Distribution of Lengths of the Normal Femur and Tibia in Children from One to Eighteen Years of Age

Anderson, Margaret; Messner, Marie Blais; Green, William T.

doi:10.2106/00004623-196446060-00004

Cited by 229 publications

(139 citation statements)

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“…This line is placed at a slope of 1 to reduce errors in drawing both horizontal and vertical lines to it. The other lines are placed in a way that the ratio of its X-coordinate to the Xcoordinate of the maturity line at the same Y-coordinate is equal to the proportion of adult growth achieved by that skeletal age as derived from the mean values in the tables of Anderson et al (1964) for boys and girls. In other words, if the maturity line slope is 1 (X = I , Y = I), then a skeletal age line with a slope of 1.4 (X = 0.7, Y = 1) shows that given a specific skeletal age, 70% of the total growth of the limb is achieved.…”

Section: Methodsmentioning

confidence: 99%

“…The use of M-SLG has been reported by several authors (Timperlake et al 1991, Dewaele and Fabry 1992, Lampe et al 1992. Apart from failures not related to the use of M-SLG itself, discussion on the accuracy of this method focuses on the data about which M-SLG was based-i.e., measurements of North American children in the 1940s and 1950s (Anderson et al 1964). Regional and present-day differences in skeletal maturation (Porat et al 1991) as well as the tendency of people in industrialized countries to become taller (Van Wieringen 1987) affect the use of M-SLG.…”

Section: Paul G H Mulder2mentioning

confidence: 99%

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The straight line graph in limb length inequality a new design based on 182 Dutch children

Beumer

Lampe

Swierstra

et al. 1997

Acta Orthopaedica Scandinavica

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Section: Methodsmentioning

confidence: 99%

Section: Paul G H Mulder2mentioning

confidence: 99%

The straight line graph in limb length inequality a new design based on 182 Dutch children

Beumer

Lampe

Swierstra

et al. 1997

Acta Orthopaedica Scandinavica

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“…The most commonly used method to predict limb length discrepancy and determine maturation is the Moseley straight-line graph method [1,3,5,7,10,12,14,19,22], which is a derivation of the data published by Anderson et al [16,21,22], and which is easy to visualise because of the graphic format [14]. The accuracy of predicting limb length discrepancy by the Moseley straight-line graph is supported by only a small number of outcome studies [1,[7][8][9][10]22].…”

Section: Discussionmentioning

confidence: 99%

“…If growth cannot be accurately predicted, over or undercorrection of the limb length may result at maturity [1,5,7,9]. Difficulties in predicting the growth include variability of skeletal age estimation [3-5 12, 14], unusual skeletal maturation patterns in some diseases [1,5,8,15,16], and inaccurate calculations by the physician [1,5,8].…”

Section: Introductionmentioning

confidence: 99%

Possible mistakes in prediction of bone maturation in fibular hemimelia by Moseley chart

Szabó

Mackenzie²,

Domos

et al. 2010

International Orthopaedics (SICOT)

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The purpose of this study was to establish a nomogram in order to predict limb length discrepancies in children with unilateral fibular hemimelia more accurately. In 31 children with unilateral fibular hemimelia the femoraltibial length and skeletal age were determined an average of seven times per case by sequential radiographs during growth. From the data, a skeletal age nomogram was developed which shows a steeply declining mean skeletal age pattern in unilateral fibular hemimelia (the slope in girls was −0.59 and in boys −0.64). This nomogram crosses the normal mean skeletal age line of the Moseley straight-line graph at 10.5 years in girls and at 12 years in boys, and continues to decline until maturity. The results demonstrate an abnormal skeletal maturation process in patients with unilateral fibular hemimelia. The consistently declining steep skeletal age nomogram in unilateral fibular hemimelia makes prediction of skeletal maturity and limb length discrepancy inaccurate by the standard predictive methods particularly when using early skeletal ages. The skeletal age nomogram from our data determines skeletal maturation in children with unilateral fibular hemimelia more accurately, and allows a correct prediction of limb length discrepancy.

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“…Annual physeal growth rates were obtained from the literature and a multiplier of 1.243 was used based on the finding of contralateral limb overgrowth in this population [2,3,7]. Based on our practice, surgical expansions were assumed to be 1 cm per lengthening procedure and noninvasive expansions were 0.40 cm each; 2-cm surgical lengthening procedures were included in the analysis for completeness although lengthening of this amount is not performed at our institution (Tables 3 and 4).…”

Section: Introductionmentioning

confidence: 99%

What are Estimated Reimbursements for Lower Extremity Prostheses Capable of Surgical and Nonsurgical Lengthening?

Henderson

Pepper

Letson

2012

Clinical Orthopaedics &Amp; Related Research

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Background Growing prostheses accommodate skeletally immature patients with bone tumors undergoing limbpreserving surgery. Early devices required surgical procedures for lengthening; recent devices lengthen without surgery. Expenses for newer expandable devices that lengthen without surgery are more than for their predecessors but overall reimbursement amounts are not known.Questions/purposes We sought to determine reimbursement amounts associated with lengthening of growing prostheses requiring surgical and nonsurgical lengthening. Methods We retrospectively reviewed 17 patients with growing prostheses requiring surgical expansion and eight patients with prostheses capable of nonsurgical expansion. Insurance documents were reviewed to determine the reimbursement for implantation, lengthening, and complications. Growth data were obtained from the literature. Results Mean reimbursement amounts of surgical and nonsurgical lengthenings were $9950 and $272, respectively. Estimated reimbursements associated with implantation of a growing prosthesis varied depending on age, sex, and location. The largest difference was found for 4-year-old boys with distal femoral replacement where reimbursement for expansion to maturity for surgical and nonsurgical lengthening prostheses would be $379,000 and $208,000, respectively. For children requiring more than one surgical expansion, net reimbursements were lower when a noninvasive lengthening device was used. Annual per-prosthesis maintenance reimbursements to address complications for surgical and nonsurgical lengthening prostheses were $3386 and $1856, respectively.

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Distribution of Lengths of the Normal Femur and Tibia in Children from One to Eighteen Years of Age

Cited by 229 publications

References 0 publications

The straight line graph in limb length inequality a new design based on 182 Dutch children

The straight line graph in limb length inequality a new design based on 182 Dutch children

Possible mistakes in prediction of bone maturation in fibular hemimelia by Moseley chart

What are Estimated Reimbursements for Lower Extremity Prostheses Capable of Surgical and Nonsurgical Lengthening?

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