Efficacy of Ultrasound-Guided Genicular Nerve Radiofrequency Ablation Therapy

Cybex 770, Humac Norm Dynamometer (CSMI, Stoughton, MA, USA): Isokinetic muscle strength of the quadriceps and hamstring muscles

Cybex 770, Humac Norm dynamometer (CSMI, Stoughton, MA, USA) will be used to measure the isokinetic muscle strength of the quadriceps and hamstring muscles. During the test, while the knee joint moves from 90 degrees to 0 degrees, 5 maximum contraction repetitions are provided at an angular speed of 60/sec for muscle strength and 15 maximum repetitions of contraction at an angular speed of 180/sec are provided for muscle endurance.10-second rest period is left between repetitions.The preparation set is applied before the test.Afterwards, there is a 2-minute rest period before starting the test.Isokinetic knee extensor and flexor mean peak torque is determined and It is standardized according to body weight(Peak torque/body weight:Newton-metre/kg).Higher values in peak torque indicate better levels of muscle strength and endurance.

HUBER 360 Evolution Device (LPG, Valence, France)

HUBER 360 Evolution device will be used in balance-coordination evoluation.The patient will be placed on a multi-axis platform and 4 different tests will be applied.

Cybex 770, Humac Norm dynamometer (CSMI, Stoughton, MA, USA): Proprioception of the knee joint

A Cybex 770, Humac Norm dynamometer (CSMI, Stoughton, MA, USA) will be used to measure proprioception of the knee joint. During the test, participants will be blindfolded to eliminate visual input. Initially, for the preparation set, the participants' knee joint will be passively flexed from 90 degrees to 45 degrees and they will be provided with an understanding of the test angle. During the test, the device will enter isokinetic con/con mode and the participant will be able to actively move the knee. When the participant moves the knee to the test angle, the value will be recorded and the absolute angular error, i.e. the difference between the recorded angle and the target angle (45 degrees), will be determined. The test will be repeated 3 times and the values will be averaged.The farther the measured value is from the target value, the more impaired proprioception is.

Romberg Test

Stability: The movement of the patient's center of pressure will be measured with a test inspired by the Romberg test, performed on two feet for 50 seconds with both eyes open and closed.This test evaluates static balance, muscle fatigue, and visual effects. In this test, the normal values of the stability coefficient are between 1.11 and 6.77.Values measured outside this range indicate a deterioration in stability.

Single Leg Test

Single leg test: The balance test on one leg is applied for a maximum of 30 seconds.The right and left side imbalance, that is, the inequality in laterality that affects static balance, determines the risk of falling.The single leg test will be applied to the healthy and diseased sides, and length and area values will be obtained with the test.High length and area values indicate poor balance.

Walking

This test, which performs stato-dynamic analysis with a vertical ramp for 50 seconds with the arms extended, is inspired by the Fukuda test.It shows the number of steps and is related to walking speed.A minimum of 80 steps must be taken for the test to be evaluated.A high number of steps taken in a fixed time period indicates that the walking speed is at a good level.

Coordination

It is a test that evaluates the patient's capacity to coordinate movements.During the test, the patient must maintain a constant force in an unstable environment and as quickly as possible.Thus, the capacity to manage multiple tasks simultaneously is evaluated.There are 30 different levels in the test, and the level the patient reaches is determined by the time spent in this process.The difficulty level increases as the level progresses, thus indicating better coordination.