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LCF in 2024 (January – March)

 

Gulati, A., & Desai, V. (2024, April). Return to Play in the Professional Athlete. In Seminars in Musculoskeletal Radiology (Vol. 28, No. 02, pp. 107-118). Thieme Medical Publishers, Inc.[i] thieme-connect.com 

Zhao, Z., Fan, C., Wang, S., Wang, H., Deng, H., Zeng, S., ... & Qiu, X. (2024). Single-nucleus RNA and multiomics in situ pairwise sequencing reveals cellular heterogeneity of the abnormal ligamentum teres in patients with developmental dysplasia of the hip. Heliyon. March 15, e27803.[ii]  cell.com

Zhang, Y., Weng, L., Zhang, G., Zhou, H., Liu, X., & Cao, Y. (2024). Arthroscopic debridement and reduction is an effective procedure for failed closed reduction in young children with developmental dislocation of the hip. International Orthopaedics, 13 March, 1-9.[iii] link.springer.com

Heerey, J. J., Souza, R. B., Link, T. M., Luitjens, J., Gassert, F., Kemp, J. L., ... & Crossley, K. M. (2024). Defining hip osteoarthritis feature prevalence, severity, and change using the Scoring of Hip Osteoarthritis with MRI (SHOMRI). Skeletal Radiology, 09 March, 1-11.[iv] link.springer.com

PALÁSEK, P., MAŠÁT, P., & ŘEHÁČEK, V. (2024). Totální endoprotéza kyčelního kloubu za použití AMIS přístupu: operační technika, vhodnost přístupu u obézních pacientů, hodnocení souboru. Acta Chir Orthop Traumatol Cech, 91(1), 24-33.[v]   openurl.ebsco.com

Ömeroğlu, H., Kapıcıoğlu, M. İ. S., & Korkusuz, F. (2024). Newborn hip screening experience in Türkiye. Exploration of Musculoskeletal Diseases, 2(1), 69-74. [vi] explorationpub.com

Hung, N. N. (2024). Outcomes of Temporary Hemiepiphyseal Stapling for Correcting Genu Valgum in Children. EC Paediatrics, 13, 01-26.[vii] ecronicon.net

Ohlsen, S. M., Metz, A. K., Froerer, D. L., Mortensen, A. J., Smith, T. R., Featherall, J., ... & Aoki, S. K. (2024). Relationship Between Hip Capsular Thickness and Instability After Previous Hip Arthroscopic Surgery: A Matched-Cohort Analysis. Orthopaedic Journal of Sports Medicine, 12(3), 23259671241231763.[viii]  journals.sagepub.com

Lim, D. P., Lazaro, L. E., Kyhos, J. F., Chau, M. M., Ladnier, K. J., Nelson, T. J., ... & Metzger, M. F. (2024). Contributions of the Abductor Muscles to Rotational and Distractive Stability of the Hip in a Biomechanical Cadaveric Model. Orthopaedic Journal of Sports Medicine, 12(3), 23259671241231984.[ix] journals.sagepub.com

Baheti, N. C., & Phansopkar, P. (2024). Impact of Early Rehabilitation in a Four-Year-Old Patient With Developmental Dysplasia of Hip: A Case Report. Cureus, 16(2).[x] cureus.com , assets.cureus.com.pdf 

Boos, A. M., Nagelli, C. V., Okoroha, K. R., Sierra, R. J., Krych, A. J., & Hevesi, M. (2024). Primary Hip Arthroscopy in Patients With Acetabular Dysplasia: A Systematic Review of Published Clinical Outcomes at Minimum 5-Year Follow-up. The American Journal of Sports Medicine, 03635465231197177.[xi] journals.sagepub.com

Chen, X., Liu, J., Xue, M., Zou, C., Lu, J., Wang, X., & Teng, Y. (2024). Risk factors of developmental dysplasia of the hip in infants: a meta-analysis based on cohort studies. Orthopaedics & Traumatology: Surgery & Research, 103836.[xii] sciencedirect.com

