This prospective clinical study evaluated 69 patients (136 knees) presentin
g with anterior knee pain after failure to respond to conservative treatmen
t. All patients agreed to undergo minimally invasive intraosseous pressure
measurements of the patella under local anesthesia.. Forty patients (50 kne
es) demonstrated a positive pain provocation test (the typical pain sensati
on could be reproduced by raising intrapatellar pressure) and were treated
with a new method of intraosseous drilling and decompression. Ninety percen
t of the patients treated experienced pain relief >3 years postoperatively.
Repeated intraosseous pressure measurements in 33 knees 1 year postoperati
vely confirmed objective intraosseous pressure reduction in 88%. Patients w
ith anterior knee pain and a positive pain provocation test were labeled as
hypertension syndrome of the patella. These results indicate simple extra-
articular patellar decompression may offer a valuable new form of treatment
in select patients with anterior knee pain, ie, hypertension syndrome of t
he patella.