Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Sports Medicine - Knee
Abstract number: 24280
PATELLAR TENDINOSIS IN COMPETITIVE ATHLETES
Marko PECINA 1 , Ivan BOJANIC 2 , Alan IVKOVIC 3 , Luka BRCIC 4 , Tomislav
SMOLJANOVIC 2 , Sven SEIWERTH 4
1 School of Medicine University of Zagreb, Zagreb (CROATIA), 2 Department of
Orthopaedic Surgery School of Medicine Zagreb, Zagreb (CROATIA), 3 University
Hospital,Clinical Medical Center Zagreb, Zagreb (CROATIA), 4 Department of
Pathology School of Medicine Zagreb, Zagreb (CROATIA),
The aim of this prospective study was to detect the efficacy of the surgical treatment
of patellar tendinosis and to determine the exact localization of the histopathological
process (bone, bone-tendon junction or tendon) and the type of the pathological
process: inflammation or degenerationWe have performed prospective study in 34
professional athletes treated with arthroscopically enhanced method of patellar
apicotomy. In all patients’ histopathological examination of resected bone and tendon
tissue was performedAll the patients were classified as stage 3 according to Blazina
and showed no improvement after at least 6 months of conservative treatment. The
postoperative follow-up was from 1 to 8 years with mean value of 4.7 years.Very
good results were achieved in 59 % of operated knees, good result in 35 % knees
and poor result were achieved in 6 % operated knees. Pathological changes in the
bone were found in 33% of operated patients, abnormality at the bone-tendon
junction were found in 75% of the patients, and the changes in patellar tendon were
found in all operated patients. All the changes found are of degenerative and not of
inflammatory nature. Today we agree that the expression tendinitis is "out". No
inflammatory cells can be found in the tendons. It has shown that there is no increase
in prostaglandins in the tendinosis tendon. Histopathological studies of tendinosis
tissues fibrils characteristically demonstrate hypercellularity, hypervascularity, lack of
inflammatory infiltrates, and dezorganization and loosening of collagen.The clinical
results and histopathological examination in our series justified our operative method.
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