1990DudkoGE

Our translation of the patent for invention: Dudko GE. Method of endoprosthetics of proximal end of femur SU1551366 (1990). The original in Russian is available at the link: 1990ДудкоГЕ.

SU1551366A1 USSR
Inventor: Gennady Evtikhievich Dudko
Worldwide applications 1986 SU
Application SU864139860A events:
1986-10-29 Application filed by Dudko Gennadij E
1986-10-29 Priority to SU864139860A
1990-03-23 Application granted
1990-03-23 Publication of SU1551366A1
Status: Expired – Lifetime

Method of endoprosthetics of proximal end of femur

Gennady Evtikhievich Dudko

Abstract

Изобретение относится к медицине, а именно к ортопедии и травматологии, и используется при эндопротезировании проксимального конца бедренной кости. С целью профилактики смещения головки протеза и обеспечения движения в раннем послеоперационном периоде производят резекцию измененной части бедренной кости, устанавливают полимер-титановый эндопротез, формируют каналы в области дна вертлужной впадины, в головке и шейке эндопротеза, в большом вертеле, проводят через них ленту и фиксируют ее концы.

Description

In the lateral position, the hip joint area is opened. The proximal end of the femur is exposed. The head of the femur with the remains of the neck is removed. A bed for the endoprosthesis is formed in the medullary cavity of the femur. Two holes are made with an awl in the subtrochanteric region of the femur for the artificial tape. The polymer-titanium prosthesis is installed by inserting the endoprosthesis stem into the medullary cavity of the femur until it stops in the intertrochanteric region. The remains of the round ligament are removed in the area of the bottom of the acetabulum. A channel with a diameter of 6-8 mm is formed at the place of its attachment with a drill, through which the end of the tape with a dumbbell-shaped stop is inserted into the pelvic cavity. The tape is pulled by the ends and it is made sure that the dumbbell-shaped stop rests against the bottom of the acetabulum. The free ends of the tape are passed through a pre-formed Y-shaped channel in the head and neck of the endoprosthesis and the corresponding holes in the greater trochanter using a wire loop. The head of the endoprosthesis is adjusted into the acetabulum, the hip is bent to an angle of 90° and moved outward as much as possible, the tape is pulled by the ends and tied or sutured in the subtrochanteric region. The damaged structures are sutured layer by layer: the joint capsule, muscles, fascia, subcutaneous tissue and skin. The limb is placed on an orthopedic pillow in a mid-physiological position. Movements in the joint are developed from the second day. After 5-7 days, patients learn to walk on crutches without support on the operated limb.

Example. Patient O., a pensioner, was hospitalized for a closed fracture of the right femoral neck. X-ray showed a subcapital fracture of the right femoral neck with displacement. He was treated with skeletal traction for 5 weeks. The treatment was ineffective. An endoprosthetic replacement surgery was performed using the traditional technique with a polymer-titanium endoprosthesis with the formation of a ligament between the head of the prosthesis and the bottom of the acetabulum using the described technique. The postoperative period was uneventful. Movements in the hip joint began on the second day, on the fifth day he was raised on crutches without support on the operated leg. The stitches were removed on the 12th day. He was examined two years later: he walks freely, over long distances without a cane. He fully cares for himself. There is no shortening of the limb. Range of motion in the operated joint: flexion 80°, extension 175°, abduction 35°, outward rotation 35°, inward rotation - 15°. Control radiographs of the right hip joint show no signs of arthrosis, the endoprosthesis stem is in the bone marrow cavity, oriented toward the center of the acetabulum. There are no signs of osteoporosis or subluxation. Five people were operated on using this technique with good results.

Thus, the proposed method prevents displacement of the endoprosthesis head during unipolar endoprosthetics and ensures patient activation in the early postoperative period.

Claims

A method for endoprosthetic replacement of the proximal end of the femur by resecting the altered portion of the femur with subsequent installation of an endoprosthesis, characterized in that, in order to prevent displacement of the head of the prosthesis and ensure movement in the early postoperative period, channels are formed in the area of the bottom of the acetabulum, in the head and neck of the endoprosthesis, a tape is passed through them and its ends are fixed.

Non-Patent Citations

Каплан А. В. Травматология пожилого возраста. М.: Медицина, 1977, с. 222-235.