Cook, J. L., Rucinski, K., Wissman, R., Crecelius, C., DeFroda, S., & Crist, B. D. (2024). Outcomes following open acetabular labrum reconstruction: Comparing fresh-frozen tendon with fresh meniscus allograft transplantation. Journal of Orthopaedics. 53: 13-19.[xiii] sciencedirect.com

Douvlis, G., Tsiridis, C. A., Gamie, Z., Mpintoudi, A., Milonakis, N., Kenanidis, E., ... & Bintoudi, A. (2024). Acetabular Reconstruction in a Rare Case of Ligamentum Teres Tenosynovial Giant Cell Tumour (TGCT) Causing Extensive Destruction. Cureus, 16(1), e52171.[xiv] cureus.com , assets.cureus.com.pdf

Du, M. H., Xu, R. J., Li, W. C., & Zhu, H. Y. (2024). Low osteotomy cut of Dega procedure for older children with developmental dysplasia of the hip. Journal of Pediatric Orthopaedics B, 10-1097/BPB.0000000000001163, February 27, 2024.[xv] journals.lww.com

Faldini, C., Di Martino, A., Brunello, M., Stefanini, N., Puteo, N., Pilla, F., ... & Traina, F. (2024). The Medium-to Long-Term Results of Vascular-Sparing Subcapital Osteotomy (VASSCO) for Pediatric Patients with Chronic Slipped Capital Femoral Epiphysis. Journal of Clinical Medicine, 13(4), 1021.[xvi] mdpi.com

Ferrer-Rivero, J., Chahla, J., Lizano-Diez, X., Andriola, V., López-Zabala, I., Soler-Cano, A., & Tey-Pons, M. (2024). Hip Arthroscopy is an Effective Treatment for High-Level Female Athletes. Journal of ISAKOS. 23 February.[xvii] sciencedirect.com

Hafed, A. B., Koretsky, I. A., Nance, J. R., Koper, L., & Rahmat, S. J. (2024). New Neogene fossil phocid postcranial material from the Atlantic (USA). Historical Biology, 1-20.[xviii] tandfonline.com

Liu, Y., Kan, L., Huang, J., Sun, J., & Zhang, Y. (2024). Open reduction after failed closed reduction following failed Pavlik harness treatment in developmental dysplasia of the hip: One-or two-stage?. Archives of Orthopaedic and Trauma Surgery, 1-7.[xix] link.springer.com

Sauer, F. J., Hellige, M., Beineke, A., & Geburek, F. (2024). Osteoarthritis of the coxofemoral joint in 24 horses: Evaluation of radiography, ultrasonography, intra‐articular anaesthesia, treatment and outcome. Equine Veterinary Journal. Jan 7.[xx] beva.onlinelibrary.wiley.com

Funston, G. F. (2024). Osteology of the two-fingered oviraptorid Oksoko avarsan (Theropoda: Oviraptorosauria). Zoological Journal of the Linnean Society, zlae011.[xxi] academic.oup.com

Słowiak, J., Brusatte, S. L., & Szczygielski, T. (2024). Reassessment of the enigmatic Late Cretaceous theropod dinosaur, Bagaraatan ostromi. Zoological Journal of the Linnean Society, zlad169.[xxii] academic.oup.com  

Al'Khafaji, I., Olszewski, Y., Clarnette, G., Settle, E., Ernstbrunner, L., O'Donnell, J., & Ackland, D. (2024). The contribution of the ligamentum teres to the hip fluid seal: A biomechanics study. Clinical Biomechanics, 112, 106186.[xxiii] clinbiomech.com , pubmed.ncbi.nlm.nih.gov

Bourgeault-Gagnon, Y., Cohen, D., & Ayeni, O. R. (2024). Editorial Commentary: Borderline Hip Dysplasia Combined With Increased Anteversion and Ligamentum Teres Disruption Is a Recipe for Hip Microinstability. Arthroscopy: The Journal of Arthroscopic & Related Surgery, 40(3), 752-753.[xxiv] arthroscopyjournal.org , pubmed.ncbi.nlm.nih.gov

