1 / 53

Knee region

Knee region. Bones Joint Muscles Artery & Nerves. Knee osteology. Distal end of femur Anterior. Distal end of femur Posterior. Femur post. . Femur ant. . Medial. Lateral. Patella. Patella. Proximal Tibio -fibular joint. Tibia Fibula. No movement!.

milek
Download Presentation

Knee region

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Knee region • Bones • Joint • Muscles • Artery & Nerves

  2. Knee osteology

  3. Distal end of femur Anterior

  4. Distal end of femur Posterior

  5. Femurpost. Femurant.

  6. Medial Lateral

  7. Patella

  8. Patella

  9. Proximal Tibio-fibular joint Tibia Fibula No movement! Distal Tibio-fibular joint

  10. TibiaProximal end

  11. Anterior Posterior

  12. Tibiofemoral (knee) Joint

  13. Largest and most complex joint • Actually 3 joints within a single synovial cavity: • Laterally: tibiofemoral joint • Medially: tibiofemoral joint • Intermediate: patellofemoral joint

  14. Knee joint • MenisciMedial meniscus lateral meniscus • Ligaments Cruciate ligaments Collateral ligaments Patellar ligament oblique popliteal ligament • Joint capsuleSynovial membrane Fibrous membrane

  15. Minisci : fibrocartilaginous ‘shock absorbers’

  16. semilunar cartilages

  17. Attachments

  18. 1. The medial meniscus is more injured than the lateral meniscus, why?

  19. Ligaments • anterior cruciate ligament (ACL) • posterior cruciate ligament (PCL) • medial collateral ligament (MCL, tibial collateral ligament) • lateral collateral ligament (LCL , fibular collateral ligament) • oblique popliteal ligament • ligamentum patellae

  20. Cruciate ligaments ACL: Anteromedial part of the intercondylar area of tibia to inner aspect of lateralcondyle of femur. PCL: Posterolateral part of the intercondylar area of the tibia to inner aspect of medialcondyle of femur.

  21. AnteriorCruciate ligament prevents anterior displacement of the tibia in relation to femur in flexion.

  22. PosteriorCruciate ligament prevents posterior displacement of the tibia in relation to femur in extension.

  23. How to test ACL and PCL? Drawer sign test

  24. Anterior Drawer Test for ACL • Physician Position & Movements • Patient Position Note direction of forces

  25. Posterior Drawer Testing- PCL Note direction of forces

  26. Collateral ligaments

  27. MCL attaches to the medial meniscus

  28. 2. The medial meniscus is more injured than the lateral meniscus, why?

  29. Collateral ligaments action • Protect the knee joint from bending side to side. • Helps the locking mechanism

  30. 3. The medial meniscus is more injured than the lateral meniscus, why?

  31. Locking mechanism:less energy to maintain the standing position • Medial rotation of femur on the tibia during full extension tightencolateral ligaments.

  32. Locking mechanism (2) • Joint surfaces become larger and more stable in extension.

  33. Locking mechanism (3) • body's center of gravity is positioned along a vertical line that passes anterior to the knee joint.

  34. Locking mechanism

  35. Collateral ligaments test

  36. Test for MCL Note Direction Of Forces

  37. Test for LCL Note direction of forces

  38. Patellar ligament Strengthening Anterior Aspect of Knee Joint

  39. Patellofemoral stress syndrome • “Runner’s Knee” • Patella does not glide up and down but rather laterally causing pain.

  40. oblique popliteal ligament

  41. Review • (1) patellar ligament • (2) tibial (medial) collateral ligament • (3) fibular (lateral ) collateral ligament • (4) medial meniscus • (5) lateral meniscus • (6) anterior cruciate ligament • (7) posterior cruciate ligament

  42. Joint fibrous capsule

  43. Joint synovial membrane

More Related