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Lower limb from the Thigh to Obturator Canal

Lower limb from the Thigh to Obturator Canal

This presentation shows Lower limb from the Thigh to Obturator Canal

Dr.Sherif Fahmy

August 03, 2019
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  1. Fasciae of the Thigh A-Superficial Fascia (2 layers): 1. Superficial

    fatty. 2. Deep membranous. B-Deep fascia It is named fascia lata = broad.
  2. Contents of Superficial Fascia 1- Superficial inguinal lymph nodes. 2-

    Cutaneous nerves. 3- Superficial inguinal vessels.
  3. Strong non-elastic stocking around thigh. Attachments of Fascia Lata 1-

    Upper: to root of thigh: ➢inguinal ligament (anterior) ➢Pubic arch (medially) ➢Iliac crest (lateral & posterior) ➢Sacrum & sacrotuberous ligament (posterior) 2- Lower: to knee region ➢Two tibial condyles, two femoral condyles and patella.
  4. Features of Fascia Lata It has: 1. Lateral thickening (Ilio-tibial

    tract). 2. Saphenous opening. 3. Inter-muscular septa.
  5. Ilio-tibial tract Tensor fasciae latae muscle Patella Anterolateral aspect of

    upper end of tibia (lateral tibial condyle) Tubercle of iliac crest Fibula Lateral Medial
  6. Functions of Ilio-tibial Tract ➢It extends the action of gluteus

    maximus and tensor fasciae latae muscles to knee joint to: 1. Extends the knee. 2. Abduct the thigh at hip j. ➢Stabilizes knee & hip joints.
  7. Falciform margin of saphenous opening Saphenous opening Great saphenous vein

    Superficial inguinal arteries Superficial inguinal lymph nodes
  8. Lateral intermuscular septum Medial intermuscular septum Posterior intermuscular septum Anterior

    compartment Posterior compartment Medial compartment T.S. of the Thigh Dr. Sherif Fahmy Linea aspera Fascia lata Lateral Medial
  9. Muscles of Front of the Thigh (Anterior Compartment) (Page 56)

    A- Two muscles from the abdomen: 1- Psoas major. 2- Iliacus. B- Two muscles in the thigh: 1- Sartorius. 2- Quadriceps femoris.
  10. T12

  11. Psoas major m. T12 Lumbar vertebrae Ilio-psoas tendon to lesser

    trochanter & 1 inch below Inguinal lig.
  12. Psoas major m. Ilio-psoas tendon to lesser trochanter & 1

    inch below Inguinal lig. Iliacus m.
  13. Origin of sartorius (ASIS) Insertion of Sartorius in the upper

    medial side of Tibia. Hip joint Knee joint Dr. Sherif Fahmy
  14. Origin of vastus intermedius from upper 2/3 of anterior and

    lateral surfaces of shaft of femur Dr. Sherif Fahmy
  15. Intertrochantric line Spiral line Gluteal tuberosity Linea aspera Medial supra-

    condylar line Back Front Greater trochanter Less trochanter Dr. Sherif Fahmy
  16. Upper part of origin of vastus medialis Upper part of

    vastus lateralis Dr. Sherif Fahmy Intertrochanteric line
  17. Nerve Supply of Muscles of Front of Thigh Femoral nerve

    supplies all muscles of anterior compartment of thigh except psoas major which is supplied by upper 3 lumbar nerves.
  18. ASIS Sartorius m. Rectus femoris Tensor fascia lata V.medialis Iliacus

    m Psoas major m. Ilio- psoas m. Inguinal ligament Pectineus m. Adductor longus m. Gracilis m. Dr. Sherif Fahmy
  19. ASIS Sartorius m. Rectus femoris Tensor fascia lata V.medialis Iliacus

    m Psoas major m. Ilio-psoas m. Inguinal ligament Pectineus m. Adductor longus m. Gracilis m. Dr. Sherif Fahmy V. Lateralis Ilio-tibial tract
  20. Rect us Femo ris Sartor ius (cut) iliopso as Pectin

    eus Adduct or longus Adduct or magnu s Adducto r hiatus Vastus lateral is Vastu s media lis Gracili s Lat. Med. Dr. Sherif Fahmy
  21. Sartor ius (cut) Rectu s femori s Vastu s lateral

