Skip to main content

LCF in 2025 (April)

 

LCF in 2025 (April): Quotes from articles and books published in April 2025 mentioning the ligamentum capitis femoris.


Kacková, G., Horňák, S., Figurová, M., Vargová, N., & Tauberová, V. (2025). MORPHOMETRIC EVALUATION OF THE HIP JOINT IN DOGS. FOLIA VETERINARIA, 69(1), 1-8. [i]  uvlf.sk

 

Ağlamış, Ö., Akkaya, S. K., Erol, B., & Yılmaz Ergani, S. (2025). Investigating the Impact of Acetabular Dysplasia on Sexual Dysfunction and Psychological Well-Being in Women. Journal of Clinical Medicine, 14(7), 2385.  [ii]  mdpi.com

  

Lawler, D., Tangredi, B., Widga, C., Etnier, M., Martin, T., Schulz, K., & Kohn, L. (2025). Reading the carnivoran skeletal story: An acetabular viewpoint, with suggested implications across geological time. Acta Zoologica. 26 March 2025 https://doi.org/10.1111/azo.12542  [iii]   onlinelibrary.wiley.com

 

Hadley, M., Thacker, M. M., & Su, A. W. (2025). Master’s Surgical Technique–One-stage Combined Hip Arthroscopy and Peri-Acetabular Osteotomy. Journal of the Pediatric Orthopaedic Society of North America, 100171.  [iv]  sciencedirect.com

 

Monari, R., Pessiquelli, F. L. F., & Machado, E. G. (2025). Painful Borderline Acetabular Dysplasia: What's New?. Revista Brasileira de Ortopedia, 60(1), 1.  [v]  pmc.ncbi.nlm.nih.gov

 

Heimann, A. F., Wagner, M., Vavron, P., Brunner, A., Lerch, T. D., Schmaranzer, E., ... & Schmaranzer, F. (2025). Ischiofemoral impingement in joint preserving hip surgery: prevalence and imaging predictors. Insights into Imaging, 16(1), 78.  [vi] insightsimaging.springeropen.com

 

Li, X., Ji, J., Li, P., Yang, D., Yedron, N., Lei, Y., ... & Qu, D. (2025). Plasma Lipidomics Profiling of Developmental Dysplasia of the Hip in Tibet Plateau. Health Care Science.  [vii]   onlinelibrary.wiley.com

 

Arkhipov, S. V. (2025). WHY ACETABULAR LABRUM REPAIR MAY BE INEFFECTIVE?: A NOTE ON THE MYSTERIOUS" DARK MATTER" OF THE HIP JOINT.   [viii]  researchgate.net

 

Davies, M. (2025). Hip dysplasia: time to move from correction to prevention. Hip. [ix]  vettimes.com

 

Wang, Z., Kenmegne, G. R., Zeng, J., & Chen, M. (2025). Clinical analysis of Ganz approach in the treatment of Pipkin type IV fracture: a retrospective review. BMC Musculoskeletal Disorders, 26(1), 1-8.   [x]  bmcmusculoskeletdisord.biomedcentral.com

 

Angeli, L. R. A. D., SANTOS, G. B. D., Ferreira, J. R. M., Serafim, B. L. C., Lima, T. Z., Lima, L. G. C. A. D., ... & Guarniero, R. (2025). Local injection of human dental pulp stem cells for treatment of juvenile avascular necrosis of the femoral head: preliminary results in immature pigs. Acta Ortopédica Brasileira, 33(spe1), e283445.  [xi]   pmc.ncbi.nlm.nih.gov

 

Johnson, L. G. (2025). Advanced magnetic resonance imaging and modelling of Legg–Calvé–Perthes disease (Doctoral dissertation, University of British Columbia).   [xii]  scholar.google.com

  

Yılmaz, O., Erken, H. Y., Gülen, M. İ., Bağla, A. G., Adalı, Y., & Kuru, T. (2025). The effects of systemic ozone application and hyperbaric oxygen therapy on avascular necrosis of the femoral head: An experimental study in the vascular deprivation of the rat femoral head model. Joint diseases and related surgery, 36(2), 293-303.  [xiii]  pubmed.ncbi.nlm.nih.gov

 

Marka, A. W., Meurer, F., Twardy, V., Graf, M., Weiss, K., Makowski, M. R., ... & Foreman, S. C. (2025). Deep learning and conventional hip MRI for the detection of labral and cartilage abnormalities using arthroscopy as standard of reference. European Radiology, 1-14.  [xiv]  link.springer.com

 

Zhang, Y., Wang, J., Gu, L., Martin, H. D., & Martin, R. L. (2025). A finite element analysis model to support ligamentum teres function. Journal of Hip Preservation Surgery, hnaf017. [xv]  academic.oup.com

