PELVIC INLCINATION physiotherapy PPT-1.pptx

Pelvic inclination

1. PELVIC INCLINATION PRESENTED BY GOMA BISWAKARMA, NITUTPAL GOGOI , ANTARA MURMU

2. content 1) Angulation of femur Angle of inclination Coxa vara Coxa valga Angle of torsion Anteversion retroversion Anterior pelvic tilt Posterior pelvic tilt Lateral pelvic tilt Pelvic rotation 2) Pelvic tilt

3. Introduction Pelvic inclination is the tilt of pelvis in relation to the rest of the body. It affects the alignment of the spine, hips & legs and can impact posture and movement. It is crucial in maintaining good posture and overall health. 20XX presentation title 3

4. ANGULATION OF FEMUR 1 . ANGLE OF INCLINATION 2 . ANGLE OF TORSION

5. 1. ANGLE OF INCLINATION The angle of inclination is the angle formed between an axis through the head & neck of the femur and an longitudinal axis through the shaft of the femur. It occurs in the frontal plane. Its normal value is 125 degree. Angle of inclination is seen lesser in women than in compare to men. The angle of inclination changes with life span. At the time of birth ,it approximates 150 degree and gradually declines to about 125 degree at skeletal maturity. 20XX presentation title 5

6. COXA VARA A pathologically smaller medial angulation( less than 125 degree) between neck and shaft of femur is called coxa- vara . The increase articulation between the head of the femur and acetabulum leads to increased stability and thus improved congruency. Coxa vara has a disadvantage of increasing the bending moment along the femoral head and neck It also decreases the joint reaction forces. 20XX presentation title 6

7. COXA VALGA A pathologically increase in the medial angulation (greater than 125 degree) between the neck and shaft of femur is called coxa- valga . The decrease in the contact of articular surface decrease the stability of the hip joint . Thus, more susceptible to dislocation. It increases the joint reaction forces. There is decrease in bending force across the femoral head due to increase in the angle of inclination 20XX presentation title 7

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9. 2. ANGLE OF TORSION The angle of torsion of the femur is an angle created between an axis through the femoral head and neck and an axis through the distal femoral condyles. It occurs in transverse plane. Normal range is from 10-20 degree. Angle of torsion is symmetrical in both the limbs. Its value is 30-40 degrees at birth and it gradually decreases by 1.5 degree by skeletal maturity. 20XX presentation title 9

10. ANTEVERSION When the angle of torsion increases more than 10-20 degrees is called femoral anteversion . 2.The articular contact is less due to which a large portion of the femoral head is exposed anteriorly and the stability decreases. 3.As the stability decreases so the muscular efficiency decreases. 4.The strength of the abductor muscles is decreased 20XX presentation title 10

11. Excessive Anteversion 20XX presentation title 11

12. RETROVERSION 1.When the angle of torsion decreases i.e less than 10-20 degree is called retroversion of the femur. 2.The contact between the acetabular and femoral surface increases as a result the stability also increases. 3.Retroversion might also lead to labral tear. 4.The muscle efficiency increases. 20XX presentation title 12

13. Retroversion 20XX presentation title 13

14. Angle of torsion 20XX presentation title 14

15. PELVIC TILT IT IS AN ANGLE CREATED BY A LINE RUNNING FROM SACRAL ENDPLATE MIDPOINT TO CENTRE OF BIFEMORAL HEADS &VERTICAL AXIS 20XX presentation title 15

16. ANTERIOR PELVIC TILT Anterior tilting of the pelvis on the fixed femur produces hip flexion. Hip flexion through anterior tilting of the pelvis moves the ASIS anteriorly and inferiorly, the inferior sacrum moves farther from the femur , rather than moving the femur away from the sacrum. The muscles work of anterior tilting are- 1. hip flexors and spinal extensors shortens 2. hip extensors and abdominal lengthens 20XX presentation title 16 It is a motion occurring in the sagittal plane around an coronal axis.

17. ANTERIOR PELVIC TILT MUSCLE WORK

18. POSTERIOR PELVIC TILT It is a motion of entire pelvis occur in sagittal plane around a coronal axis. ASIS moves posteriorly. Pubic symphysis moves away from the femur instead of femur moving away from the pubic symphysis. Sacral angle decreases and the lumbar lordosis also decreases. The muscle work for posterior pelvic tilt are – 1 ) hip flexors and spinal extensors lengthens 2) hip extensors and abdominal muscles shortens 20XX presentation title 18

19. POSTERIOR PELVIC TILT MUSCLE WORK 20XX presentation title 19

20. Pelvic tilt in relation to neutral pelvis 20XX presentation title 20

21. Lateral pelvic tilt Lateral pelvic tilt is a frontal plane motion of the entire pelvis around a anterior posterior axis (Z axis) In a normally aligned pelvis, a line through the ASIS is horizontal. Possible during the unilateral and bilateral stance. In unilateral stance one hip is fixed and another is freely moving and result in hip drop or hike. 20XX presentation title 21

22. LATERAL PELVIC TILT

23. 1.Hip hiking In normal person the hip hiking occurs while clearing the foot from the ground. This movement support to clear the foot from the ground during swing phase of gait. In hiking , ASIS moves upwards and medially. Spines goes for flexion in the same side. Hip goes for abduction in hiking( elevating) side. Hiking occurs due to the contraction of the quadratus lumborum and the spinal side flexors. 20XX presentation title 23

24. 2. Hip dropping ASIS moves inferiorly. Spines goes for opposite side flexion . Hip goes for adduction in the drop side. Pelvic drop occurs due to the opposite hip abductors weakness. This sign is called as Trendelenburg’s sign. Both the signs abductors paralysis leads to wadding type of gait otherwise called as ‘DUCK WALKING’. In bilateral stance, if the weight is transferred to the right side, dropping occurs in the same side. During right side dropping the hip goes for adduction in the tilted side and abduction in he opposite side. 20XX presentation title 24

25. Lateral pelvic tilt 20XX presentation title 25

26. Pelvic rotation Pelvic rotation is a motion of the entire pelvic ring in the transverse plan around a vertical or longitudinal axis. Forward rotation of the pelvis occurs in unilateral stance when the side of the pelvis opposite to the weight. It produces medial rotation of the weight bearing hip joint Backward rotation of the pelvis occurs when the side of the pelvis opposite the weight bearing hip moves posteriorly. It produces lateral rotation of the weight bearing hip joint The pelvic rotation occurs in bilateral as well as in unilateral stance. 20XX presentation title 26

27. Pelvic rotation 20XX presentation title 27

28. CONCLUSION Pelvic inclination affects not only posture but also the alignment, function, and comfort of the entire body. By understanding and addressing pelvic tilt , we can improve our overall health and well-being. 20XX presentation title 28

29. REFERENCE JOINT STRUCTURE & FUNCTION BY CYNTHIA C.NORKIN THERAPEUTIC EXERCISES BY LAKSHMI NARAYANAN

30. THANK YOU FOR YOUR COOPERATION 20XX presentation title 30