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Scientific Research

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RPA Janssen President of the Dutch Arthroscopy Society Anterior cruciate ligament: information, symptoms, diagnosis and treatment.
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New publication pediatric ACL injuries and return to sports

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RPA janssen MD PhD Prof is memeber of the PaTIO study group. Recently, a publication has been...

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Two new publications

Recently 2 new publications have been accepted in peer reviewed journals. These...

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The Pellegrini-Stieda lesion of the knee: an anatomical and radiological review

The Pellegrini-Stieda lesion of the knee: an anatomical and radiological review

Somford MP, Janssen RPA, Meijer D, Roeling TAP, Brown C Jr, Eygendaal D
J Knee Surg. 2019 Jul;32(7):637-641

The Pellegrini-Stieda lesion is a calcification on the medial side of the knee. The origin of this tissue is controversial. The purpose of our study is to investigate the origin of the Pellegrini-Stieda lesion using conventional radiography as to recreate the circumstances in which Pellegrini and Stieda had to study this pathology. Six nonpaired fresh-frozen cadaveric knees were used. A surgical approach to the medial side of the knee was performed using the layered approach. The origin of the gastrocnemius muscle (GM) (n = 3) or the superficial medial collateral ligament (sMCL) (n = 3) were marked with a radio-opaque fluid. X-ray analysis was performed by measuring the distance from the proximal part of the marking to the medial tibial plateau, multilayer views, and comparison to the original X-rays by Pellegrini-Stieda. Two out of three markings in both the GM and sMCL group were matched with the correct structure. The images were digitally processed so that the osseous structures became partly transparent. After overlaying the images, we found a random distribution of the markings. The Stieda/GM group had no overlap of the markings at all. Compared with the original images from the publications by Pellegrini and Stieda, no comparable position could be found between the original lesions and the markings in our specimens. Conventional X-ray of the knee could not reproduce a distinction between the sMCL and GM as origins for the Pellegrini-Stieda lesion as suggested by Pellegrini and Stieda.


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RPA Janssen, MD PhD Prof
Orthopaedic Surgeon
Orthopaedic Associates Eindhoven Greater Area
Orthopedic Center Máxima
Máxima Medical Center (MMC)

Visiting adress MMC Eindhoven:
Ds. Th. Fliednerstraat 1
Ingang Zuid
5631 BM  Eindhoven
The Netherlands 
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The Netherlands
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5600 PD  Eindhoven
The Netherlands

Tel. 0031 (0)40 88 88 600
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Fax: 0031 (0)40 88 85 938
www.rpajanssen.com 

Links:
KneeGuru
Orthopaedic Associates Eindhoven Greater Area
Máxima Medical Center
Eindhoven University of Technology
Fontys University of Applied Sciences
 

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