 

Bukowiec, L. G., Kaji, E. S., Koch, J. A., Saniei, S., Girod-Hoffmann, M. M., Sinnwell, J. P., & Wyles, C. C. (2025). Genetics of morphological hip abnormalities and their implications for osteoarthritis: a scoping review. Journal of Hip Preservation Surgery, hnaf020.  [xvi]  academic.oup.com

 

Quesada-Jimenez, R. Ligamentum Teres Reconstruction with Tibialis Anterior Allograft: Case Series with 2-Year Follow Up. (2025). American Hip Institute.   [xvii]   isakos.com

 

Hegazy, A. A., Hegazy, M. A., & Hegazy, A. A. (2025). Vascular Anatomy of the Proximal Femur and the Risk of Avascular Osteonecrosis. Int J Cadaver Stud Ant Var Vol, 6(1), 10.  [xviii]  researchgate.net


                                                                    

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



[i] The iliac bones fuse with the sacrum and femur and eventually fuse at the pubic symphysis [18]. It is further divided into the ventromedial fossa of the acetabulum, where the ligament of teres, also called the round ligament for ligament of the femoral head, exits.

  

[ii] Orthopedic conditions such as femoroacetabular impingement (FAI), hip osteoarthritis, labral tears, and ligamentum teres injuries were excluded from this study.

 

[iii] … ‘non-ligamentous fossa bone’ (not involving the site of ligamentum teres attachment)

 

[iv] A diagnostic hip scope is performed in the central compartment, focusing on assessing labral integrity, cartilage injury, the presence of loose bodies, and the ligamentum teres.

 

[v] Nawabi et al. 36 presented the 2-year clinical outcomes from 55 cases of borderline DDH treated with arthroscopy and compared with a control group (subjects with hips undergoing arthroscopy, but with LCEA > 25° and < 40°). The authors demonstrated that both groups showed significant improvement in the postoperative quality of life questionnaires, with no difference between the improvement of one group over the other, and similar hip movement outcomes. Furthermore, the authors investigated the procedures performed in each group, and the most frequent in patients with borderline DDH was round ligament debridement.

36.Nawabi D H, Degen R M, Fields K G et al. Outcomes After Arthroscopic Treatment of Femoroacetabular Impingement for Patients With Borderline Hip Dysplasia. Am J Sports Med. 2016;44(04):1017–1023. doi: 10.1177/0363546515624682. [DOI] [PubMed] [Google Scholar]

 

Maldonado et al. 43 performed a paired study with patients with borderline dysplasia undergoing arthroscopy, revealing that those with an intact/healthy round ligament tended to present better outcomes than patients with round ligament [ligamento redondo.] injuries.

43.Maldonado D R, Chen S L, Walker-Santiago R et al. An Intact Ligamentum Teres Predicts a Superior Prognosis in Patients With Borderline Dysplasia: A Matched-Pair Controlled Study With Minimum 5-Year Outcomes After Hip Arthroscopic Surgery. Am J Sports Med. 2020;48(03):673–681. doi: 10.1177/0363546519898716. [DOI] [PubMed] [Google Scholar]

  

[vi] The presence and extent of intraarticular degeneration were assessed and compared between groups, including presence/absence of labral tears, type of labral tear (base tear, intrasubstance/complex tear), presence/absence of cartilage damage, and presence/absence of a ligamentum teres lesion [10, 11]. 

 

To determine the interobserver reliability, a fellowship-trained musculoskeletal radiologist with seven years of experience in hip imaging (F.S.) evaluated the presence/absence of chondrolabral damage and ligamentum teres lesions on MRA in 100 randomly chosen patients (100 hips).

  

[vii] DDH is characterized by pathological changes in both the skeletal and soft tissues. These changes include alterations in the osseous structures, such as the acetabulum, femoral head, femoral neck, and femoral shaft, as well as modifications in the soft tissues like the labrum, ligamentum teres, and joint capsule. Additionally, there may be associated dysfunctions in the muscles surrounding the hip joint.

  

[viii] A cause of poor outcomes after labral surgery may lie in changes to the ligamentum capitis femoris (LCF).

  

[ix]  In the first two weeks of life the round ligament seems primarily responsible for maintaining hip joint stability as, if forced to luxate, the femoral head fractures at the fovea (attachment of the ligament).

 

[x] The literature supports that the round ligament is not the primary source of blood supply to the femoral head [19, 22], therefore, the removal of the remaining round ligament does not significantly impact the blood supply to the femoral head.

 

During the procedure, protecting the deep branches of the medial circumflex femoral artery is essential. While the round ligament may be sectioned if needed, excessive tightening of sutures within the joint capsule should be avoided to prevent compromising femoral head blood perfusion.

