The blood supply of the lateral epiphyseal arteries in Perthes’ disease

Abstract

We suggest that in Perthes' disease the blood supply of the LEAs is impaired at their origin and that revascularisation occurs from this site by ingrowth of small vessels into the femoral epiphysis. This process may be the result of recurrent ischaemic episodes.

Ischial Spine Sign Reveals Acetabular Retroversion in Legg-Calvé-Perthes Disease

“…This relationship was described previously [8,9]. Acetabular retroversion leads to overcoverage of the femoral head by the anterior wall of the acetabulum [2,13,26], and it is the overhanging rim that theoretically could impinge in flexion and internal rotation against the retinacular vessels resulting in microtrauma to the vascular supply of the femoral head [2,26] (Fig. 4).…”

“…The etiology of the disease is unclear, although some investigators attribute the cause to an undefined vascular insult [2]. Proposed risk factors include coagulopathy, low birth weight, and maternal tobacco use [3,11].…”

“…The objective of this study was to assess (1) the prevalence of the PRIS sign in patients with LCP disease compared with healthy control subjects, (2) whether the PRIS sign is present at the time of head involvement in patients with LCP disease, and (3) the prevalence of bilaterality of the PRIS sign in patients with LCP disease and control subjects.…”

Legg–Calve–Perthes Disease

“…У 68% наблюдаемых были отмечены аномалии в месте отхождения этой артерии. Авторы предполагают, что кровоснабжение латераль-ных артерий нарушается в самом начале заболевания, а прорастание мелких артерий на этом участке приводит к явлениям ишемии [15].…”

Legg-Calvé-Perthes hastalığının doğal seyri

“…Yeniden kanlanma ile birlikte nekrotik kemik rezorbe olarak yerine inflamatuvar hücre-ler, fibroblast-benzeri hücreler ve osteoklastlardan L egg-Calvé-Perthes (LCP) hastalığı, femur başı epifizinin vasküler beslenmesinin bozulması sonucu epifizin bir kısmı veya tamamında avasküler nekroz gelişimidir. [1,2] Histolojik çalışmalarda, femur başı epifizinde iskemik hasara bağlı doku nekrozu gös-terilmiştir. [3] İmmatür memeli hayvanlarda femur başı kanlanmasının iyatrojenik olarak bozulduğu deneysel çalışmalarda, LCP hastalığında görülen radyolojik ve histolojik değişikliklerin benzeri oluşturulmuştur.…”