    is Vastus medial is Ilio- psoas Pectin eus (cut) Obtura tor extern us Adduct or longus (cut) Adduct or brevis Adduct or magnu s Adduct or hiatus Gracil is L. M. Dr. Sherif Fahmy
  22. Pectineal surface Pubic body Inferior pubic ramus Ischeal ramus Lower

    lateral part of lower triangular area of ischeal tuberosity Pubic crest Dr. Sherif Fahmy Pubic tubercle
  23. Pectineu s Pectineal surface and line Pectineal line Rounded tendon

    below pubic crest Adductor longus Linea aspera Dr. Sherif Fahmy
  24. Adductor brevis m. Lower ½ of pectineal line and upper

    part of linea aspera Gracilis m. Sartorius m. L M Pubic body & inferior pubic ramus Upper medial side of tibia Dr. Sherif Fahmy
  25. Pubic part Ischeao-pubic ramus (outer surface of pubic arch) Medial

    margin of gluteal tuberosity Medial lip of linea aspera Medial supracondylar line Lateral area of lower triangular part of ischeal tuberosity Ischial part Adductor tubercle Adductor hiatus Dr. Sherif Fahmy
  26. Nerve Supply of Adductor Muscles -All adductors are supplied by

    obturator nerve except: -Pectineus is supplied by femoral nerve, accessory obturator or anterior division of obturator n. -Ischial part of adductor magnus is supplied by tibial part of sciatic nerve. N.B. Anterior division of obturator nerve supplies adductor brevis, adductor longus, Gracilis. Posterior division of obturator nerve supplies Dr. Sherif Fahmy
  27. Action of Adductor Muscles 1- All are adductors of thigh.

    2- Adductor longus, brevis and pubic part of magnus are medial rotators of thigh. 3- Pectineus flexes hip and gracilis flexes and medially rotates leg. 4- Ischial part of adductor magnus extends hip j. Dr. Sherif Fahmy
  28. Anterior Posterior Sciatic n. Hamstring ms Anastomosi s between perforating

    arteries Cruciate anastomosis Gracilis m. is medial. Dr. Sherif Fahmy
  29. Relations of Adductor Magnus Anterior: Pectineus, adductor longus, adductor brevis,

    femoral vessels, profunda vessels and posterior division of obturator. Posterior: Hamstring muscles, sciatic nerve and anastomosis between perforating arteries. Medial: Gracilis muscle. Perforations: It is perforated by 4 perforating arteries. Femoral vessels pass through adductor hiatus. Cruciate anastomosis: Above the upper border of the muscle on the back of thigh.
  30. ➢ Muscle strains (overstretch, pulled muscle, tear of some muscle

    fibers) of the adductor longus may occur in horseback riders and produce pain (rider’s strain). ➢ Ossification sometimes occurs in the tendons of adductor muscles. ➢ The ossified tendons are called riders’ bones. Applied Anatomy of Adductor Muscles
  31. Obturator nerve Obturator externus Adductor brevis Adductor longus m. Anterior

    division Posterior division Gracilis Dr. Sherif Fahmy The nerve passes forewords in the lateral pelvic wall till it reaches obturator canal
  32. Pectineus (cut) Obturator externus Anterior division of obturator nerve Adductor

    brevis Posterior division of obturator n. Gracili s Adductor longus (cut) Adductor magnus Dr. Sherif Fahmy Dr. Sherif Fahmy
  33. Branches of Obturator Nerve Anterior division: A-Muscular: To adductor brevis,

    adductor longus, gracilis and may give a branch to pectineus. B-Articular: To hip joint. C-Cutaneous: To small area in the middle of medial surface of the thigh. Posterior division: A-Muscular: To obturator externus, adductor brevis and pubic part of adductor magnus. B-Articular: To knee joint.
  34. Inferior epigastric artery Obturator artery from internal iliac artery Pubic

    branch of inferior epigastric a. Pubic branch of obturator artery Inner aspect of anterior abdominal wall Abnormal obturator artery Abnormal obturator artery (30 % of cases) External iliac artery Inner aspect of superior pubic ramus Dr. Sherif Fahmy
  35. Abnormal obturator artery: ➢In 30 % of cases, obturator artery

    is absent (not arising from internal iliac artery). ➢In this case, pubic branch of inferior epigastric artery is enlarged to replace the absent obturator. ➢It is named abnormal obturator artery. ➢Abnormal obturator artery may be injuried in femoral hernia operation.