Wu, J. Y., Li, W., Xu, L. Y., Zheng, G., Chen, X. D., & Shen, C. (2024). Ligamentum teres tears and increased combined anteversion are associated with hip microinstability in patients with borderline dysplasia. Arthroscopy: The Journal of Arthroscopic & Related Surgery, 40(3), 745-751.[xxv] arthroscopyjournal.org

Flores, D. V., Foster, R. C., Sampaio, M. L., & Rakhra, K. S. (2024). Hip Capsulolabral Complex: Anatomy, Disease, MRI Features, and Postoperative Appearance. RadioGraphics, 44(2), e230144.[xxvi] pubs.rsna.org , pubmed.ncbi.nlm.nih.gov

Iannotti, J., Parker, R., Mroz, T., Patterson, B., & Abelson, A. (Eds.). (2024). The Netter Collection of Medical Illustrations: Musculoskeletal System, Volume 6, Part III-Biology and Systemic Diseases: The Netter Collection of Medical Illustrations: Musculoskeletal System, Volume 6, Part III-Biology and Systemic Diseases-E-Book. Elsevier Health Sciences.[xxvii] books.google.fi

Shimizu, J., Fujita, H., Tateda, K., Kosukegawa, I., & Teramoto, A. (2024). Revascularization of a Necrotic Femoral Head in Severely Slipped Capital Femoral Epiphysis With a Modified Dunn Procedure: A Case Report. Cureus, 16(2), e53530.[xxviii] cureus.com , assets.cureus.com.pdf

Spencer AD, Hagen MS. (2024) Predicting Outcomes in Hip Arthroscopy for Femoroacetabular Impingement Syndrome. Current Reviews in Musculoskeletal Medicine. 17(3): 59–67.[xxix] ncbi.nlm.nih.gov

Thirumaran, A.J., Murphy, N.J., Fu, K., Hunter, D.J. (2024) Femoroacetabular impingement - What the rheumatologist needs to know. Best Pract Res Clin Rheumatol. Feb 8:101932.[xxx] pubmed.ncbi.nlm.nih.gov

Wang, H., Wang, D., Wan, J., Wang, X., & Hou, R. (2024). Method for reconstructing femoral head blood supply by anastomosing the intraosseous artery. Heliyon, 10(3), e25555.[xxxi] ncbi.nlm.nih.gov

White BJ, Ericson JrWB. (2024) Hip pain: Surgical treatment of an unstable hip: Labral and ligamentum teres reconstruction and periacetabular osteotomy (PAO). In: Francomano CA et al (Eds). Symptomatic. Elsevier, 547-553.[xxxii] sciencedirect.com

Xiong, X., Chen, W., Chen, C., Li, C., Tan, H., & Wu, A. (2024). Comparative analysis of hip arthroscopy and open surgical dislocation for treating femoroacetabular impingement. International Wound Journal, 21(2), e14634.[xxxiii]   onlinelibrary.wiley.com  

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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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[i] Suspected labral tears in the hip or shoulder, certain ligamentous evaluation such as UCL tears in the elbow, injuries of the ligamentum teres in the hip, or imaging the postoperative joint are typical indications for MR arthrography, …

[ii] Conclusions. For the first time, we elucidated the cellular heterogeneity of the abnormal ligamentum teres in patients with DDH at the single-cell and spatial levels using snRNA-Seq and MiP-Seq, which allowed us to construct a single-cell map of the ligamentum teres. We found that receptor-like cells and ligament stem cells are closely associated with the pathogenesis of DDH. Moreover, ligament stem cells appear to be involved in the regulation of ECM metabolism and play an essential role in the pathological changes leading to ligamentum teres thickening and hypertrophy. Eight ligand–receptor pairs related to the ECM–receptor pathway were identified to be closely linked to DDH. Finally, we believe that pericytes in the ligamentum teres could potentially serve as a source of ligament stem cells and fibroblasts. 

[iii] All 58 hips showed safe zone improvement and concentric reduction after arthroscopic debridement. Hypertrophic ligamentum teres and thickened pulvinars were detected and resected in all hips. Constrictive capsules preventing reduction were observed in 15 hips, which needed to be further released. 