19 Sevitt S, Thompson RG, THE DISTRIBUTION AND ANASTOMOSES OF ARTERIES SUPPLYING THE HEAD AND NECK OF THE FEMUR. J Bone Joint Surg Br Volume. 1965;47:560–73. Article CAS Google Scholar

22 Mei J, Quan K, Wang H, Dai Y, Zhang F, Ni M. Total cross-sectional area of the femoral neck nutrient foramina measured to assess arterial vascular beds in the femoral head. J Orthop Surg Res. 2019;14(1):439. Article PubMed PubMed Central Google Scholar 

 

[xi] The surgical procedure to induce necrosis consisted of performing two intracapsular ligatures around the neck of the right femur of the animals with absorbable Vicryl 2-0 sutures (Ethicon INc., Somerville, NJ) and the section of the ligamentum teres (Figure 1). The procedure aims to interrupt blood flow to the proximal femoral epiphysis. . After necrosis was inducted, hip reduction and wound closure in a standard fashion were performed in layers in the control group.

 


Figure 1. Photograph of the surgical procedure showing the intracapsular ligatures in the femoral neck with absorbable sutures after the ligamentum teres was sectioned. (License СС)

  

[xii]  A ligament called the ligamentum teres connects the femur to the acetabulum between the capital fossa and the acetabular fossa.

  

[xiii] We surgically induced osteonecrosis by cutting the ligamentum teres and placing a tight ligature around the femoral neck.

  

[xiv] Femoral Zone F corresponds to the attachment site of the ligamentum teres [26].

26  Surowiec RK, Lucas EP, Wilson KJ, Saroki AJ, Ho CP (2014) Clinically relevant subregions of articular cartilage of the hip for analysis and reporting quantitative magnetic resonance imaging: a technical note. Cartilage 5:11–15  Article PubMed PubMed Central Google Scholar 

 

[xv] Abstract

The function of the ligamentum teres (LT) remains debated, particularly its role in limiting motion. The aim of this study was to use finite element analysis to assess LT stress during hip movements, which included external rotation with flexion. A 3D model of the hip joint, including the femoral head and LT, was constructed from magnetic resonance imaging data using 3D Slicer. The models were imported into Ansys SpaceClaim 2022R1 for refinement and assembly. The von Mises stress in the LT was extracted during six hip movements: external rotation, internal rotation, abduction, adduction, flexion, and extension. LT stress response was also extracted during external rotation at hip flexion angles of 0°, 30°, 60°, and 90°. The results found there was a sharper increase in LT stress during movements involving hip external rotation, internal rotation, abduction, and adduction when compared to movements in flexion and extension. External rotation in larger hip flexion angles resulted in greater LT stress, with the highest stress observed at 90° flexion. These findings help to support the LT’s role as a rotational stabilizer in the frontal and transverse planes wrapping around the femoral head to act as a sling. Additionally, the increased stress during external rotation at greater degrees of hip flexion suggests an enhanced role for the LT in hip stability as flexion increases. These results add as a proof of concept in that the LT is under stress during hip movements and has a potential role in stabilizing the hip joint.

 

[xvi] In another study that used snRNA and MiP sequencing to analyse ligamentum teres samples in six patients undergoing open reduction for DDH, COL1A1 was shown to have a role in tissue thickening and hypertrophy [66].

66  Zhao   Z, Fan   C, Wang   S  et al.  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  2024;10:e27803. doi: 10.1016/j.heliyon.2024.e27803

 

[xvii] Purpose and Hypothesis

• The literature on outcomes of LT reconstruction is limited. Most studies report favorable outcomes, with contradictory findings of reoperation rates.

• This study aims to evaluate the outcomes of LT reconstruction with tibialis anterior allograft treatment for LT tears, with a minimum 2-year follow-up.

• Hypothesis: Favorable outcomes with high satisfaction and low revision rates at 2 years after LT reconstruction

Methods

• Looking at patients from a single surgery center between December 2014 and July 2021

• Included patients had completed preoperative and minimum of 2-year postoperative questionnaires for the following PROs: mHHS, NAHS, HOS-SSS, iHOT-12, VAS pain, or had a documented endpoint surgery

• Looking at patient demographics, radiographic findings, intraoperative findings, procedures, patient reported outcomes (PROs), secondary surgeries, and complications

• A sub-analysis was also performed comparing outcomes between a comparable group of patients with grade III LT Percentile Domb classifications who underwent hip arthroscopy with LT debridement as treatment.

Conclusion

Arthroscopic LT reconstruction with a tibialis anterior allograft, concomitant with labral repairs and osteoplasties for FAI, have shown favorable outcomes, high patient satisfaction rates, and a high percentage of patients reaching clinically important thresholds, with a low rate of complications and THA conversion at a minimum 2-year follow-up. 

