Intra-articular application of pulsed radiofrequency combined with viscosupplementation for improvement of knee osteoarthritis symptoms: a single centre prospective study

Figures & data

Table 1. Patient demographics.

	N	Minimum	Maximum	Mean	Std. deviation
Height	45	154	185	168.64	7.478
Weight	45	49	103	73.00	12.861
BMI	45	20.28	36.00	25.5517	3.48552
Age	45	58	81	69.49	6.741
Valid N (list wise)	45

Table 2. Demographics per gender.

Characteristics	Male	Female
Age (year)	71.32 ± 5.697	68.15 ± 7.226
Height (cm)	174.58 ± 5.748	164.31 ± 5.320
Weight (kg)	81.63 ± 11.480	66.69 ± 9.911
BMI	26.7485 ± 3.32683	24.6770 ± 3.39543

Figure 1. (A) Face fluoroscopy view of the left knee illustrating the final position of the trocar at the level of the tibial crest. (B) Lateral fluoroscopy of the left knee illustrating the final position of the trocar anteriorly to the tibial crest. (C) The RF electrode is coaxially inserted in the knee joint through the trocar and connected to the generator.

Figure 2. Image illustrating the monitor of the generator during the intra-articular application of pulsed RF inside the knee joint.

Figure 3. Charts illustrating mean pain scores and score deviation prior and during the follow-up period.

Table 3. Descriptive statistics.

	N	Minimum	Maximum	Mean	Std. deviation
Before_RF	53	4	10	8.19	1.401
Week_1	53	0	9	2.47	2.531
Month_1	53	0	10	2.55	2.635
Months_6	53	0	10	3.11	2.853
Year_1	53	0	10	5.02	3.091
Valid N (listwise)	53