[iv] Of the remaining features, only ligamentum teres tears and paralabral cysts affected more hips at follow-up than baseline (Supplementary information 2%). ... For example, cartilage defects, labral tears, and ligamentum teres tears were not allowed to improve over time. 

[v] Osteofyty, labrum, měkké tkáně a zbývající lig. teres jsou nyní odstraněny z acetabula a je vyčištěna fossa acetabuli. 

[vi]  Korkusuz [6] was the very first surgeon who used ligamentum teres as a stabilizer and repositioned it to the center of the acetabulum with the aid of a button placed on the medial wall of the acetabulum in the late diagnosed patients treated by combined open reduction and pelvic and femoral osteotomies. Korkusuz Z. A new technic in the surgical treatment of congenital hip dislocation. Z Orthop Ihre Grenzgeb. 1986;124:252–5. German. DOI  PubMed

[vii] In humans and cats, the femoral capital growth plate can be partially supplied with blood via branches of the artery of the ligament of the femoral head (epiphysis); however, no such blood supply exists in dogs.

[viii] Classically, the hip is considered a constrained joint, with its stability achieved by both osseous congruity between the femoral head and acetabulum as well as nonosseous structures, including the acetabular labrum, ligamentum teres, and hip capsule ligaments.20,29,32 20. Mortensen AJ, Metz AK, Froerer DL, Aoki SK. Hip capsular deficiency: a cause of post-surgical instability in the revision setting following hip arthroscopy for femoroacetabular impingement. Curr Rev Musculoskelet Med. 2021;14(6):351-360. Crossref PubMed Google Scholar 29. Safran MR. Microinstability of the hip: gaining acceptance . J Am Acad Orthop Surg. 2019;27(1):12-22. Crossref PubMed Google Scholar 32. Telleria JM, Lindsey DP, Giori NJ, Safran MR. An anatomic arthroscopic description of the hip capsular ligaments for the hip arthroscopist. Arthroscopy. 2011;27(5):628-636. Crossref PubMed ISI Google Scholar

[ix] Many factors contribute to hip stability. Static stabilizers include the osseous ball-and-socket morphology, capsuloligamentous structures (ie, iliofemoral, ischiofemoral, and pubofemoral ligaments), zona orbicularis, ligamentum teres, and synovial fluid suction seal generated by the femoral head, labrum, and transverse acetabular ligament.7 , 13 , 23 7. Crawford MJ, Dy CJ, Alexander JW, Thompson M, Schroder SJ, Vega CE, et al. The 2007 Frank Stinchfield Award. The biomechanics of the hip labrum and the stability of the hip. Clin Orthop Relat Res. 2007;465:16-22. Crossref PubMed ISI Google Scholar 13. Ito H, Song Y, Lindsey DP, Safran MR, Giori NJ. The proximal hip joint capsule and the zona orbicularis contribute to hip joint stability in distraction. J Orthop Res. 2009;27(8):989-995. Crossref PubMed ISI Google Scholar  23. Van Arkel RJ, Amis AA, Cobb JP, Jeffers JRT. The capsular ligaments provide more hip rotational restraint than the acetabular labrum and the ligamentum teres. Bone Joint J. 2015;97(4):484-491. Crossref PubMed Google Scholar

[x] The femoral head and articular cartilage develop distally. In the meanwhile, autolysis occurs in the intermediate layer, resulting in the formation of ligamentum teres, synovial membrane, and joint space. It is possible to identify the hip joint by the eleventh week. But, during intrauterine growth, an important difference appears: the acetabulum develops more slowly than the femoral head, which leaves the former with inadequate covering. Any break in their communication triggers aberrant growth. An abnormal connection between the acetabulum and femur is caused by prolonged swaddling in an extreme posture, where the hip is stretched, adducted, and immovable, which prevents the hip from developing normally. Interestingly, the acetabulum keeps growing until a child is five years old. Chronic alterations brought on by persistent misalignment include thickening of the ligamentum teres, hypertrophy of the capsule, and development of a neolimbus, or thicker acetabular border. 

