1990PerepichkaVD

Our translation of the patent for invention: Perepichka VD. Endoprosthesis of proximal epimethaphysis of femur bone SU1572603 (1990). The original in Russian is available at the link: 1990ПерепичкаВД.

SU1572603A1 USSR
Inventor: Valentin Dmitrievich Perepichka
Worldwide applications 1987 SU
Application SU874278315A events:
1987-07-06 Application filed by Perepichka V.D.
1987-07-06 Priority to SU874278315A
1990-06-23 Application granted
1990-06-23 Publication of SU1572603A1
Status: Expired – Lifetime

Endoprosthesis of proximal epimethaphysis of femur bone

Valentin Dmitrievich Perepichka

Abstract

The invention relates to medical equipment, namely to traumatology, and can be used for hip joint replacement. The purpose of the invention is to prevent dislocation of the endoprosthesis from the acetabulum. The invention consists of a metal-polymer curved stem 2, placed in the medullary canal of the femur. Several holes are made on its surface in two mutually perpendicular planes, which are filled with plastic. A spherical head 3 is attached to the stem 2 using a thread, the position of which is fixed with additional screws. The head of the prosthesis contains a through channel 6, which then passes through the stem and ends on the femur. A continuous large-mesh lavsan tape 8 is passed through this channel, one end of which is fixed to the bottom of the acetabulum using a washer 10, and the other end, after exiting the channel, is disconnected and passed through additionally drilled holes in the prosthesis stem and bone and ends with wrapping the femur and tying it with a taut knot. The endoprosthesis allows for stable and constant fixation of the prosthesis stem in the medullary canal and prevents possible dislocations of the head from the acetabulum.

Description

The invention relates to medicine, more specifically to traumatology, and can be used for hip replacement in case of femur fractures or joint diseases.

The purpose of the invention is to prevent dislocation of the endoprosthesis from the acetabulum.

Fig. 1 shows the prosthesis after surgery, general view; Fig. 2 - metal-polymer stem and head, general view; 10 in Fig. 3 - acetabulum, front view; in Fig. 4 - section A - A in Fig. 3; in Fig. 5 - washer with holes for fixing lavsan tape in the acetabulum, front view; in Fig. 6 - washer with holes for fixing lavsan tape in the acetabulum, side view.

The endoprosthesis of the proximal epimetaphysis of the femur 1 (Fig. 1) contains a metal-polymer stem 2, to which a spherical head 3 is screwed (Figs. 1 20 and 2). On the surface of the stem 2 a row of holes 4 are made in two mutually perpendicular planes, filled with plastic. The head 3 is fixed in its final position with screws 5. A through channel 6 is made through the head 3, the threaded shank and the metal stem 2, and holes 7 are made in all the holes 4 (Figs. 1 and 2). A double large-mesh lavsan tape 8 with a width of 6 - 7 mm is pulled through the channel 6 and the holes 7, and the tape is tightly fixed on the surface of the acetabulum 9 with the help of a washer 10 (Figs. 5 and 6) with two holes for passing the lavsan tape 8 (Figs. 5 and 6). To do this, a hole 11 is made in the acetabulum 9, where the round ligament itself was located, and a gap 2 is cut (Figs. 3 and 4). The washer 10 is pushed through the hole 11, and the lavsan tape together with the washer O is advanced into the gap 12. Thus, the lavsan tape is tightly fixed in the acetabulum. The hole 11 is closed with a transplant. Through the opening of the channel 6, a through hole 13 is drilled through the bone 1, after which the lavsan tape, fixed on the bottom of the acetabulum, is passed through the channel 6 onto the surface of the bone 1, where it is fixed with a knot 14, through the bone 1 and the leg of the prosthesis in places where it is filled with polymer, holes 7 are drilled in two mutually perpendicular planes, the tape 8 is separated into two parts and passed through the holes 7. At the end, the bone is braided with the tape 8 (Fig. 1) and fixed with a weaver's knot 15 (Fig. 1). The section of the double tape 8 between the head 3 and the acetabulum 9 forms an artificial ligament 16 (Fig. 1). The bone is braided with maximum tension. After 12-14 days, the lavsan tape, as a foreign body of the body, begins to be covered with a connective tissue capsule, which increases the strength of fixation of the prosthesis leg.

