized Bone Extracellular Matrix in 3D‐Printed Polycaprolactone Scaffold on Bone Regeneration

Canal Flare Index in the Canine Femur Is Influenced by the Measurement Method

Contact Info

Product

Resources

About