1868AebyCT

Christoph Aeby believed that the ligamentum capitis femoris (LCF) is the internal capsule of the joint. The author presents the classical viewpoint: the LCF does not have significant importance for joint stabilization.

The translation from German was done in collaboration with ChatGPT 3.5.

Aeby CT. Der Bau des menschlichen Körpers mit besonderer Rücksicht auf seine morphologische und physiologische Bedeutung… Erste lieferung. Leipzig: F.C.W. Vogel, 1868. [fragments]
p. 304

Fig. 130. A, Senkrechter, B, wagerechter Querschnitt des linken Hüftgelenkes. (1/2 N. G.) a, os pelvis; b, femur mit trochanter major. α, labrum glenoidale; β, lig. teres.	Fig. 130. A, Vertical, B, horizontal cross-section of the left hip joint. (1/2 N. G.) a, os pelvis; b, femur with trochanter major; α, labrum glenoidale; β, lig. teres.
pp. 305-306
Wie im Schultergelenk, so erhält auch im Hüftgelenk die Pfanne einen aus festem bindegewebigem Filze gebildeten, in scharfem Rande auslaufenden Saum (labrum glenoidale), der sie rings umzieht. Er folgt nicht bloss der Knorpelfläche, sondern geht ohne Unterbrechung auch über die von ihr gelassene Lücke hinweg. Er vergrössert daher nicht bloss die Pfanne nach den Seiten hin, sondern vervollständigt auch ihren Rand, indem er deren Einschnitt zur Oeffnung umwandelt. Die Ringform der Gelenkflächen bedingt eine ganz eigenthümliche Anordnung der Gelenkkapsel. Sie wird zu einer doppelten und begränzt die Gelenkhöhle nicht bloss, wie gewöhnlich, an Einer, sondern an zwei einander gegenüber liegenden Seiten. In unserm Falle sind die beiden Kapseln einander freilich so unähnlich, dass man nur der einen, der äussern, diese Bedeutung zugestanden hat, die andere dagegen unter dem durchaus unzutreffenden Namen des runden Bandes (lig, teres) als eine Bildung ganz eigener Art glaubte hinstellen zu sollen. Richten wir unser Augenmerk vor allem auf diese vielfach verkannte innere Kapsel (lig. capsulare int.). Sie ist nur von geringer Stärke und kann selbst, obgleich nur ausnahmsweise, ganz oder theilweise fehlen. Ihr Umfang entspricht dem Innenrande der beiden Gelenkflächen, und sie stellt demnach ein trichterförmig gegen die Pfanne erweitertes Rohr vor. An dieser umspannt sie den Pfannengrund, indem sie nach unten an den frei über dessen Einschnitt hinweggehenden Theil des labrum glenoidale sich anheftet; am Kopfe folgt sie dem innern Knorpelsaume. Ihre obere Wand ist so tief nach unten ausgestülpt, dass sie an die untere fast unmittelbar sich anlegt und mit ihr scheinbar ein einfaches, plattgedrücktes Band (eben das fälschlich sogenannte lig. teres) erzeugt, das von der incisura acetabuli steil zur Grube des Gelenkkopfes emporsteigt. Die Aussenfläche der innern Gelenkkapsel wird theils von Fett-, theils von Sehnenlagen überdeckt, welche das von ihr gebildete Rohr vollständig ausfüllen und durch den Pfanneneinschnitt frei nach aussen hervortreten.	As in the shoulder joint, the socket in the hip joint also has a lip (labrum glenoidale), made of hard connective tissue and ending sharply, which surrounds the socket on all sides. It not only follows the surface of the cartilage, but also passes through the gap created by it without interruption. Therefore, he not only widens the cavity on the sides, but also completes its edge, turning its cut into an opening. The ring shape of the joint surfaces determines a very peculiar arrangement of the joint capsule. It becomes double and confines the joint cavity not only on one side, as usual, but also on two opposite sides. In our case, both capsules are certainly so dissimilar that only one of them, the outer one, is given such importance, while the other, entirely erroneously called the round ligament (lig. teres), is considered a formation of an entirely different kind. Let's focus primarily on this often underestimated inner capsule (lig. capsulare int.). It possesses only a small degree of strength and may, although rarely, be completely or partially absent. Its extent corresponds to the inner edge of both joint surfaces, and therefore it represents a funnel-shaped tube directed towards the socket. Here it encompasses the bottom of the socket, attaching to it from below to the free part of the labrum glenoidale; on the head, it follows the inner edge of the cartilage. Its upper wall is so deeply descended downward that it practically immediately joins the lower one, creating together what appears to be a simple, flattened strip (the so-called lig. teres), which sharply rises from the incisura acetabuli to the fovea of the femoral head. The outer surface of the inner joint capsule is partially covered by layers of fat and tendons, which completely fill the tube formed by it and freely protrude outward through the incision of the socket.
p. 307
Für die Sicherung und Eindämmung des Gelenkes ist das innere Kapselband wohl ohne Bedeutung; höchstens vermag es durch seine lockern Fettmassen zur Ausgleichung etwaiger Incongruenzen einiges beizutragen.	The internal capsular ligament likely does not play a significant role in joint stabilization; at best, it may contribute to compensating for any discrepancies due to its free fat masses.
Fig. 130. A, Senkrechter, B, wagerechter Querschnitt des linken Hüftgelenkes. (1/2 N. G.) a, os pelvis; b, femur mit trochanter major. α, labrum glenoidale; β, lig. teres.	Fig. 130. A, Vertical, B, horizontal cross-section of the left hip joint. (1/2 N. G.) a, os pelvis; b, femur with trochanter major; α, labrum glenoidale; β, lig. teres.

External links

Aeby CT. Der Bau des menschlichen Körpers mit besonderer Rücksicht auf seine morphologische und physiologische Bedeutung… Erste lieferung. Leipzig: F.C.W. Vogel, 1868. [books.google , digitale-sammlungen.de]

Authors & Affiliations

Christoph Theodor Aeby (1835-1885) was a Swiss anatomist, anthropologist, and academic. [en.wikipedia.org]

Christoph Theodor Aeby (c. 1880)
Unknown author; original in the wikimedia.org collection
(CC0 – Public Domain, no changes)

Keywords

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, anatomy, role, significance

NB! Fair practice / use: copied for the purposes of criticism, review, comment, research and private study in accordance with Copyright Laws of the US: 17 U.S.C. §107; Copyright Law of the EU: Dir. 2001/29/EC, art.5/3a,d; Copyright Law of the RU: ГК РФ ст.1274/1.1-2,7

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