The endoprosthesis creates a positive effect, consisting in stable fixation of the prosthesis leg in the medullary canal of the femur, and this is achieved for the first time by fixing it with the help of lavsan tape by tying. Fixation is carried out with a material soft compared to bone, which eliminates the effect of this material on the bone during the life of the patient and does not allow the prosthesis leg to loosen. An important feature of the semi-prosthesis is the creation of an artificial round ligament, which prevents the likelihood of dislocation of the prosthesis and relieves the patient from operations aimed at eliminating these dislocations.

Claims

An endoprosthesis for the proximal epimetaphysis of the femur, comprising a curved metal-polymer stem, on the surface of which, in two mutually perpendicular planes, openings are made, filled with plastic, a spherical head, connected to the stem by means of a thread, characterized in that, in order to prevent dislocation of the endoprosthesis from the acetabulum, a large-mesh tape with a washer is inserted into it for fastening to the bottom of the acetabulum, and a through channel is made in the spherical head for laying the large-mesh tape.

Non-Patent Citations

Авторское свидетельство СССР № 483817, кл А 61 F 2/32, 1975

External links

Перепичка ВД. Эндопротез проксимального эпиметафиза бедренной кости. SU1572603, от 6 июля 1987. Бюл. № 23, 23.06.1990. patents.su

Perepichka VD. Endoprosthesis of proximal epimethaphysis of femur bone (Эндопротез проксимального эпиметафиза бедренной кости) SU1572603А1 July 6, 1987. 1990. patents.googleEN , patents.googleRU

Authors & Affiliations

Valentin Dmitrievich Perepichka - traumatologist-orthopedist, PhD, Kiev, Ukraine. cito-priorov.ru

Keywords

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, endoprosthesis, prosthesis, invention, unipolar, subtotal

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

BLOG CONTENT

ENDOPROSTHESES AND IMPLANTS

20th Century

Comments

1902RilkeRM

Works of art that mention ligamentum capitis femoris (LCF) are extremely rare. One such work is the poem «Der Schauende» ( He Who Visions, The Seer, The Man Watching, The Beholder) b y Rainer Rilke. Below is the original text in German. Der Schauende 1. Ich sehe den Bäumen die Stürme an, die aus laugewordenen Tagen an meine ängstlichen Fenster schlagen, und höre die Fernen Dinge sagen, die ich nicht ohne Freund ertragen, nicht ohne Schwester lieben kann. 2. Da geht der Sturm, ein Umgestalter, geht durch den Wald und durch die Zeit, und alles ist wie ohne Alter: die Landschaft, wie ein Vers im Psalter, ist Ernst und Wucht und Ewigkeit. 3. Wie ist das klein, womit wir ringen, was mit uns ringt, wie ist das groß; ließen wir, ähnlicher den Dingen, uns so vom großen Sturm bezwingen, - wir würden weit und namenlos. 4. Was wir besiegen, ist das Kleine, und der Erfolg selbst macht uns klein. Das Ewige und Ungemeine will nicht von uns gebogen sein. Das ist der Enge...

1823CooperA

According to the author, the ligamentum capitis femoris (LCF) is intended to prevent dislocations in all directions. A. Cooper discusses traumatic obturator dislocation of the hip joint and LCF injury in more detail. Cooper A. Abhandlung über Luxationen und Fracturen der Gelenke des Unterkiefers, der obern Extremitäten und der Knochen des Rumpfes. Aus dem Englischen. Weimar : Landes-Industrie-Comptoir, 1823. [fragments] Quote p. 1 4 8 Das ligamentum teres hat die Bestimmung, Luras tionen nach allen Richtungen hin zu verhindern, besonders aber nach abwärts, denn wenn die Schenkel weit ausein andergespreizt werden, wie z. B. bei'm Fechten, so würde der Kopf des linken Oberschenkelknochens in Gefahr feyn, aus seiner Gelenkhöhle zu schlüpfen, was aber durch dieses Ligament verhindert wird. The ligamentum teres is designed to prevent dislocations in all directions, especially downwards, because when the thighs are widely ab...

