ABOUT ROUND LIGAMENT OF FEMUR (ligament of head of femur)

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Topography of the Acetabular Canal

Version: 20250728

Topography of the Acetabular Canal

Side

Femoral (lateral)

Pelvic (medial)

Contents

Synovial fluid

Ligamentum capitis femoris (LCF)

White adipose tissue

Loose connective tissue

Synovial membrane

Transverse acetabular ligament

Arteries

Veins

Nerves

Lymphatic vessels

Sections

Peripheral section

Central section

Subsynovial section

Suprasynovial section

Peripheral Section

Entrance foramen

-- Upper edge

-- Lower edge

-- Anterior edge

-- Posterior edge

External segment (subligamentous)

- Superior wall

- Inferior wall

- Posterior wall

- Anterior wall

Internal segment (extraligamentous)

- Subsynovial part (tier)

-- Superior wall

-- Inferior wall

-- Posterior wall

-- Anterior wall

- Suprasinovial part (tier)

-- Superior wall

-- Inferior wall

-- Posterior wall

-- Anterior wall

Central Section

Iliac recess

Ischial recess

Subsynovial part (tier)

- Outer margin

- Medial wall

- Lateral wall

- Anteroinferior wall

- Posteroinferior wall

- Suprasinovial part (tier)

Outer margin

- Anteroinferior wall

- Posteroinferior wall

- Medial wall

- Lateral wall

-- Fossa of the femoral head

-- Cartilage of the femoral head

Note

Translation of the Russian version of the article: Топография вертлужного канала. Классификация

Keywords:

ligamentum capitis femoris, ligament of head of femur, round ligament, ligamentum teres, classification, morphology, acetabular canal

BLOG CONTENT

ACETABULAR CANAL

Set of Classifications

REVIEWS AND CLASSIFICATIONS

REVIEWS AND CLASSIFICATIONS (Various groupings of concepts and overview publications... ) 1893MoserE We present to your attention a review article summarizing the information about LCF available at the end of the 19th century. Set of Classification The use of the provided classifiers will enable a more comprehensive description of LCF pathology and facilitate the identification of rational methods for treatment and restoration of its function. Classification of Functions of LCF The proposed classification of LCF functions is based on an analysis of literary sources, experimental and clinical studies of the author. 2016ArkhipovaAS Classification of joints with flexible elements. 2024MiglioriniF_MaffulliN The ligamentum teres and its role in hip arthroscopy for femoroacetabular impingement: a systematic review ( a bstract and overview of LCF tear classification) . NB! For a complete list of publications, see the sectio...

Tweet of Apr 20, 2024

Apr 20 , 2024 The new version of the General classification of pathology of the ligamentum capitis femoris (LCF) is presented; available on the website: https://roundligament.blogspot.com/2024/02/catalog-general-classification-of-lcf.html #ligamentum_teres #ligamentum_capitis_femoris #hip BLOG CONTENT TWITTER OR X

Types of LCF Reconstruction

Version : 20240419 Types of LCF Reconstruction 1. Open a. - during endoprosthesis b. - during osteoplastic surgeries c. - during osteosynthesis 2. Semi-open a. - during osteoplastic surgeries b. - during osteosynthesis 3. Closed (Arthroscopic) Subtypes of LCF Reconstruction 1. Reinsertion 2. Suture 3. Endoprosthesis 4. Autoplasty a. ligament transposition b. tendoplasty 5. Alloplasty a. ligament transplantation b. tendon transplantation 6. Xenoplasty a. ligament transplantation b. tendon transplantation 7. Reinforcement (suturing) Keywords: ligamentum capitis femoris, ligament of head of femur , round ligament, ligamentum teres, classification, reconstruction In translating ...

