2016ArkhipovaAS Classification of Joints with Flexible Elements.

Classification of Joints with Flexible Elements

The classification of joints with flexible elements was first proposed by A.S. Arkhipova in 2016 and presented at conferences in 2016-2017 (2017АрхиповаАС).

Joints with flexible elements are divided by the author into detachable and non-detachable, three-axis, two-axis, and single-axis. Each can contain in various combinations one or more external and internal flexible elements - analogs of joint ligaments, including the ligamentum capitis femoris (LCF).

Conditional designations of joints with flexible elements using the example of a ball joint:

Detachable ball joint with an internal flexible element

Non-detachable ball joint with an internal flexible element

Detachable ball joint with an external flexible element

Non-detachable ball joint with an external flexible element

Detachable ball joint with both internal and external flexible elements

Non-detachable ball joint with both internal and external flexible elements

Flexible elements can be used to secure the head in the socket, as well as to change the trajectory and range of motion of the joint. The length of the flexible elements and the location of their attachment points play an important role. Joints with flexible elements can be used inin pedipulators of walking machines, robots, and exoskeletons, as well as in endoprosthetics of human and animal joints.

Author and Organization:

Arkhipova Alexandra Sergeevna

Currently (2024) a 6th-year student at the MSU Faculty of Mechanics and Mathematics (Механико-математический факультет Московского государственного университета имени М.В. Ломоносова)

References:

Arkhipova AS. Study of properties of joints with flexible elements for biomorphic walking technology. Research work, conducted at the Lyceum of Scientific and Engineering Profile. Korolev, 2016. [in Russian] (Архипова АС. Изучение свойств шарниров с гибкими элементами для биоморфной шагающей техники. Научно-исследовательская работа, выполненная в АОУ Лицей научно-инженерного профиля. Королёв, 2016.)

Arkhipova AS. Study of properties of joints with flexible elements for biomorphic walking technology. Presentation of the report. Moscow, 2017. [in Russian] (Архипова АС. Изучение свойств шарниров с гибкими элементами для биоморфной шагающей техники. Презентация доклада. Москва, 2017.)

Keywords:

joints with flexible elements, classification

In translating to English, the author is assisted by ChatGPT (version 3.5) and the Google Translate service.

BLOG CONTENT

REVIEWS AND CLASSIFICATIONS

Comments

13c.Soligalich

Soligalich , icon, Jacob wrestling with the angel ( 13 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 wa s 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 ( 2024 АрхиповСВ. Девятый месяц, одиннадцатый день ). Soligalich – Jacob Wrestling with the Angel ( 13 cent. ); original in the leonovval...

2018WhiteBJ_HerzogMM

Article: White BJ et al. Simultaneous acetabular labrum and ligamentum teres reconstruction: a case report (2018). A case of ligamentum capitis femoris (LCF) reconstruction using a tendon graft is described. The text in Russian is available at the following link: 2018WhiteBJ_HerzogMM . Simultaneous acetabular labrum and ligamentum teres reconstruction: a case report White BJ, Scoles AM, Herzog MM CONTENT [i] Abstract [ii] Introduction [iii] Materials and Methods [iv] Results [v] Discussion & Conclusion [vi] References [vii] Application [i] Abstract This study aims to present the surgical technique for reconstructing both the acetabular labrum and the ligamentum teres and to describe the early outcomes of this procedure in a 15-year-old male with recurrent hip instability. A 15-year-old patient with recurrent left hip dislocation, hip joint instability and failed non-operative intervention presented f...

THE GIFTS OF THE MAGI FOR ORTHOPEDIC SURGEONS

Translation of the article: Архипов СВ. Новая техника проксимального крепления при реконструкции ligamentum capitis femoris: Дары волхвов ортопедическим хирургам. The text in Russian is available at the following link: 2026АрхиповСВ . A Novel Technique for Proximal Fixation of Ligamentum Capitis Femoris Reconstruction: The Gifts of the Magi for Orthopedic Surgeons S.V. Arkhipov, Independent Researcher, Joensuu, Finland CONTENT [i] Abstract [ii] Introduction [iii] Materials and Methods [iv] Technique [v] Discussion [vi] Conclusion [vii] Appendix [viii] References [ix] Structured Abstract [x] Additional material [i] Abstract An experimental technique for reconstruction of the ligamentum capitis femoris (ligamentum teres femoris) is described. The proposed method involves creating two portions of the ligament analog: a pubic portion and an ischial portion. Fixation of thes...

2025SarassaC_HerreraAM

Content [i] Annotation [ii] Original text [iii] References [iv] Source & links [v] Notes [vi] Authors & Affiliations [vii] Keywords [i] Annotation Abstract of the article : Sarassa C. et al . I ntraosseous Tunneling and Ligamentum Teres Ligamentodesis “Teretization” to Enhance S tability in Congenital Hip Dislocation Surgery: Surgical Technique and Mid-Term Outcomes (2025). The article describes a technique for fixing the femoral head using the ligamentum capitis femoris (LCF) in congenital hip dislocation. The text in Russian is available at the following link: 2025SarassaC_HerreraAM . [ii] Original text Abstract Background Developmental dysplasia of the hip (DDH) with complete dislocation (grade ≥III) in older patients often requires open reduction. However, achieving long-term stability remains challenging. This study introduces and evaluates a novel surgical technique, intraosseous tunneling ...