[xi] An additional study by Maldonado et al 28 also perform a matched-pair controlled study; however, comparison was between patients with and without ligamentum teres tears (LTTs). 

[xii] … relaxin in the ligamentum teres of female infants who undergo open reduction for developmental dysplasia …

[xiii] Labral reconstruction is performed using autografts (e.g., ligamentum teres, joint capsule, rectus femoris, fascia lata, iliotibial band, gracilis tendon, quadriceps tendon) or allografts (e.g., anterior and posterior tibialis, semitendinosus, and peroneus brevis tendons, fascia lata) through either an open or arthroscopic approach.

[xiv] Intraoperatively, the lesion depicted in the scans was present from the acetabular fovea and migrating along the ligamentum teres, destroying the femoral head at the insertion of the ligamentum teres towards the middle of the femoral head (Figures 8-10). 

[xv] Then the hypertrophied acetabular ligamentum teres and transverse ligament, the contractural soft tissue in the acetabulum were excised via a T-shaped incision to the capsule in cases of subluxated or dislocated hip. 

[xvi] According to this technique, a trochanteric osteotomy is performed; the ligamentum teres is transected, retaining the subperiosteal pane with the vascular structures; and after that, the joint is anteriorly dislocated. The femoral head deformity is evaluated and corrected using a subcapital osteotomy, which is fixed afterward.

[xvii] It has been reported that females present a higher prevalence of intra-articular and extra-articular hip injuries, including labral and ligamentum teres pathology, psoas impingement, proximal hamstring and gluteal tendinopathy, ischiofemoral impingement, stress fractures, and nerve entrapment syndromes (15). ... Athletes participating in flexibility sports (FS) demonstrated higher rates of cartilage lesions and tears of the round ligament after FAI surgery compared to athletes in other sports (14). 14. B.R. Saks, P.F. Monahan, D.R. Maldonado, A.E. Jimenez, H.K. Ankem, P.W. Sabetian, et al. Pathologic Findings on Hip Arthroscopy in High-Level Athletes Competing in Flexibility Sports Am J Sports Med, 50 (4) (2022), 10.1177/03635465221077002 Google Scholar  15. K.R. Shibata, S. Matsuda, M.R. Safran Arthroscopic hip surgery in the elite athlete: Comparison of female and male competitive athletes Am J Sports Med, 45 (8) (2017), 10.1177/0363546517697296  Google Scholar

[xviii] They lost or show a strong reduction of the ligamentum teres on their femora.

[xix] … was routinely performed followed by a capsulorrhaphy including removal of the ligamentum teres and transection of the transverse acetabular ligament to create space for the reduction.

[xx] An interesting observation during necropsy was that gross pathological findings were closely associated with joint instability in all investigated horses. In five out of seven horses partial or complete rupture of the Ligamentum capitis ossis femoris could be observed,3-5 suggesting joint instability to be a key pathogenetic factor for OA of the CFJ. Due to the frequent history of trauma, it is more likely that rupture of the ligaments of the head of the femur is rather the trigger than the consequence of OA, although rupture secondary to degeneration of the ligament has to be considered.  3. Paulussen E, Versnaeyen H, Deneut K, Chiers K, van Loon G. Sidewinder syndrome associated with partial rupture of the ligamentum capitis ossis femoris. Vet Rec Case Rep. 2018; 6(1): e000505. https://doi.org/10.1136/vetreccr-2017-000505 Google Scholar  4. Lamb CR, Morris EA. Coxofemoral arthrosis in an aged mare. Equine Vet J. 1987; 19(4): 350–352. https://doi.org/10.1111/j.2042-3306.1987.tb01432.x CAS PubMed Web of Science® Google Scholar   5. Aleman M, Berryhill E, Woolard K, Easton-Jones C, Kozikowski-Nicholas T, Dyson S, et al. Sidewinder gait in horses. J Vet Intern Med. 2020; 34(5): 2122–2131. https://doi.org/10.1111/jvim.15870 PubMed Web of Science® Google Scholar

[xxi] There is no rugosity for the capitate ligament, although this area is damaged in the larger MPC-D 102/12.

