Ultrasound Effect With Hyaluronate Injection on Risk of Fall in Geriatric Women With Knee Osteoarthritis

Ultrasound is a therapeutic modality that has been used by physical therapists to achieve therapeutic benefits. It is alternating compression and rarefaction of sound waves with a frequency of \>20,000 cycles/second. Therapeutic ultrasound frequency will be used by 0.7 to 3.3 MHz. Maximum energy absorption in soft tissue will be 2 to 5 cm. Intensity decreases as the waves penetrate deeper. It is applied using a round headed wand or probe that is put in direct contact with the patient's skin. Ultrasound gel must be used on all surfaces of the head as a conducting medium in order to assist in the transmission of the ultrasonic waves \& to reduce friction.

The type of Hyaluronan injection that will be used in this study consists of High Molecular Weight Hyaluronic acid (High MW HA 3000 kDa), will be given by the orthopedic surgeon.