Load on LCF

Version : 20240419 Magnitude of LCF Load 1. Optimally loaded 2. Partially loaded 3. Unloaded 4. Excessively loaded (overloaded) Reasons for Increased Load on LCF 1. Increase in effective body weight 2. Decrease in the lever arm of the abductor muscle group 3. Decrease in the strength of the abductor muscle group 4. Increase in the lever arm of body weight 5. The presence of a dynamic component (walking, running, jumping) Reasons for Decreased Load on LCF 1. Decrease in body weight 2. Increase in the lever arm of the abductor muscle group 3. Increase in the strength of the abductor muscle group 4. Decrease in the lever arm of body weight 5. Absence of dynamic component (walking, running, jumping) Keywords: ligamentum capitis femoris, ligament of head of femur , round ligament, ligamentum teres, classification, functions, dysfunction, l oad ...

Performance of LCF Functions

Version : 20240419 Degrees of LCF Function Performance 1. Normally functioning 2. Dysfunctional (function partially impaired) 3. Afunctional (function not performed) In the case of afunctional LCF, one or more functions are not performed. With dysfunctional LCF, one or more functions are impaired. For example, in the case of partial subsynovial damage, mechanical and trophic dysfunction will be observed. TYPES OF LCF DYSFUNCTIONS 1. Mechanical dysfunction 2. Trophic dysfunction 3. Sensory dysfunction 4. Synthetic dysfunction 5. Conductor dysfunction Keywords: ligamentum capitis femoris, ligament of head of femur , round ligament, ligamentum teres, classification, functions, dysfunction In tra...

Main Functions of LCF

Version : 20240419 MAIN FUNCTIONS OF LCF 1. Mechanical 2. Trophic 3. Sensory 4. Synthetic 5. Conductor The mechanical function of LCF involves the ability to perform work, change the direction and magnitude of movements, and convert potential energy into kinetic energy, which manifests in effects. The mechanical function is realized by the stroma of LCF. The trophic function of LCF involves providing nutrition and gas exchange in the medial part of the femoral head through the vascular system. The sensory function of LCF involves synthesizing and transmitting information to the central nervous system about the magnitude of mechanical stresses in the stroma and attachment areas, as well as about the parameters of the intra-articular environment of the joint. The sensory function is provided by nerves and receptors of LCF, in conjunction with analyzers of the spinal cord and brain. The synthetic function of LCF involves the production of synovial fluid, which redu...

Pathology of the Acetabular Canal

Version : 20240419 Pathology of the Acetabular Canal 1. Diameter reduction 2. Decreasing depth 3. Deformation 4. Uneven walls 5. Dislocation of the acetabular canal 6. Local narrowing 7. Fracture of the wall without displacement 8. Fracture of the wall with medial displacement 9. Fracture of the wall with lateral displacement 10. Mobile foreign bodies 11. Fixed foreign bodies 12. Metal construction 13. Sequestrum 14. Mobile bone fragment 15. Mobile osteochondral body 16. Mobile cartilaginous body 17. Mobile foreign body 18. Osteophytes of the femoral head 19. Osteophytes of the acetabulum fossa 20. Salt crystals 21. Chondromatosis 22. Obliteration by bone tissue 23. Obliteration by scar tissue 24. Malignant neoplasms 25. Benign neoplasms 26. Disappearance of the acetabular canal 27. Lateral wall defect 28. Defect of the medial wall Keywords: ligamentum capitis femoris, ligament of head of femur , round ligament, l...

Pathology of LCF Attachment Areas

Version : 20240419 PATHOLOGY OF LCF ATTACHMENT AREAS 1. Distal attachment area 2. Proximal attachment area 3. Both attachment areas Types of Pathology of LCF Attachment Area 1. Spontaneous 2. Iatrogenic Variants of Pathology of LCF Attachment Area 1. Displacement of the attachment area (dislocation) 2. Partial damage to the attachment area 3. Destruction of the attachment area Pathology of the Distal Attachment Area of LCF 1. Caudal displacement (coxa vara, juvenile epiphysiolysis) 2. Cranial displacement (coxa valga, adductor contracture) 3. Forward displacement (anteversion) 4. Backward displacement (retroversion) 5. Flexion displacement (flexion contracture) 6. Extension displacement (extension contracture) 7. Medial displacement (protrusion, fracture of the acetabulum) 8. Lateral displacement (external subluxation) Pathology of the Proximal Attachment Area of LCF 1. Caudal displacement (vertical ace...