[xxii] The surface of the rounded femoral head is rugose. In posterior view, a wide groove for the capital ligament is present on the femoral head.

[xxiii] Conclusion. The ligamentum teres plays a significant role in maintaining the suction seal of the hip, with its effect being most prominent when the hip is in neural alignment or in extension. The findings suggest that ligamentum teres deficiency may be a relevant treatment target in the clinical setting, including reconstruction, to achieve optimal hip joint stability.

[xxiv] Abstract. The ligamentum teres (LT) is known to play a role as a secondary stabilizer of the hip joint. LT tears can be associated with hip instability. In patients with borderline developmental dysplasia of the hip (BDDH), the correlation between LT tears and microinstability is even more pronounced because of the increased mechanical stress placed on the ligament. This relationship may lead certain surgeons to consider new indications for LT reconstructions. However, caution is warranted regarding the potential role of LT reconstruction in these patients, particularly since the primary deficiency in BDDH is bony undercoverage.

[xxv] Conclusions. LT tears and increased combined anteversion at the 3-o’clock level on the acetabular clockface were associated with hip microinstability in patients with BDDH, suggesting that patients with BDDH and LT tears might have a greater prevalence of anterior microinstability.

[xxvi] The hip is a uniquely constrained joint with critical static stability provided by the labrum, capsule and capsular ligaments, and ligamentum teres. … The ligamentum teres is situated between the acetabular notch and the fovea of the femoral head. Initially considered to be inconsequential, recent studies have recognized its role in hip rotational stability. Existing classification systems of ligamentum teres tears account for injury mechanism, arthroscopic findings, and treatment options. Injuries to the labrum, capsule, and ligamentum teres are implicated in symptoms of hip instability. The authors discuss the labrum, capsule, and ligamentum teres, highlighting their anatomy, pathologic conditions, MRI features, and postoperative appearance.

[xxvii] … ligament of the head of the femur, by virtue of its attachments, strongly prevents the hip joint from becoming dislocated posterosuperiorly. However, if the ligament is abnormally long, it will not prevent a posterosuperior dislocation ...

[xxviii] No blood flow was observed in the necrotic femoral head. Following hip dislocation with the release of the ligamentous teres, the epiphysis was trimmed. After the epiphysis was curetted to remove the physeal cartilage, the epiphysis was reduced. The epiphysis was fixed with a 6.5 mm cannulated screw. The capsule was closed.

[xxix] There is hope for patients facing revision arthroscopy as some advanced techniques have the potential to improve patient symptoms and prognosis. Some of these procedures include labral reconstruction/augmentation, capsule reconstruction, ligamentum teres reconstruction, and remplissage of the femoral head-neck junction [49, 50]. 49. Locks R, Bolia I, Utsunomiya H, Briggs K, Philippon MJ. Current concepts in revision hip arthroscopy. HIP International. 2018;28(4):343–351. doi: 10.1177/1120700018771927. PubMed CrossRef Google Scholar  50. Perez-Carro L, Escajadillo NF, Escajadillo LF, Arriaza CR, García MS, Fernandez AA. Simultaneous acetabular labrum reconstruction and remplissage of the femoral head–neck junction. Arthroscopy Techniq. 2019;8(12):e1443–e1443. doi: 10.1016/J.EATS.2019.07.023. PMC free article  PubMed CrossRef  Google Scholar

[xxx] Physiotherapist-led management involves exercises aimed to optimise movement patterns of the hip and pelvis to prevent impingement from occurring, activity modification and analgesia, whereas surgical management involves arthroscopic resection of the cam/pincer morphology and treatment of concomitant soft tissue pathologies such as labral tears, cartilage lesions or ligamentum teres tears.

[xxxi] The hip joint capsule was incised in a “T" shape and dissected to the sides, exposing the femoral head (Fig. 1b). The round ligament of the femoral head was then severed, and the hip joint was fully dislocated.  

[xxxii] Labral and ligamentum teres reconstruction and periacetabular osteotomy. 