 

[xviii] In addition to retinacular branches, the head of femur receives another two sources of blood supply. The first is a branch from obturator artery (OA) travelling along the ligament of the FH; however, it is not capable of keeping the head alive if other sources are lost [1].

 

Interestingly, the artery of ligamentum teres, which is of great importance in children in supplying the FH, can be damaged by hip dislocation [1,2]. 

1. Barney J, Piuzzi NS, Akhondi H. Femoral head avascular necrosis. StatPearls Publishing, Treasure Island, Florida, United States. 2023.

2. Lo D, Talkad A, Sharma S. Anatomy, bony pelvis and lower limb, fovea capitis femoris. StatPearls Publishing, Treasure Island, Florida, United States. 2023.

 

                                                                    

Author:

Arkhipov S.V. – candidate of medical sciences, surgeon, traumatologist-orthopedist. 

Keywords

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, history

 

BLOG CONTENT

NEWS AND ANNOUNCEMENTS

 

Comments

Popular posts from this blog

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...

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...

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., ...

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...

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)»...

1626BartholinC

  Fragment from the book Bartholin C. Anatomicae Institutiones Corporis Humani (1626). The author describes the anatomy, topography, geometric and mechanical properties of the ligamentum capitis femoris (LCF). The term «terete» (rounded) is used to indicate its geometry. The term «cartilagine» (cartilaginous) is used to describe the hardness of the LCF, and the analogy of «nervus esset cartilaginosus» (like a cartilaginous sinew) is given. Similar terminological elements are present in the works of Galen of Pergamon and Theophilus Protospatharius ( 2020ArkhipovSV_ProlyginaIV ). See the previous edition at the link:  1611BartholinC   Quote p. 409 [Lat] Cap. XXI. DE OSSIBUS TOTIUS PEDIS. … I. Est caput maximum & rotundum, ex appendice factum, quod in coxendicis acetabulum inseritur, & duplici ligamento cum coxendice nectitur: uno communi, lato, membraneo, sed satis crasso, orbiculatum articulum ambiente; altero terete, quasi cartilagine (ac si nervus esset cart...

1905BardeenCR

  An excerpt from the article by Bardeen CR. Studies of the development of the human skeleton (1905). The author briefly discusses the emergence of the ligamentum capitis femoris (LCF). Quote p. 287 The hip-joint is represented at first by a dense mass of scleroblastema, Fig. 55. The development of the acetabulum by ingrowth and fusion of processes from the iliac, ischial and pubic cartilages has already been described. The cartilagenous joint-cavity is at first quite shallow, Fig. 56. But extension of cartilage into the blastemal tissue which passes from the pelvis over the head of the femur serves greatly to deepen it on all sides except in the region of the cotyloid notch. The joint-cavity is at first completely filled with a dense blastemat tissue, Fig. 56. While the embryo is growing from 20 to 30 mm. in length cavity formation begins in the tissue lying between the cartilagenous floor of the acetabulum and the head of the femur. The first stage in the process is marked by a c...

1720RuyschF

  The author draws attention to the well-developed blood supply of the acetabular fossa, as well as the ligamentum capitis femoris (LCF). In the work, it is referred to as the «ligamentum nerveo-cartilagineum», which literally means the tough cartilaginous ligament and implies its strength. With the difficulty of accessing the acetabular fossa, and therefore the LCF, Frederik Ruysch associates the inefficiency of treating hip joint pain. The writer presumably implies osteoarthritis. In our opinion, its development is initiated by the pathology of the LCF ( 2012АрхиповСВ ). The discussed work includes a black and white drawing of the LCF of a child, made by the illustrator Jan Wandelaar. In color, the same preparation, but from a different angle, was depicted by the artist Jan l'Admiral in a separate publication ( 1738LadmiralJ ). Ruysch F. Adversarium anatomico-medico-chirurgicorum decas secunda. In quâ varia notatu digna recensentur. Cum figuris aeneis. Amsterdami: a...

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...

Human Children. Retelling of Chapter 1

      Short retelling of chapter 1 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 1. THE BEGINNING OF THE WORLD The Bible stands as a remarkable testament to religious and philosophical thought, passed down through the ages with minimal alterations. At its core lies a collection of texts rooted in the sacred writings of Jewish and Samaritan traditions, known as the Torah, meaning "Law" or "Teaching." In its narrowest sense, the Torah comprises the first five books of the Hebrew Bible, collectively called the Tanakh—an acronym derived from the Hebrew terms for "Law/Teaching" (Torah), "Prophets" (Nevi’im), and "Writings" (Ketuvim). Beyond this Written Torah, there exists an Oral Torah, which includes the Mishnah, Talmud, and Midrash, offering interpretations and expansions of the written texts. The Written Torah it...