External links

Дудко ГЕ. Способ эндопротезирования проксимального конца бедра. SU1551366А1, от 29 октября 1986. Бюл. №11, 23.031990. patents.su

Dudko GE. Method of endoprosthetics of proximal end of femur (Способ эндопротезирования проксимального конца бедра) SU1551366A1 October 29, 1986. 1990. patents.googleEN , patents.googleRU

Authors & Affiliations

Gennady Evtikhievich Dudko (1938-2024), traumatologist-orthopedist, professor, Chernivtsi, Ukraine bsmu.edu.ua

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

1916WalmsleyT

Article by Walmsley T. A note on the retinacula of Weitbrecht (1916). The author discusses the embryonic development and relationships of the ligamentum capitis femoris (LCF) in humans and animals. A NOTE ON THE RETINACULA OF WEITBRECHT. By THOMAS WALMSLEY, M.B., Senior Demonstrator in Anatomy, University of Glasgow. The synovial membrane of the hip-joint is in extent and attachment similar to that of other diarthroses, but the retinacula of Weitbrecht (or ligaments of Stanley) lend to it a special interest. These retinacula are readily recognized on the interior of the capsule as flattened bands passing inwards towards the margin of the head of the femur from the attachment of the peripheral capsule. The following description of their constitution may be selected as expressive of current opinion. The retinacula are arranged in three groups, superior, middle, and inferior: structurally, they are synovial covered capsular reflections: morphologic...

LCF in 2026 (August)

LCF in 2026 (August ) (Quotes from articles and books published in August 2026 mentioning the ligamentum capitis femoris) Maldonado, D. R., Schab, A. R., & Domb, B. G. (2026). Improvement in Patient‐Reported Outcomes, High Rate of Return to Sport, and Secondary Surgery Rate Ranging From 0% to 9.8% After Hip Arthroscopy in Dancers and Athletes in Flexibility Sports: A Systematic Review. Arthroscopy, Sports Medicine, and Rehabilitation , e70020. [i] arthroscopyjournals.onlinelibrary.wiley.com Klingele, K., & Strub, D. (2026). Author Response: Considerations and Challenges in Open Reduction With Ligamentum Teres Reconstruction for Pediatric Developmental Dysplasia of the Hip. Journal of Pediatric Orthopaedics . [ii] ovid.com Quesada‐Jimenez, R., Rana, K., Strok, M. J., Kahana‐Rojkind, A. H., Burt, A. K., Sugarman, E. P., & Domb, B. G. (2026). Dual Labral and Ligamentum Ter...

1914JonesFW_MorrisH

We are publishing a chapter from the fifth edition of «Morris's Human Anatomy» (1914). A significant portion of it is dedicated to the ligamentum capitis femoris (LCF). The original text has been edited by Wood Jones. Particularly notable are the illustrations depicting the LCF. Some of them are improved drawings by the first author ( 1879MorrisH ). Quote pp. 276-284 1. THE HIP-JOINT Class. — Diarthrosis. Subdivision. — Enarthrodia. The hip is the most typical example of a ball-and-socket joint in the body, the round head of the femur being received into the cup-shaped cavity of the acetabulum. Both articular surfaces are coated with cartilage, that covering the head of the femur being thicker above where it has to bear the weight of the body, and thinning out to a mere edge below; the pit for the ligamentum teres is the only part uncoated, but the cartilage is somewhat heaped up around its margin. Covering the acetabulum, the cartilage is horseshoe-shaped, a...

1861HoldenL

Fragments from the book Holden L. Human Osteology (1861). The author discusses the attachment and anatomy of the ligamentum capitis femoris (LCF) . 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 pp. 1 66-167 Acetabulum. Lastly, we come to the "acetabulum." This is so named from its resemblance to an ancient vinegar cup. Observe its great depth and hemispherical form adapted for the secure lodgement of the head of the thigh-bone, and for more or less movement in any direction. It looks downwards and outwards so as to transmit the weight of the trunk directly on to the head of the thigh-bone; and the upper or iliac portion of it is by far the thickest and strongest, since it has to support the whole weight of the trunk in the erect posture. All these points are of interest, because they are characteristic of the human skeleton. There are two notches in the margin or "br...

