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

Test catalog of the LCF pathology

Test catalog of the ligamentum capitis femoris pathology By Sergey V. Arkhipov, MD, PhD CONTENT [i] Abstract [ii] Introduction [iii] Testing in the supine position [iv] Testing in a standing position [v] Gait study [vi] References [vii] Application [i] Abstract A description of tests for the detection and differential diagnosis of ligamentum capitis femoris (LCF) pathology is presented. [ii] Introduction One of the first studies devoted to the diagnosis of LCF injury demonstrated a variety of symptoms: groin pain, hip stiffness, sometimes long-standing minimal clinical findings, or signs similar to osteoarthritis (1997GrayA_VillarRN). More than a decade later, researchers concluded: "Unfortunately, there is no specific test for detecting LCF tears." The signs known at that time were nonspecific and were also observed in other intra-articular pathologies of the hip joint (2010CerezalL_Pérez-CarroL). The a...

Who, When, and Where Wrote the Book of Genesis?

Who, When, and Where Wrote the Book of Genesis? A Medical Hypothesis By Sergey V. Arkhipov, MD, PhD & Lyudmila N. Arkhipova, BSN CONTENT [i] Abstract [ii] Introduction [iii] Egyptian physician [iv] Asian diviner [v] Conclusion [vi] References [vii] Application [i] Abstract The Book of Genesis is an example of an ancient literary text that contains important medical insights. We propose that it was written in northern Egypt in the late 17th century BCE, approximately ten years after the Minoan eruption. The protograph likely emerged from the collaboration between an Asiatic seer, who rose to the rank of an Egyptian official, and an Egyptian physician-encyclopedist. By refining its dating and authorship, this hypothesis positions Genesis as a credible source of medical and historical data, thereby enhancing its value for interdisciplinary research. [ii] Introduction According to Rabbinic Judais...

2025ChenJH_AcklandD

The article by Chen JH, Al’Khafaji I, Ernstbrunner L, O’Donnell J, Ackland D. Joint contact behavior in the native, ligamentum teres deficient and surgically reconstructed hip: A biomechanics study on the anatomically normal hip (2025). The authors experimentally demonstrated the role of the ligamentum capitis femoris (LCF) in unloading the upper sector of the acetabulum and the femoral head. The text in Russian is available at the following link: 2025ChenJH_AcklandD Joint contact behavior in the native, ligamentum teres deficient and surgically reconstructed hip: A biomechanics study on the anatomically normal hip By Chen JH, Al’Khafaji I, Ernstbrunner L, O’Donnell J, Ackland D. CONTENT [i] Abstract [ii] Introduction [iii] Materials and methods [iv] Results [v] Discussion and Conclusion [vi] References [vii] Application [i] Abstract Background The ligamentum teres is known to contribute to hip joint stab...

2024StetzelbergerVM_TannastM

Content [i] Summary [ii] Annotation [iii] Illustrations and References [iv] Source & links [v] Notes [vi] Authors & Affiliations [vii] Keywords [i] Summary Abstract of the article Stetzelberger VM, Nishimura H, Hollenbeck JF, Garcia A, Brown JR, Schwab JM, Philippon JM, Tannast M (2024). The authors found low ligamentum capitis femoris (LCF) strength in patients with femoroacetabular impingement. A Russian translation is available at this link: 2024StetzelbergerVM_TannastM . [ii] Annotation Background: Intraarticular hip pain represents a substantial clinical challenge, with recent studies implicating lesions in the ligamentum teres as potential contributors. Even more so, damage to the ligamentum teres is particularly prevalent among young patients undergoing joint-preserving interventions. Although several studies have investigated the biomechanical attributes of the ligamentum teres,...

2025SrinivasanS_SakthivelS

The article by Srinivasan S, Verma S, Sakthivel S. Macromorphological Profile of Ligamentum Teres Femoris in Human Cadavers–A Descriptive Study (2025) is devoted to the morphology of ligamentum capitis femoris (LCF) in the Indian population. The text in Russian is available at the following link: 2025SrinivasanS_SakthivelS . Macromorphological Profile of Ligamentum Teres Femoris in Human Cadavers–A Descriptive Study By Srinivasan S, Verma S, Sakthivel S. CONTENT [i] Abstract [ii] Introduction [iii] Materials and Methods [iv] Results and Discussion [v] Conclusion [vi] References [vii] Application [i] Abstract Introduction: The ligamentum teres femoris (LTF) is an intra-articular ligament extending from fossa of acetabulum to the head of femur and is triangular or pyramidal in shape. Recent literature supports its role as a secondary stabilizer of hip and increasing evidence supports reconstructive surgery following tear...

