Multiplier 12+
Predict height & bone length
LifeBridge Health
Designed for iPhone
-
- Free
iPhone Screenshots
Description
-The Multiplier App automates calculations to predict mature height and bone length in children. This method was created originally in Baltimore at the University of Maryland, and subsequently developed at the International Center for Limb Lengthening (ICLL), Rubin Institute for Advanced Orthopedics (RIAO), Sinai Hospital of Baltimore.
-We have taught the Multiplier Method for more than 19 years at our annual Baltimore Limb Deformity Course (www.DeformityCourse.com). These calculations are typically performed by hand, using various formulae. Certain calculations are easy, but others involve more complicated formulae. Utilizing this app will reduce the time needed for these routine calculations and decrease errors. You need only input certain data (sex, age, length) and the app will calculate the answer by using the appropriate Multiplier formula.
The Multiplier App will allow you to make the following calculations:
• Lower Extremity
- Limb Length Discrepancy (LLD) (Congenital)
- LLD (Developmental)
- Growth Remaining
- Bone Length
- Timing of Angular Correction
- Timing of Epiphysiodesis
- Comprehensive (Congenital) LLD and Epiphysiodesis
-Scanogram Calculations (calculates femur/tibia lengths, overall limb length discrepancy, and amount/side of femur/tibia discrepancies)
• Upper Extremity
- LLD (Congenital)
- LLD (Developmental)
- Growth Remaining
- Bone Length
• Height and CDC Growth Charts (calculates height at maturity, calculates height at every age, and plots the patient’s height and weight on the CDC growth charts)
• Achondroplasia
- Height
- Sitting Height
- Leg Length
• Fetus (calculates the length of tibia or femur at birth and maturity)
• Foot
- Foot Length
- Foot Length Discrepancy
• Spine (calculates sitting height at maturity)
• Oblique Plane Deformity (calculates magnitude, orientation, and direction of an oblique plane deformity)
• Inclined Osteotomy (calculates the rotational orientation and the vertical inclination of the osteotomy)
This app also provides the following additional resources:
-Bone Age: Elbow and Hand (shows how to determine skeletal age by using radiographs of the elbow or hand)
-Figures that show the standard measurements for the lower limb and foot
-The multiplier formulae that the app uses to perform the calculations
-Tables that show the multiplier values that are used in the formulae
-Figures that show the Solomin Foot Analysis (deformity correction planning for the midfoot, hindfoot, and ankle using reference lines and angles provided by Dr. Leonid Solomin)
-Figures that show the development of the apophyses, epiphyses, and bones
-Bibliography
-User guide
Disclaimer: No growth prediction method is 100% accurate; this App is not a substitute for sound and careful clinical judgment.
Privacy Policy: We respect the privacy of the people who use International Center for Limb Lengthening apps. The Multiplier app does not collect, use or distribute any data from the users.
What’s New
Version 8.0
Exciting Updates:
We’ve introduced new features for the Ilizarov treatment, located in Additional Resources.
These include comprehensive calculators for both the Ilizarov hinge orientation along with a nut turning prescription after the Ilizarov frame has been applied.
A new calculator interface has been added for iPad users in place of the QWERTY keyboard.
Several bugs affecting calculations throughout the app have been resolved, ensuring more accurate results.
We're committed to continuously improving our app to better serve your needs. Thank you for using the Multiplier app!
Ratings and Reviews
Simple to use and extremely valuable for any pediatric orthopedist or pediatrician
The Multiplier app is an extremely useful tool for any clinician treating children. It allows predictions of growth based on current measurements by applying multipliers for various age/sex/specific clinical questions.
While these predictions were derived with often cumbersome and complex formulae, the app simplifies and streamlines and involves simply typing in some values. The app will provide answers and will break it down to allow a thorough understanding of expected measurement throughout the remainder of growth. This not only provides the clinician with valuable information through which to make treatment decisions, but also provides detailed predictions to better educate patients and their families as to expectations, as well as their treatment options.
I use it all the time for calculations such as expected leg length discrepancies at maturity (as well as the breakdown year to year), expected height at maturity, timing of angular correction for hemiepiphysiodesis, as well as timing of epiphysiodesis.
I share this information with my patients so that can appreciate the options available to them. They find it easy to understand and helpful to manage expectations and understand treatment options.
Other resources available through this app include standard values for the lower limbs, the original formulae, simplified ways for predicting skeletal age, timing of appearance of apophyses and a number of other useful features.
I highly recommend this app to efficiently provide critical information for planning treatment, even at the patient's first visit. Patients and families appreciate the simplified predictions that really help them make informed decisions about treatment.
Any orthopedic surgeon who treats children, any pediatrician looking for a simple to use resource for growth information or anyone looking for information on expected growth should download this app. I really find it indispensable.
Wonderful app!
Multiplier is a wonderful app that is both accurate and user friendly.
You will love it wether you are a professional seeking to improve his clinical practice , or a layman who just wants a bit of fun
A+++ to the ICLL team
Pediatric orthopaedic surgeon
A great useful app I use on a regular basis at my clinic.
It's easy to use, very intuitive and save my time. I've stopped using the tables after installing this app and I also show it to my patients. Highly recommended.
App Privacy
The developer, LifeBridge Health, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Information
- Seller
- LifeBridge Health
- Size
- 74.3 MB
- Category
- Medical
- Compatibility
-
- iPhone
- Requires iOS 12.0 or later.
- iPod touch
- Requires iOS 12.0 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
-
English
- Age Rating
- 12+ Infrequent/Mild Medical/Treatment Information
- Copyright
- © Sinai Hospital of Baltimore, Inc.
- Price
- Free