[xxxiii] Hip arthroscopy surgery can clearly show the acetabular glenoid lip, femur and acetabular cartilage surface, fovea, round ligament, synovium and other structures. Therefore, it can be used to diagnose and treat various hip joint diseases.



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  T he ligament of the head of femur or ligamentum capitis femoris (LCF) is the key to a graceful gait and understanding the causes of hip joint diseases. We present promising scientific knowledge necessary for preserving health,  to create new implants and techniques  of treating degenerative  pathology and damage of the hip joint. Project objective : preserving a normal gait and quality of life, helping to study of hip joint biomechanics, developing effective treatments for its diseases and injuries. In translating to English, the author is assisted by ChatGPT (version 3.5)  and the Google Translate service .  We're sorry for any flaws in the syntax. The meaning makes up for the imperfections!     TABLES OF CONTENTS    Acetabular Canal   (Anatomy, topography and significance of the functioning area of ​​the ligamentum capitis femoris) Acetabular Canal.  Part 1.   This article describes the space where the ligam...
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2008ArkhipovSV

  On the Role of the Ligamentum Capitis Femoris  in the Maintenance of Different Types of Erect Posture S.V. Arkhipov Keywords: ligamentum capitis femoris, ligamentum teres, ligament of head of femur, abductor muscle group, role,  function, hip joint, model, biomechanics, walk, gait cycle, single-legged stance  ABSTRACT New experimental and clinical data on the function of the ligamentum capitis femoris (LCF) and its participation in maintaining an erect posture were obtained. It was established that this anatomical element is involved in constraining the hip joint adduction and may fi x the joint in the frontal plane, turning it into an analogue of a second-class lever. In both unstrained one-support and asymmetrical two-support orthostatic postures, when the LCF is stretched and the abductor muscle group is exerted, a load equal to the body weight is evenly distributed between the upper and lower hemispheres of the caput femoris. In addition, the LCF fu...
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Human Children. Retelling of Chapter 6

  Short retelling of chapter 6 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 6. THE GARDEN OF EDEN According to the Book of Genesis, humanity’s earliest ancestors emerged "in the garden of Eden." The text specifies that this idyllic garden was located "in Eden, toward the east." A nameless river flowed from Eden, irrigating the garden, suggesting that "Eden" encompasses a broader region, while the "garden in Eden" is a distinct, cultivated space. Genesis portrays the garden as a divine plantation, established by "Lord God," with humans tasked to tend and maintain it. The garden teemed with diverse trees, including fruit-bearing ones, and later hosted birds, wild animals, and domesticated livestock. Alongside humans, it harbored supernatural beings like cherubim (kyruvy), a serpent, and other divine entities. A s...
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2025ArkhipovSV. Why Acetabular Labrum Repair May Be Ineffective

  Original in Russian is available at the link:   С.В. Архипова «Почему восстановление вертлужной губы может быть неэффективно?» (06.04.2025) , below is a machine translation edited by a non-native speaker (version dated 06/04/2025). Thematic Internet Journal About round ligament of femur April 2025 WHY ACETABULAR LABRUM REPAIR MAY BE INEFFECTIVE?: A NOTE ON THE MYSTERIOUS "DARK MATTER" OF THE HIP JOINT S.V. Arkhipov, Independent Researcher, Joensuu, Finland Abstract Acetabular labrum repair and reconstruction do not prevent hip joint instability during gait and the development of osteoarthritis in the case of an elongated ligamentum capitis femoris. This conclusion is based on mathematical calculations and analysis of experiments conducted on a mechanical hip joint model. Keywords : arthroscopy, hip joint, acetabular labrum, ligamentum capitis femoris, ligamentum teres, ligament of head of femur , reconstruction, repair Introduction Nearly 80% of primary hip ar...
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20c.WikstromB

  Wikstrom B , s culpture I will not let you go» (Jacob wrestling the Angel , 20th 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 ). Brit Wikstrom – « I will not let you go» (Jacob wrestling the Angel , 20th?) . O riginal in gg...
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