LCF Changes

Version : 20240419 CHARACTERISTICS OF LCF CHANGES 1. Reversible 2. Irreversible CHANGES IN THE MECHANICAL PROPERTIES OF LCF 1. Increase in elasticity modulus 2. Decrease in elasticity modulus 3. Increase in strength 4. Decrease in strength 5. Increase in hardness 6. Decrease in hardness 7. Increase in flexibility 8. Decrease in flexibility 9. Increase in plasticity 10. Decrease in plasticity CHANGING THE SPATIAL POSITION OF LCF 1. Normal position 2. Forward torsion 3. Backward torsion 4. Forward deviation 5. Backward deviation 6. Downward displacement 7. Upward displacement 8. Inward displacement 9. Outward displacement CHANGING OF GEOMETRICAL PROPERTIES OF LCF 1. Hypertrophy (total thickening) 2. Hypotrophy (total thinning) 3. Local thickening 4. Local thinning 5. Irreversible elongation 6. Irreversible shortening 7. Reversible elongation 8. Reversible shortening 9. Shortening of the dis...

Pathological Changes of LCF

Version : 20240419 RESULT OF PATHOLOGICAL CHANGE OF LCF 1. Absence of detectable changes 2. Elongation 3. Shortening 4. Thinning (hypotrophy) 5. Thickening (hypertrophy) 6. Disappearance 7. Impingement (within the joint space) 8. Compression (in the fossa of the acetabulum) 9. Marginal defect 10. Distally detached fragment 11. Proximally detached fragment 12. Two-fragments injury (in the midsection) 13. Avulsion-fracture of the distal end 14. Avulsion-fracture of the proximal end 15. Subsynovial avulsion of the distal end 16. Subsynovial avulsion of the proximal end 17. Synovial sheath 18. Partial distal end detachment 19. Partial proximal end detachment 20. Partial subsynovial injury 21. Complete subsynovial injury 22. Combination of pathological changes PATHOMORPHOLOGICAL CHANGES OF LCF 1. Edema 2. Dystrophic change in the stroma 3. Total dystrophic change 4. Metaplasia 5. Sclerosis 6. Hyalinosis 7. Fibrosis ...

LCF Infection

Version : 20240419 Types of LCF Infection I. 1. Viral infection 2. Bacterial infection 3. Prion infection 4. Fungal infection 5. Protozoal infection II. 1. Acute infection 2. Chronic infection III. 1. Nonspecific infection 2. Specific infection IV. 1. Aerobic infection 2. Anaerobic infection VARIETIES OF LOCAL INFECTIOUS INVOLVEMENT OF LCF 1. Empyema 2. Cellulitis 3. Gangrene 4. Abscess 4. Partial melting Keywords: ligamentum capitis femoris, ligament of head of femur , round ligament, ligamentum teres, classification, pathology, infection In translating to English, the author is assisted by ChatGPT (version 3.5) and the Google Translate service. BLOG CONTENT Set of Classifica...

Pathology of the Nervous and Vascular System LCF

Version : 20240419 Pathology of the Vascular System OF LCF 1. Arterial thrombosis 2. Phlebothrombosis 3. Embolism 4. Damage to the walls 5. Occlusion 6. Varicose veins 7. Valve dysfunction 8. Atherosclerosis 9. Obliteration 10. Phlebitis 11. Arterial hyperemia 12. Venous hyperemia 13. Devascularization 14. Disappearance of large vessels 15. Decrease in capillary density Pathology of the Nervous System OF LCF 1. Reducing the number of receptors 2. Disappearance of receptors 3. Selective denervation 4. Total denervation 5. Damage to the corresponding spinal cord nuclei Keywords: ligamentum capitis femoris, ligament of head of femur , round ligament, ligamentum teres, classification, pathology, vessels, nerves ...