1836-1840PartridgeR

«Prof. Partridge in his lectures on anatomy at King's College was accustomed to compare the Ligamentum Teres, in its function, to the leathern straps by which the body of a carriage is suspended on springs » ( 1874SavoryWS ). Perhaps Nikolai Pirogov listened to these lectures ( 1859PirogoffN ). The analogy that Richard Partridge used could have arisen after reading the monograph Bell J. The Principles of Surgery (1801) . In it, the author depicted a cart and a pelvis resting on the head of one and two femurs. However, there is no mention of ligamentum capitis femoris (LCF) in the chart descriptions. References Savory WS. On the use of the ligamentum teres of the hip joint. J Anat Physiol. 1874;8(2)291-6. [ ncbi.nlm.nih.gov , archive.org ] Pirogoff N. Anatome topographica sectionibus per corpus humanum congelatum triplici directione ductus illustrate. Petropoli: Typis Jacobi Trey, 1859. [ books.google , archive.org ] ...

2024GillHS

Content [i] Annotation [ii] Original text [iii] Illustrations & References [iv] Source & links [v] Notes [vi] Authors & Affiliations [vii] Keywords [i] Annotation Article by Gill HS. CORR Insights: How Strong Is the Ligamentum Teres of the Hip? A Biomechanical Analysis (2024). To clarify the role of ligamentum capitis femoris (LCF), the author recommends a combination of experimental studies with computer modeling. The text in Russian is available at the following link: 2024GillHS [ii] Original text Where Are We Now? Hip preservation surgery has seen a rapid increase in usage over the last 15 years [10], in large part driven by the groundbreaking work of Ganz et al. [5], who described the association between femoroacetabular impingement and hip osteoarthritis and who also developed effective methods of surgical dislocation that maintain the blood supply to the femoral head [4]. Arthroscopic met...

1996ChenHH_LeeMC

Abstract of the article Chen HH, Li AF, Li KC, Wu JJ, Chen TS, Lee MC. Adaptations of ligamentum teres in ischemic necrosis of human femoral head (1996). The authors investigate the strength of the ligamentum capitis femoris (LCF) in avascular necrosis and femoral neck fracture. The text in Russian is available at the following link: 1996ChenHH_LeeMC . Annotation Little is known about the biomechanical properties of human ligamentum teres. To more fully understand the ligamentum teres, its dimensions and mechanical properties were measured in 22 cases of acute fracture of the femoral neck and 21 cases of ischemic necrosis of the femoral head. The specimens first were preconditioned and then loaded to failure with a testing machine at a fast strain rate of 100% s(-1). The ischemic necrosis group had a significantly larger volume (3.09 +/- 1.81 ml versus 1.30 +/- 0.62 ml) and cross section area (65.3 +/- 59.1 mm2 versus 30.6 +/- 27.2 mm2) than did the acute f...

2025ArkhipovSV. Physicians Who Became Gods

The English translation of the artistic etude by Sergei Arkhipov « Врачи , ставшие Богами : Рационально - критическое богословие » . The etude that mentions LCF is based on the Prologue and Epilogue of the essay: Архипов СВ. Дети человеческие: истоки библейских преданий в обозрении врача . Йоэнсуу: Издание Автора, 2025. [Arkhipov SV. Human Children: The Origins of Biblical Legends from a Physician's Perspective]. Physician s Who Became Gods: Rational-Critical Theology By Sergey V. Arkhipov CONTENT The Prolegomena The Scene The play “ Immanuel ” The Divertissement The Prelude The Creation and Birth The Ministry and Teaching The Coda The Reflections a fter Word and Sound Application The Prolegomena Is it ethical to offer children, the sick, and the less educated a literal or supernatural interpretation of Genesis and the Gospels when a reasonable explanation exists? I propose a rational, interdisciplinary reading of the Scriptures from the perspective...

1904FickR

Fragments from the book Fick R. Handbuch der Anatomie und Mechanik der Gelenke, T.1 (1904). The selected passages summarizes the basic information about ligamentum capitis femoris (LCF) obtained by the beginning of the 20th century. The text is prepared for machine translation using a service built into the blog from Google. In some cases, we have added links to quotations about LCF available on our resource, as well as to publications posted on the Internet. Quote p . 315 Fig. 101. Rechtes Hüftgelenk. Frontalschnitt durch dasselbe. Hintere Schnittfläche, von vorn. Quote p. 319 Die kleine, meist ungefähr dreieckige Grube [Fovea capitis N.] im hinteren, unteren Quadranten des Kopfes ist nicht ganz mit Knorpel ausgekleidet, im oberen vorderen Teil derselben ist das sog. „runde Band” befestigt (s. unten). Daß der untere Teil der Grube durch das Sclileifeu des Bandes an ihm verbreitert und abgeflacht sei, wie z. B. Poirier angiebt, triffit nac...

Search This Blog