Novel method of measuring patellar height ratio using a distal femoral reference point
نویسندگان
چکیده
منابع مشابه
A new method of measuring patellar height.
To measure the patellar height the ratio of the articular length of the patella to the height of the lower pole of the articular cartilage above the tibial plateau is measured on a lateral radiography of the knee, flexed beyond 30 degrees. Normal values lie between 0-54 and 1-06. The subluxing patella is at the upper end of the normal range, but, in chondromalacia, the male patellae were lower ...
متن کاملPatellar instability treated with distal femoral osteotomy.
BACKGROUND Patellar instability can cause significant disability in both pediatric and adult patients, and it is associated with several factors including genu valgum. In this study, we describe the role of a lateral opening wedge distal femoral osteotomy (DFO) combined with lateral retinacular release in addressing genu valgum with associated patellar instability. The rationale for this approa...
متن کاملA Novel Reference Current Calculation Method for Shunt Active Power Filters using a Recursive Algebraic Approach
This paper presents a novel method to calculate the reference source current and the referencecompensating current for shunt active power filters (SAPFs). This method first calculates theamplitude and phase of the fundamental load current from a recursive algebraic approach blockbefore calculating the displacement power factor. Next, the amplitude of the reference mains currentis computed with ...
متن کاملA direct method of measuring femoral anteversion using ultrasound.
The measurements of the angle of anteversion of the femoral neck by ultrasound scanning is described. The method was compared with direct measurement in 30 dried femora, and was then used in 18 normal volunteers and eight patients. The method is non-invasive, accurate and easily applicable. Findings in normal subjects included variation of the angle of anteversion from 10 to 34 degrees with a m...
متن کاملA Survey on Current Methods of Carpal Height Ratio Measurement and Suggestion of a New Method
Background & Aims: Two famous methods are commonly used for the measurement of carpal height ratio. Both methods are performed on anteroposterior radiogram and have some shortcomings. We are going to introduce a new method for measuring this index in lateral view of the wrist radiogram' Methods: This cross-sectional and case-control study was conducted on 100 anteroposterior and lateral radiogr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Orthopaedics
سال: 2011
ISSN: 0341-2695,1432-5195
DOI: 10.1007/s00264-011-1340-5