1976CrelinES

Content [i] Annotation [ii] Original text [iii] Illustrations [iv] Source & links [v] Notes [vi] Authors & Affiliations [vii] Keywords [i] Annotation Article : Crelin ES. An experimental study of hip stability in human newborn cadavers (1976). The author described an experimental study of the role of ligamentum capitis femoris (LCF) in stabilizing the hip joint and its significance for the occurrence of congenital hip dislocation. The text in Russian is available at the following link: 1976CrelinES . [ii] Original text (in German) An Experimental Study of Hip Stability in Human Newborn Cadavers E. S. Crelin Sections of Gross Anatomy and Orthopaedic Surgery, Yale University School of Medicine, New Haven, Connecticut 06510 Received August 21, 1975 The less frequent variety of hip dislocation occurs before birth and may be associated with neuromuscular disorders such as arthrogr...

Online Journal «ABOUT ROUND LIGAMENT OF FEMUR», January 2026

The journal is dedicated to the ligamentum capitis femoris (LCF) and related topics About the Journal »»» . The online journal « About Round Ligament of Femur » was created based on the scientific blog of the same name. The resource is the English-language part of the project: ONLINE JOURNAL: Ligamentum capitis femoris . Updates: As new materials are prepared. Mission : Popularization and preservation of knowledge about LCF, as well as promoting its practical application. Main goal: Improvement of diagnosis, treatment, and prevention of injuries and diseases of the hip joint. Publisher: Arkhipov S.V., independent researc...

LCF in 2025 (August)

LCF in 2025 ( August ) (Quotes from articles and books published in August 2025 mentioning the ligamentum capitis femoris) Castro, A., de Melo, C., & Leal, F. (2025). Complications in hip Arthroscopy: Recognizing and managing adverse events. Journal of Clinical Orthopaedics and Trauma , 103144. [i] journal-cot.com Negayama, T., Nishimura, H., Murata, Y., Nakayama, K., Takada, S., Nakashima, H., ... & Uchida, S. (2025). Factors associated with treatment failure after hip arthroscopic surgery for the patient with femoroacetabular impingement secondary to Legg-Calvé-Perthes disease. Journal of ISAKOS , 100937. [ii] jisakos.com Wegman, S. J., Shaikh, H., Brodell Jr, J. D., Cook, P. C., & Giordano, B. D. (2025). Femoral head osteochondral allograft transplantation with and without simultaneous periacetabular osteotomy: a case series. Journal of Hip Preservation Surgery , hnaf037. [iii] ...

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] ...

LCF in 2024 (September)

Publications about the LCF 2024 (September). Chen, P. L., Lu, Y. H., & Hsieh, C. P. (2024). Hip Arthroscopy-assisted Reduction for Irreducible Hip Dislocation: A Case Report. Formosan Journal of Musculoskeletal Disorders , 15 (3), 115-119. [i] journals.lww.com Domb, B. G., Owens, J. S., Lall, A. C., Harris, W. T., & Kuhns, B. D. (2024). Ten-Year Outcomes in Patients Aged 40 Years and Older After Primary Arthroscopic Treatment of Femoroacetabular Impingement With Labral Repair. The American Journal of Sports Medicine , 03635465241270291. [ii] journals.sagepub.com Rossi, F. W., Osman, M., & Mormile, I. (Eds.). (2024). Prognostic and Predictive Factors in Autoimmune Connective Tissue Disorders . Frontiers Media SA. [iii] books.google.fi Jimenez, R. Q., Walsh, E., & Domb, B. G. (2024). Revision Hip Arthroscopy: Getting It Right the Second Time. Operative Techniques in Sports Medicine , 151108. [iv] ...

LCF in 2024 (October)

Publications about the LCF 2024 ( October ) . Gänsslen, A., Lindtner, R. A., Krappinger, D., & Franke, J. (2024). Pipkin fractures: fracture type-specific management. Archives of Orthopaedic and Trauma Surgery. 1-14. [i] link.springer.com Vesey, R. M., MacDonald, A. A., Brick, M. J., Bacon, C. J., Foo, G. L., Lu, M., ... & Woodward, R. M. (2024). Imaging characteristics of hip joint microinstability: a case–control study of hip arthroscopy patients. Skeletal Radiology. 05 Oct: 1-11. [ii] link.springer.com Wu, W., Liu, M., Zhou, C., Mao, H., Wu, H., Wu, Z., & Ma, C. (2024). Efficacy of Outside‐In Hip Arthroscopy without Traction in the Treatment of Hip Synovial Osteochondromatosis. Orthopaedic Surgery. 9999:n/a. [iii] onlinelibrary.wiley.com Yang, J., Zhang, T., Zhu, X., He, Z., Jiang, X., & Yu, S. (2024). miRNA-223-5p Inhibits Hypoxia-induced Apoptosi...

Search This Blog