Skip to main content

Scoliosis Measurement with Cobb's Method

                     The Cobb Angle is Angle used as a standard measurement to determine and track the progression of scoliosis. it is a very Generalised and common method used by Physiotherapists now a day. Scoliosis of the vertebral column can be assessed with the Cobb's angle.

Image result for scoliosis


                       Cobb's Angle suggests that the angle of curvature can be measured by drawing lines parallel to the upper border of the upper Displaced vertebral body and the lower border of the lowest Displaced vertebra of the structural curve, then erecting perpendiculars from these lines to cross each other, the angle between these perpendiculars being the ‘angle of curvature’.



                              In Above Images, Figures A and B are showing measuring Procedure for Scoliosis with the help of cobb's Angle. Figure B is showing implement of Cobb's Angle On X-Ray View. Sometimes  Hyperkyphosis (it is a kyphotic angle) of greater than 40° commonly measured by the Cobb method.

Measurement of Spinal Curvature for Scoliosis With the Cobb method

1. an anteroposterior view of X-ray is used.
2. A line is drawn parallel to the superior cortical plate of the proximal end vertebra and to the inferior cortical plate of the distal end vertebra. 
3. A perpendicular line is erected to each of these lines, and the angle of intersection of the perpendicular lines is the angle of spinal curvature resulting from scoliosis.
 Such techniques have led the Scoliosis Research Society to classify all forms of scoliosis according to the degree of curvature:

  1. group 1, 0° to 20°; 
  2. group 2, 21° to 30°; 
  3. group 3, 31° to 50°;
  4. group 4, 51° to 75°; 
  5. group 5, 76° to 100°;
  6. group 6, 101°to 125°; 
  7. group 7, 126° or greater.

                           Other noninvasive methods of measuring the curve have been adviced. However, the examiner should use the same method each time for consistency and reliability. The rotation of the vertebrae may also be estimated from an anteroposterior view.  
                            This estimation is best done by the pedicle method, in which the examiner determines the relation of the pedicles to the lateral margins of the vertebral bodies. If rotation is evident, the pedicles appear to move laterally toward the concavity of the curve. The vertebra is in a neutral position when the pedicles appear to be at equal distance from the lateral margin of the peripheral bodies on the film.

According to Cobb's Angle Severity


Not scoliosis
<10°
Mild scoliosis
10 - 30°
Moderate scoliosis
30 - 45°
Severe scoliosis
>45°




Comments

Popular posts from this blog

What is Anatomical pulley? Example of Anatomical pulley

Understanding the Importance of Anatomical Pulleys in Physiotherapy As a physiotherapy student, it is essential to have a good understanding of the human body's anatomy and how it works. One of the essential structures in the body that plays a significant role in movement and biomechanics is the anatomical pulley. In this article, we will explore what an anatomical pulley is, its types, and its importance in physiotherapy. What is an Anatomical Pulley? A pulley is a simple mechanical machine that consists of a wheel that turns readily on the axle, usually grooved for a rope or a wire cable. In the human body, the pulley is replaced by a bone, cartilage, or ligament, and the cord is replaced by a muscle tendon. The tendon is lubricated by synovial fluid, and the surface of the tendon is covered by a thin visceral synovial membrane. The tendon is lubricated so that it may easily slide over the pulley. Classification of Anatomical Pulleys There are mainly four classes of pulleys ...

Electrotherapy Simplified by Basanta Kumar Nanda PDF Download

Electrotherapy Simplified  by Basanta Kumar Nanda The aim of this book is to focus on the electrotherapy simplified. Electrotherapy is one of the important aspects among the various approaches of patient management available to a physiotherapist. Electrotherapy Simplified has tried to give comprehensive knowledge on electrotherapy and actinotherapy, starting from basic electricity and magnetism to the theoretical and clinical aspects of the different modalities applied by physiotherapists.  This book consists of 19 chapters, which include an introduction, inflammation, repair, and role of physical agents, electrical fundamentals, magnetic energy, valves, transistors, and rectifiers, electrical measurement systems and distribution of electricity, electrophysiology of nerve transmission, and muscle contraction, low-frequency currents, electrodiagnosis, medium frequency currents, low-intensity laser therapy, ultraviolet radiation, and traction.  About 250 objective question ...

Range of Muscle work in Physiotherapy

The degree of the movement done by muscle contraction is known as the Range of muscle work. The range can be measured with the help of a goniometer. Movement is a very complex mechanism, a lot of muscles are working in a group and in synchronized pattern to draw out the perfect desirable movement. As per function we already talked about Agonist, antagonist, Synergist, and fixator muscles.