Postoperative Radiograph Of The Hip Arthroplasty!

Radiology is a special branch of medical science that uses various techniques of imaging for the diagnosis and the treatment of several types of diseases in the body. The different types of imaging techniques used in radiology are X-rays, Computerised Tomographic scan (CT Scan), ultrasound, Magnetic Resonance Imaging (MRI) and nuclear medicine which includes Positron Emission Tomography(PET).

Role played in evaluating hip replacement
Hip replacement surgeries have become extremely common in the recent times, and radiological evaluation remains the mainstay of the overall hip replacement procedure. Thus, the role played by radiology is quite significant in such situations. All the specific anatomical landmarks and the measurements are used to make sure the placement is perfect during the hip replacement surgery. Radiological imaging helps in the assessment of the following conditions that are as discussed below.

The length of leg
The inequality in the length of the two legs is prevalent after a hip replacement surgery which can create a great deal of discomfort and inconvenience to the patients. A greater difference in the length of the two legs increases the chances of dislocation, and this is a situation where radiological evaluation plays a crucial role. With the help of radiological imaging, the length of the legs can be made almost equal.

The horizontal center of rotation
In this case, horizontal center of rotation helps in the assessment of the acetabular component of the prosthesis. This is calculated by the measurement of the distance between the center of the head of the femur and the acetabular teardrop. This distance should be bilaterally equal, and it is just not possible without the help of the imaging techniques of radiology.

Acetabular inclination
The acetabular inclination is the angle formed between the face of the cup and the transverse axis. If the angle is less, then it results in a stable hip, but the abduction is limited. On the other hand, if the angle increases then there are high chances of dislocation of the hip. Thus, with the help of radiological evaluation, proper and effective angular inclination is given which is optimum for the patient.

The stem positioning of the femur
The main aim of the stem positioning of the femur in a hip replacement surgery is placing the stem in a position which is neutral within the shaft. To get a proper idea of the positioning, the imaging techniques are of utmost importance which cannot be achieved perfectly without the imaging.

Thus, the crucial role the different techniques of radiological imaging plays during the overall procedure of a hip replacement surgery can be perceived. With the use of the different imaging techniques, the results obtained are closer to perfection.