LCF in 2026 (May)

LCF in 2026 (May ) (Quotes from articles and books published in May 2026 mentioning the ligamentum capitis femoris) Kim, P. S., Kang, C., Lee, J. K., & Hwang, J. M. (2026). Hip arthroscopy to treat symptomatic paralabral cysts: a retrospective analysis of clinical outcomes. Arthroscopy and Orthopedic Sports Medicine , 13 (1), 27-34. [i] e-aosm.org Ko, H. Y. (2026). Vascular Anatomy of the Extremities and Lungs. In Practical Functional Anatomy for Spinal Cord Injury Rehabilitation: A Guide for Physiatrists and Rehabilitation Specialists (pp. 191-223). Singapore: Springer Nature Singapore. [ii] link.springer.com Aiba, H., Yamaguchi, M., Kimura, H., & Murakami, H. (2026). Advances in limb-salvage surgery and reconstruction for pediatric bone and soft tissue tumors. Frontiers in Pediatrics , 14 , 1817788. [iii] pmc.ncbi.nlm.nih.gov Bajwa, A., Villar, R., ...

A Novel Technique for Proximal Fixation

Arkhipov SV. A Novel Technique for Proximal Fixation of Ligamentum Capitis Femoris Reconstruction: The Gifts of the Magi for Orthopedic Surgeons. About Round Ligament of Femur. January 14, 2026. DOI: 10.13140/RG.2.2.25269.33763 https://roundligament.blogspot.com/2026/01/the-gifts-of-magi-for-orthopedic.html Abstract Purpose: To describe an experimental technique for proximal fixation in ligamentum capitis femoris (ligamentum teres femoris; LCF) reconstruction using pubic and ischial portions anchored in corresponding pelvic bone tunnels, tested on synthetic hip joint models, and to propose it’s for arthroscopic application with visualization via an inferior portal and femoral tunnel. Methods: Synthetic polyurethane bone analogs (Synbone) of the pelvis and proximal femur were used to fabricate hip joint models. Acetabular cartilage analogs were created from self-curing plastic compound. Femoral tunnels were drilled along the neck axis from the subtrochanteric region below the tub...

1740KulmusJA

Fragments from the book Kulmus JA. Tables anatomiques (1734). The author briefly writes about the anatomy, properties and attachment of the ligamentum capitis femoris (LCF). There are known translations of the treatise into Latin ( 1732KulmusJA ) and French ( 1734KulmusJA ). Quote p. 51 [Deu] Translation [Eng] с . In the upper part of the head there is a recess in which the round ligament is attached. Quote p. 54 [Deu] Translation [Eng] 2.) The round ligament is short but very strong; it arises at the bottom of the acetabulum and joins the fossa at the top of the femoral condyle. External links Kulmus JA. Anatomische Tabellen: Nebst dazu gehörigen Anmerckungen und Kupffern, Daraus des gantzen Menschlichen Cörpers Beschaffenheit und Nutzen deutlich zu ersehen; Welche Den Anfängern der Anatomie zu bequemer Anleitung verfasset hat… Nuremberg, Frankfort, Leipzig: J.A. von Creutz, MDCCXXXX [1740]. [ archive.org ] Authors & Affiliations Johann Adam Kulmus (...

Human Children. Retelling of Chapter 13

Short retelling of chapter 13 of the essay: Arkhipov S.V. Human Children: The Origins of Biblical Legends from a Physician's Perspective. Joensuu: Author's Edition, 2025. [In Russian] Chapter 13. PROPHETIC DREAMS After his wanderings and battles, Abraham settles in “Mamre’s oaks in Hebron.” Following these events, he experiences a divine “word in a vision” and a dream promising him lands “from Egypt’s river to the great river, Euphrates.” His family relocates to a desert along the Shur road, near the well “Beer-Lahai-Roi,” between Kadesh and Bered. In another divine appearance, Abraham is commanded to circumcise all males’ foreskins, rename Sarai as Sarah, and is told he’ll father a child at 100, despite Sarah’s barrenness at 89. That day, Abraham circumcises his son Ishmael, household males, and, at 99, himself. In Mamre’s oaks, during “daytime heat,” a mirage foretells fatherhood. The dream shifts, showing Sodom and Gomorrah’s destruction and Lot’s miraculous rescue. ...

