Salil Pandit 1 , Chris Frampton , Julian Stoddart , Tim Lynskey Show Affiliations »
Abstract
PURPOSE: The aim of this study was to report normal values of the tibial tuberosity-trochlear groove distance (TTTG) in males and females and assess the reliability of MRI in measuring TTTG. METHODS: Patients presenting with a suspected meniscus injury without any patellofemoral or ligamentous instability, and arthroscopically normal cruciate ligaments and patellofemoral joints were included in the study. K-PACS© was used for MRI analysis and was performed by three observers blinded to each others' measurements. RESULTS: One hundred patients (57 males, 43 females) were recruited from 2006-2010. The mean TTTG in males was 9.91 mm (95% CI 8.9-10.8 mm) and in females 10.04 mm (95% CI 8.9-11.1). The coefficient of variation was <10% for both intra and inter-observer analysis. CONCLUSIONS: The normal TTTG distance is 10 ± 1 mm with MRI being a reliable method of measurement. Literature supports a high degree of variability in reporting TTTG. This study establishes normal TTTG values, which will help in the assessment and treatment of patellofemoral disorders.
PURPOSE: The aim of this study was to report normal values of the tibial tuberosity-trochlear groove distance (TTTG) in males and females and assess the reliability of MRI in measuring TTTG. METHODS: Patients presenting with a suspected meniscus injury without any patellofemoral or ligamentous instability, and arthroscopically normal cruciate ligaments and patellofemoral joints were included in the study. K-PACS© was used for MRI analysis and was performed by three observers blinded to each others' measurements. RESULTS: One hundred patients (57 males, 43 females) were recruited from 2006-2010. The mean TTTG in males was 9.91 mm (95% CI 8.9-10.8 mm) and in females 10.04 mm (95% CI 8.9-11.1). The coefficient of variation was <10% for both intra and inter-observer analysis. CONCLUSIONS: The normal TTTG distance is 10 ± 1 mm with MRI being a reliable method of measurement. Literature supports a high degree of variability in reporting TTTG. This study establishes normal TTTG values, which will help in the assessment and treatment of patellofemoral disorders .
Entities: Disease
Species
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Year: 2011
PMID： 21394593 PMCID： PMC3224621 DOI： 10.1007/s00264-011-1240-8
Source DB: PubMed Journal: Int Orthop ISSN： 0341-2695 Impact factor: 3.075