Articles
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6 results found
Article
Waldenström classification of Perthes disease
The Waldenström classification of Perthes disease refers to x-ray abnormalities and represents four temporal phases of the disease. These stages have been further subdivided in the modified Elizabethtown classification 2.
stage I: early
asymmetric femoral epiphyseal size (smaller on the affect...
Article
Enneking surgical staging system
The Enneking surgical staging system (also known as the MSTS system) is based on tumor grade, local spread and metastatic disease of malignant musculoskeletal tumors.
It does not classify skull tumors or marrow-originating tumors (e.g. lymphoma, plasmacytoma / multiple myeloma, Ewing sarcoma) 1...
Article
Osteochondritis dissecans (surgical staging)
Osteochondritis dissecans can be classified at surgery into 4 stages:
stage I
stable
lesion in continuity with the host bone
covered by intact cartilage
stage II
stable on probing
partial discontinuity of the lesion from the host bone
stage III
unstable on probing
fragment not dislocat...
Article
Catterall classification of Perthes disease
The Catterall classification of Perthes disease is based on radiographic appearances of the epiphysis and metaphysis visible in osteonecrosis of the femoral head:
stage I
bone absorption changes visible in the anterior aspect of the epiphysis of femoral head
changes are visible best in frog l...
Article
Salter-Thompson classification of Perthes disease
The Salter-Thompson classification of Perthes disease simplifies the Catterall classification into two groups. Based on the radiographic crescent sign, we can distinguish:
group A: including Catteral groups I and II, where the crescent sign involves less than 50% of the femoral head
group B: i...
Article
Rhabdomyosarcoma (staging)
Rhabdomyosarcoma staging is based on the Lawrence/Gehan staging system, which comprises of a combination of pretreatment staging and postoperative clinical grouping.
Stage
stage I: orbit, eyelid, head and neck (excluding parameningeal), genitourinary (non-bladder, non-prostate), N0 or 1, M0
s...
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