LCF in 2025 (January)

LCF in 2025 (January) : Quotes from articles and books published in March 2025 mentioning the ligamentum capitis femoris. Alany, A. M. S., Rasul, D., Berzenji, A. I. H., & Berzenji, A. (2025). Early Outcomes of Arthroscopic Versus Open Reduction for Developmental Dysplasia of the Hip in Children: A Randomized Controlled Trial. Cureus , 17 (1). [i] assets.cureus.com Lovelace, D. M., Kufner, A. M., Fitch, A. J., Curry Rogers, K., Schmitz, M., Schwartz, D. M., ... & Teran, R. (2025). Rethinking dinosaur origins: oldest known equatorial dinosaur-bearing assemblage (mid-late Carnian Popo Agie FM, Wyoming, USA). Zoological Journal of the Linnean Society , 203 (1), zlae153. [ii] academic.oup.com Rashwan, A. S., El-Desouky, M., Elbarbary, H., Madbouly, M. A. E., & Khedr, A. (2025). Arthroscopic-assisted reduction for Developmental Hip Dysplasia (DDH) through the sub-adductor ...

14c.Chora_Church

Chora Church (Mosque) in Istanbul, fresco – «Jacob Wrestling with the Angel» (14th cent.). Depicting the circumstances and mechanism of the ligamentum capitis femoris (LCF) injury based on the description in the Book of Genesis: 25 And Ja cob was left alone; and there wrestled a man with him until the breaking of the day. 26 And when he saw that he could not pre vail against him, he struck against the hollow of his thigh ; and the hollow of Jacob's thigh was put out of joint, as he was wrestling with him. … 33 Therefore do the children of Israel not eat the sinew which shrank, which is upon the hollow of the thigh, unto this day; because he struck against the hollow of Jacob's thigh on the sinew that shrank. ( 1922LeeserI , Genesis (Bereshit) 32:25-26,33) More about the plot in our work: Ninth month, eleventh day ( 2024АрхиповСВ. Девятый месяц, одиннадцатый день ). Unknown author – «Jacob Wrestling with the Angel» (14th cent.) fresco Cho...

16с.Archangel_Michael

Icon «Michael the Archangel (in deeds)», stigma «The struggle of Jacob with the angel» (16th cent.). Depicting the circumstances and mechanism of the ligamentum capitis femoris (LCF) injury based on the description in the Book of Genesis: 25 And Ja cob was left alone; and there wrestled a man with him until the breaking of the day. 26 And when he saw that he could not pre vail against him, he struck against the hollow of his thigh ; and the hollow of Jacob's thigh was put out of joint, as he was wrestling with him. … 33 Therefore do the children of Israel not eat the sinew which shrank, which is upon the hollow of the thigh, unto this day; because he struck against the hollow of Jacob's thigh on the sinew that shrank. ( 1922LeeserI , Genesis (Bereshit) 32:25-26,33) More about the plot in our work: Ninth month, eleventh day ( 2024АрхиповСВ. Девятый месяц, одиннадцатый день ). Unknown author – Icon «Michael the Archangel (in deeds)»...

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...

150-200Pseudo-Galen

Fragment from the treatise Pseudo-Galen Introduction, or the Physician ( Εἰσαγωγὴ ἢ Ἰτρός ; Introductio, seu Medicus; ca. 150-200 [our opinion]). The author notes the connecting function of the ligamentum capitis femoris (LCF) and also specifies the proximal and distal attachment sites. See our commentary at the link: 150-200Pseudo-Galen [Rus]. Quote [Grc] Εἰσαγωγὴ ἢ Ἰτρός . K εφ . ιβ . [ Περί όστεολογἰας .] μηρου δέ έν μεν οστούν . συμβάλλει δε επικεκαμμένη μετρίως τη κεφαλή αυτού εις βαθείαν κοτύλην του ισχίου και νεύρῳ απήρτηται εκφυομένω εκ μέσης της κοτύλης και εμφυομένω εις μέσην την κεφαλήν του μηρού . (original source: 1827KühnCG, pp. 723-724) [Lat Introductio, seu Medicus. Cap. XII. [De osteologia] Femoris os unum est, cujus caput leniter reflexum in coxae profundum sinum conjicitur. Quam commissuram nervus, qui e medio sinu prodit et in medium femoris caput inseritur, continet. (original source: 1827KühnCG, pp. 723-724) Translation [Eng] Introduction, or the Phy...

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 (...

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