Purpose: Sonography is used in routine clinical practice to examine joint bleedings or signs
of haemophilc arthropathy (HA) with effusion, synovitis, cartilage defects or subchondral
bone damage in patients with bleeding disorders. For the presentation of synovitis
or effusions as a sign of activity and defects of the articular cartilage or subchondral
bone as a sign of progression of HA standardized sonographic section planes are available.
In this study the sonographic findings are correlated with data from an ultrasonic
motion-analysis of the knees and the results of an orthopedic examination.
Material and methods: First experiencies were made in a group of 27 young german patients (3 – 28 years,
median 13.1) with hemophilia A, B or von Willebrand's disease. A standardized ultrasonography
of the elbow, knee and ankle joints with a Zonare z.one ultrasound machine (transducer
L14 – 5w) and simultaneously a clinical examination and a motion analysis of the knees
were performed. Joint ultrasound characteristics were scored (HEAD-US-Score developed
by C. Martinoli). Motion analysis of the knees were done with the Ultrasound-Topometer
and scored also. The scores and the results of the orthopedic examination were correlated.
Results: The results of various studies indicate an age-dependent correlation of ultrasound
and motion analysis. Joint sonography shows some changes already before detecting
in clinical examination.
Fig. 1: clinical examination
Conclusion: Initial studies of correlating a standardized ultrasonography of disease activity
in HA and joint function analysis showed age-dependent promising results. These results
were encouraging to examine the correlation now in a larger group of young patients
in germany (HämarthroSonoPilotTrial).