A nerve plexus is a branching network of intersecting nerve Plexus present at the lumbar region or the abdominal region called lumber plexus

2. LUMBAR PLEXUS INJURIES

3. LAYOUT:
• LUMBER PLEXUS
• MAIN BRANCHES
• THEIR INJURIES

4. LUMBER PLEXUS:
• A nerve plexus is a branching network of intersecting
nerve
• Plexus present at the lumbar region or the abdominal
region called lumber plexus

5. MAIN BRANCHES:
• Ilioinguinal (L1)
• Iliohypogastric (L1)
• Genitofemoral (L1,L2)
• Lateral cutaneous nerve of thigh (L2,L3)
• Femoral nerve (L2,L3,L4)
• Obturator nerve (L2,L3,L4)

6. INJURIES OF LUMBAR PLEXUS
• INJURY OF ILIOINGUINAL NERVE
 Called ilioinguinal neuralgia
 Due to compression, damage, blunt trauma or in inguinal
hernia surgery
• SYMPTOMS:
 Parasthesias
 Burning pain
 Numbness
 Pain radiates from the anterior of the thigh to the scrotum or
labia but no doesn’t radiates below the knee

7. •INJURY OF ILIOHYPOGASTRIC
NERVE:
 Commonly injured due to abdomin or pelvis injury
 Compression
 trauma
 SYMPTOMS:
 Discomfort and pain in inguinal and pubic region
 Pain worsened by the extension of lumbar spine
 Hyper or hypoasthesia may also be present

8. INJURY OF GENITOFEMORAL
NERVE:
 Injured due to pressure exerts on the nerve
 Pelvis tumor
 Surgery
 Trauma
• SYMTOMS:
 Groin pain if genital branch is injured
 Inner thigh pain if femoral branch is injured
 Pain is intense when lower back is extended and groin
area is palpated

9. INJURY OF LATERAL CUTANEOUS
NERVE OF THIGH:
 Injured due to compression
 Seat belt injuries
 Due to regional anesthesia given for knee surgery
• SYMPTOMS:
 Meralgia paresthetica ( burning and tingling pain which is
superficial at the lateral side of the thigh)

10. •INJURY OF FEMORAL NERVE:
• Injured due to trauma
• Tumor blocking the nerve
• Prolong pressure on the nerve due to prolong
immobilzation
• Pelvic fraction
• Radiation to pelvis
• Hemorrhage or bleeding
• Diabetes (major cause due to the fluctuation in the blood
sugar and blood pressure)

11. •SYMPTOMS
 Numbness
 Tingling sensation
 Weakness of lower extremities
 Paralysis of anterior compartment muscles
 Dull aching pain in the genital region

12. •INJURUY OF OBTURATOR NERVE:
 Injured due to prolong pressure
 Anterior dislocation of the hip joint
 Abdominal hernia
 Blunt trauma
 Stress fractures
• SYMPTOMS:
 Paralysis of adductor muscles
 Pain and knee joint
 Sensory loss of medial side of thigh

13. •TREATMENT OF NERVE INJURIES:
• ANTI NEUROPATHIC MEDICATION:
 Anti depressants :
 Amitriptyline use to increase the seretonin level in the
brain, relaxes painful muscles and increase the effects of
endrophins
• Anti convulsants:
 Use with anti depressants to releif the pain
 Commonly used pregablinand and gabapentin

14. •SURGICAL TREATMENTS:
 Nerve repair (to sew to ends of nerve together)
 Nerve graft (fragment from a donor nerve is used to
repair)
 Neurolysis (removal of scar tissue causing blockage of
nerve

15. •HOW SERIOUS ARE THE NERVE
INJURIES:
 Prolong pressure on nerve cause occulsion of blood
flow which leads to necrosis
 If there is a damage nerve it means vein and artery
are also damage which causes internal bleeding
 Loss of sensation causes weakness of muscle leads
to falling and fractures of the limb associated with
nerve

16. REFERENCES:
www.teachmeanatomy.com
www.kenhub.com
www.radiopedia.com
www.orthobullets.com

17. ANY QUESTIONS?