OWL: OCOSH Classification/Bone Diseases/Osteochondritis

Fragmentation of the proximal pole of the patella

Batten & Menelaus — 2008-03-23 00:53:59 GMT

Another manifestation of juvenile traction osteochondritis? Batten J, Menelaus MB. J Bone Joint Surg Br. 1985 Mar;67(2):249-51
Six boys with fragmentation of the proximal pole of the patella are reported; the condition was bilateral in one. Four of the six presented with symptoms of Osgood-Schlatter's disease or Larsen-Johansson disease of the same or of the contralateral knee, but they had no symptoms or signs relating to the proximal pole of the patella; one also had features suggesting minimal chondromalacia patellae. Two boys had no objective abnormality in either knee. It is suggested that the fragmentation may be a further form of traction osteochondritis of the attachments of the quadriceps mechanism. Attention is drawn to its characteristic radiographic appearance, its association with other forms of juvenile traction osteochondritis (which are commonly symptomatic), and to its occurrence in boys aged 10 or 11 years.

Osteochondritis Diseases Database

Not Available — 2007-01-09 00:53:59 GMT

Definition - Inflammation of bone and cartilage Osteochondritis may be caused by or feature of the following - Miscellaneous syndromes Blount's disease Freiberg's disease Juvenile osteochondrosis of head of femur Juvenile osteochondrosis of spine Kienbock's disease Kohler first disease Sever's disease Sinding Larsen-Johannson disease Orthopaedic conditions Aseptic necrosis of bone Humerus juvenile osteochondritis Iselin's disease Osgood-Schlatter's disease Osteochondritis dissecans may cause or feature - Arthropathy Kyphosis may be a risk factor for - Osteoarthritis

Osteochondritis Images

Not Available — 2007-07-12 00:53:59 GMT

ARRS Goldminer Search

Sinding - Larsen - Johansson Syndrome

Not Available — 2007-07-11 00:53:59 GMT

Sinding-Larsen-Johansson syndrome is inflammation of the kneecap (patella) at its lowest point. This is the site of origin of the patellar tendon. There is traction on the kneecap at this point due to action of the large, powerful thigh muscle (quadriceps), as well as with deep bending of the knee. The injury is due to repeated stress or vigorous exercise. It is a temporary condition of the patella that is uncommon after age 16. It is the children�s equivalent of patellar tendinitis (jumper�s knee).

Sinding Larsen-Johannson disease information Diseases Database

Not Available — 2007-07-11 00:53:59 GMT

Sinding Larsen-Johannson disease may cause or feature knee pain due to osteochondritis contusion and subsequent tendonitis in the proximal attachment of the patellar tendon

Sinding-Larsen-Johansson (SLJ) Disease

Dr I D Nara — 2007-07-11 00:53:59 GMT

VCU Health System Pediatric Radiology Case of the Week
Disease Images, diagnosis, Treatment options
Pain, swelling, tenderness of inferior patellar pole at origin of the patellar tendon
Osteochondrosis involving the apex of the patella 10-14 years
Traction phenomenon - tendonitis proximal patellar tendon
Calcification and ossification on elongated inferior patellar pole
Natural duration of the disease is approximately 3 to 12 months

Sinding-Larsen-Johansson disease CHORUS

Funaki — 2007-07-11 00:53:59 GMT

contusion and subsequent tendonitis in the proximal attachment of the patellar tendon can be followed by calcification, ossification, or frank inferior pole avulsion fractures that produce one or more distinct ossicles. per Stedman's dictionary: "apophysitis of the distal pole of the patella" symptoms: tenderness and soft tissue swelling over the lower pole of the patella aggregated by activity xray findings: osseous fragmentation of patella

Sinding-Larsen-Johansson Disease Cork Emergency Medicine

O'Sullivan — 2007-07-11 00:53:59 GMT

Notes and Illustrations
Children and adolescents 10-14 years
Knee pain aggravated by activity
Tenderness and soft tissue swelling over the inferior pole of the patella.
Probably traumatic (traction injury) origin
Closely related to Osgood-Schlatters
Tendinitis, followed by calcification or ossification.
X-ray - osseous fragmentation at lower pole patella
NOT an apophysitis or osteochondritis.
Patellar fracture or avulsion infrequent.
The calcifications are usually incorporated into the inferior pole of the patella, and the natural course of the condition is 3-12 months.
No need follow up x-ray in most
Treated symptomatically
Also responds to quads strengthening exercises
Rarely, debridement of patellar tendon needed

Sinding-Larsen-Johansson disease Its etilogy and natural history

Medlar & Lyne — 2007-07-11 00:53:59 GMT

JBJS A 60-A #8 1113 (1978) Full Text
In a prospective study of children with pain in the knee, eight patients (ten knees) were seen with the clinical and roentgenographic findings of Sinding-Larsen-Johansson disease. The etiology appears to be a traction tendinitis with de novo calcification in the proximal attachment of the patellar tendon, which had been partially avulsed. The patients were followed through the course of the disease, which was found to be self-limited and benign like Osgood-Schlatter disease.

Sinding-Larsen-Johansson Disease NLM Resources

myles clough — 2007-07-11 00:53:59 GMT

Google search string allintitle: site:www.ncbi.nlm.nih.gov Sinding-Larsen-Johansson
Note this is not a comprehensive PubMed Search and only looks for SLJ in the title

Sinding-Larson-Johansson disease CHORUS

Brian Funaki, MD — 2002-01-31 00:53:59 GMT

contusion and subsequent tendonitis in the proximal attachment of the patellar tendon
* can be followed by calcification, ossification, or frank inferior pole avulsion fractures that produce one or more distinct ossicles.
per Stedman's dictionary: "apophysitis of the distal pole of the patella"
symptoms:
* tenderness and soft tissue swelling over the lower pole of the patella
* aggregated by activity
xray findings:
* osseous fragmentation of patella