Morphology of the Proximal Femur in a Pakistani Population

Sepah, Yasir J.; Khan, Adeel Ahmed; Wazir, Ali; Ahmed, Mahmood; Jawad, Muhammad Umar

doi:10.1177/230949901001800304

Cited by 34 publications

(43 citation statements)

References 8 publications

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“…In 150 healthy patients, Lecerf et al (2009) obtained an average FNA of 129º (± 6º). Likewise, Umer et al (2010) obtained similar results in the Pakistani population, where the femoral neck angle was on average 130.3mm (± 6.1 mm). Calis et al (2004) observed in x-rays of Turkish female patients that the width of the femoral neck was 35 mm, along with an angle of 128.9º.…”

Section: Discussionsupporting

confidence: 67%

Proximal Femoral Epiphysis Anatomy in Chilean Population: Orthopedic and Forensic Aspects

Osorio¹,

Schorwer²,

Coronado

et al. 2012

Int. J. Morphol.

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SUMMARY:From a biomechanical standpoint, bone geometry and density are factors correlated to the bone resistance of the femur when supporting body weight, with geometric parameters like the diameter of the femoral head and neck, the length of the femoral neck, and the femoral neck angle as determinant factors in the incidence of hip fractures, which increase in frequency and seriousness in osteoporotic patients. In Chile, morphometric data that contributes to relating the anatomy of the proximal epiphysis of the femur as an associated factor in hip fractures does not exist; likewise, there are no anthropometric indexes that may contribute to the forensic sciences. The purpose of this study is to establish average measurements of the proximal epiphysis of the femur in the adult Chilean population. Descriptive Study. The proximal epiphyses of 81 dry adult femurs were analyzed (44 right and 37 left bones), measuring the following parameters: length of the femoral neck (LN), femoral neck angle (FNA), circumference of the femoral head (CH) and circumference of the femoral neck (CN). The statistical relationship between the measurements and the side of each sample was analyzed (t-test p=0.05). The average lengths were LN= 3.59cm (±0.43 cm); FNA= 124.17º (±6.37º), CH= 14.34 cm (±1.27 cm) and CN= 9.7 cm (±0.87 cm). No significant differences between the left and right sides were found. Average numbers were obtained for the anatomy of the proximal femoral epiphysis from a sample in the Chilean population. With the data obtained, we propose to carry out anatomoclinical, epidemiologic and forensic studies in this population.

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Section: Discussionsupporting

confidence: 67%

Proximal Femoral Epiphysis Anatomy in Chilean Population: Orthopedic and Forensic Aspects

Osorio¹,

Schorwer²,

Coronado

et al. 2012

Int. J. Morphol.

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“…The dimensions of the femur are affected by gender and ethnicity [8,16,20,26,31,40,43,44]. Other than a small correlation between increased height and increased AP femoral head symmetry, there was no association between asymmetry and age, weight, height, ethnicity, and gender.…”

Section: Discussionmentioning

confidence: 94%

“…Proximal femoral anatomy has been the subject of numerous studies owing to the success of hip arthroplasty worldwide [5,6,15,18,31,43], and as a result of the discovery that certain femoral disorders, such as femoral acetabular impingement and Legg-Calvé-Perthes disease, can lead to osteoarthritis [1,11,13,41]. The investigators who have examined symmetry have studied bone properties and cortex thickness [28,32,36,40], with few studying dimensions [3,28].…”

Section: Discussionmentioning

confidence: 99%

“…Research on gender anatomic variations showed differences in femoral offsets and canal dimensions between males and females [2,6,29,44]. Studies of ethnic variations of morphologic features of the femur showed differences in femoral head diameters, femoral offset, and shaft diameters between European and Asian populations [18,43]. Research on bilateral femoral asymmetry has focused on properties such as bone mineral density, mechanical strength, cortex thickness, torsion angles, limb lengths, or the distal femur [8,26,28,32,36,40].…”

Section: Introductionmentioning

confidence: 99%

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Are the Left and Right Proximal Femurs Symmetric?

Young

Gebhart

Cooperman

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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Background The contralateral femur frequently is used for preoperative templating for THA or hemiarthroplasty when the proximal femur is deformed by degenerative changes or fracture. Although femoral symmetry is assumed in these situations, it is unclear to what degree the contralateral femur is symmetrical. Questions/purpose We therefore defined the degree of asymmetry between left and right proximal femurs and determined whether it was affected by demographics and proximal femoral anatomy. Methods We obtained 160 paired femurs from individuals (20-40 years old), evenly distributed for gender and ethnicity (African-American and Caucasian). The height and weight of the individuals were recorded. We measured the femoral head diameter, minimal femoral neck diameter in the AP and cephalocaudal (CC) planes, and the AP femoral diaphyseal diameter. The absolute and percent differences were determined.Results All femoral measurements showed an absolute difference less than 2 mm and a percent asymmetry and difference less than 2% for the femoral head, less than 4% for the femoral neck, and less than 3.5% for the femoral shaft. We found no correlation or predictive value between absolute differences and asymmetry and age, ethnicity, gender, or weight. Height was negatively associated with femoral head differences and thus increased symmetry of the femoral head. Conclusions Our data support assumptions of substantial symmetry of the proximal femur and highlights that asymmetry is not affected by demographics or the size of the proximal femur. Asymmetry tends not to occur in isolated segments of the femur.

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“…[11,12] In this study, the inner and outer diameters of the stainless steel cylinder representing lesser trochanteric level were 30 mm and 45 mm on the level of lesser trochanter. [17][18][19][20] Two centimeters below the tip of the stainless steel cylinder, there were two opposite holes with a diameter of 8 mm. In the three-point bending test, we used an interlocking nail of 380x12 mm, the proximal 90 mm part of which was 13 mm in diameter There was an oblong proximal locking screw hole which was 12 mm long and 6 mm wide 60 mm distal from the interlocking nail proximal edge.…”

Section: Methodsmentioning

confidence: 99%

Biomechanical comparison of three-point bending resistance of titanium and stainless steel locking screws in intramedullary nails

Karaarslan

Karakaşlı

Aycan

et al. 2015

Eklem Hastalik Cerrahisi

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Morphology of the Proximal Femur in a Pakistani Population

Abstract: Morphology of the proximal femur in our study population differed significantly from those in western populations, indicating regional variation. It could also be due to the younger age of our population.

Cited by 34 publications

References 8 publications

Proximal Femoral Epiphysis Anatomy in Chilean Population: Orthopedic and Forensic Aspects

Proximal Femoral Epiphysis Anatomy in Chilean Population: Orthopedic and Forensic Aspects

Are the Left and Right Proximal Femurs Symmetric?

Biomechanical comparison of three-point bending resistance of titanium and stainless steel locking screws in intramedullary nails

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