Jumper's Knee Treatment & Management: Acute Phase ...
emedicine.medscape.com/article/89569-treatment
Apr 2, 2013 - Blazina et al first used the term jumper's knee (patellar tendinopathy, patellar tendinosis, patellar tendinitis) in 1973 to describe an insertional ...

Jumpers Knee | Patellar tendonitis Treatment, Rehabilitation ...
www.sportsinjuryclinic.net/sport-injuries/knee-pain/jumpers...
Jumpers knee or patellar tendonitis is pain in the tendon which attaches the kneecap or patella to the top of the shin bone or tibia. It is usually an overuse injury ...

Patellar tendinitis - Mayo Clinic
www.mayoclinic.org/diseases-conditions/patellar.../con-2002...
Patellar tendinitis, also known as jumper's knee, is most common in athletes whose sports involve frequent jumping — such as basketball and volleyball.

Patellar Tendinitis Treatment | Jumper's Knee - Stretch Coach
stretchcoach.com/articles/patellar-tendinitis/
Patellar Tendinitis, or Jumper's knee, is an extremely painful and frustrating injury that puts a big strain on the front of the knee joint, just below the knee cap.

Jumper's Knee
www.hughston.com/hha/a_13_4_4.htm
Jumper's Knee. Patellar tendinitis, also known as jumper's knee, is a relatively common inflammatory condition that causes pain in the anterior (front) aspect of ...

Jumper's Knee (Patellar Tendonitis) - KidsHealth
kidshealth.org › Parents › Diseases & Conditions
Jumper's knee is an inflammation or injury of the patellar tendon. Although it can seem minor, it's actually a serious condition that can get worse over time and ...

Jumper's Knee - WebMD
www.webmd.com/fitness-exercise/jumpers_knee
Oct 25, 2013 - ... tendinopathy seen in skeletally mature athletes. Jumper's knee usually affects the attachment of the patellar tendon to the inferior patellar pole.

"Das Patellaspitzensyndrom ist eine chronische, schmerzhafte, degenerative Überlastungserkrankung am Knochen-Sehnen-Übergang (Insertionstendopathie) im Bereich der Kniescheibe (Patella)."
http://flexikon.doccheck.com/de/Patellaspitzensyndrom

There doesn't seem to be a common as well as accurate English translation of this term; many of the terms used as translations are not specific to the apex of the patella (e.g. 'patellar tendinopathy', 'jumper's knee'. Since the German definition (above) refers to 'Insertionstendopathie' (enthesopathy in English) as well as the 'Spitze' (apex in English), 'painful apical enthesopathy of the patella' would be an accurate and descriptive translation.

"Enthesopathy of the patellar tendon insertion associated with isotretinoin therapy"
http://www.ncbi.nlm.nih.gov/pubmed/8441038

"Blazina et al first used the term jumper's knee (patellar tendinopathy, patellar tendinosis, patellar tendinitis) in 1973 to describe an insertional tendinopathy seen in skeletally mature athletes,[1] although Sinding-Larson, Johansson, and Smillie once described this condition. Jumper's knee usually affects the attachment of the patellar tendon to the inferior patellar pole."
http://emedicine.medscape.com/article/89569-overview