LCF in 2025 (July)

LCF in 2025 ( July ) (Quotes from articles and books published in July 2025 mentioning the ligamentum capitis femoris.) Tekcan, D., Bilgin, G., & Güven, Ş. Evaluation of Risk Factors for Developmental Dysplasia of the Hip. HAYDARPAŞA NUMUNE MEDICAL JOURNAL , 65 (2), 99-103. [i] jag.journalagent.com Domb, B. G., & Sabetian, P. W. (2025). Greater Trochanteric Pain Syndrome: Gluteal Tendinopathy, Partial Tear, Complete Tear, Iliotibial Band Syndrome, and Bursitis. In Orthopaedic Sports Medicine (pp. 1-17). Springer, Cham. [ii] link.springer.com Kuhns, B. D., Becker, N., Patel, D., Shah, P. P., & Domb, B. G. (2025). Significant Heterogeneity in Existing Literature Limits Both Indication and Outcome Comparability Between Studies Involving Periacetabular Osteotomy For Acetabular Dysplasia With or Without Arthroscopy Despite Improvement for Both: A Systematic Review. Arthroscopy . [iii] ...

1851HyrtlJ

The author expresses a classic view on the functions of the ligamentum capitis femoris (LCF): a conductor of blood vessels and a limiter of adduction of the femur. J. Hyrtl believed that it was impossible to completely dislocate the hip without tearing the LCF. Hyrtl J. Lehrbuch der Anatomie des Menschen, mit Rücksicht auf physiologische Begründung und praktische Anwendung. Wien: W. Braumüller, 1851. [fragment] Quote p. 265 In der Höhle des Gelenks liegt das runde Band des Schenkelkopfes (Lig. teres), welches an der Incisura acetabuli entspringt, und bei richtiger Neigung des Beckens, senkrecht zur Grube des Schenkelkopfes aufsteigt. Es beschränkt dieses Band die Zuziehung des Schenkels, und schreibt zugleich den durch die Incisura acetabuli eindringenden Blutgefässen den Weg vor, den sie zum Oberschenkelkopfe zu nehmen haben. Da das Band, wenn es in die Höhle des Gelenkes vorragen würde, durch Reibung viel zu leiden hätte, so...

1730CheseldenW

Fragments from the book Cheselden W. The Anatomy of the Human Body (1730). The author draws attention to the role of ligamentum capitis femoris (LCF) in counteracting hip dislocation and maintaining the femoral head in the joint. The work notes that the LCF is “powerful” and “short” - “about two inches” i.e. approximately 5 cm! This error will be corrected in a subsequent treatise ( 1733CheseldenW ) . Quote pp. 43 - 44 Chap. VII. Of the Ligaments At the upper part of the articulation of the Os Femoris and Os Innominatum, is a strong ligament of great consequence; it contributing very much to preserve that joint from being luxated by the weight of the body. And from the lower edge of the Acetabulum of the Os Innominatum, runs a ligament to the middle of the head of the Os Femoris, about two inches long (which the Motion in this joint requires) called Teres, or Rotundum, whose use is to prevent the Os Femoris from being luxated upwards, but down wards it will le...

Human Children. Retelling of Chapter 14

Short retelling of chapter 14 of the essay: Arkhipov S.V. Human Children: The Origins of Biblical Legends from a Physician's Perspective. Joensuu: Author's Edition, 2025. [In Russian] Chapter 14. ESAU AND JACOB At 40, Isaac marries Rebekah, his cousin’s daughter. Their marriage is long childless until Rebekah conceives twins, detected prenatally, possibly by her large belly or palpation. Genesis states that at 60, Isaac fathers the twins, born naturally after 20 years of marriage. The first, Esau, emerges “red, all hairy like a cloak,” followed by Jacob, unremarkable but grasping Esau’s heel. Over time, their differences deepen: Esau, a skilled hunter, roams fields; Jacob, gentle, stays in tents. Famine forces the family from “Beer-Lahai-Roi” in the Negev to “Gerar’s Philistine king,” then to “Gerar’s valley,” and finally to Beersheba. At 40, Jacob, urged by Rebekah, deceives blind Isaac to steal Esau’s inheritance, sparking enmity. Rebekah advises Jacob to flee to rela...

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