Genicular nerve ablation outcomes

Statistical analysis

Results

Baseline characteristics

Demographics of the study population (N = 64) are summarized in Table 1 below.

Table 1: Demographics of the study population

Characteristic	Overall, N = 641	Female, N = 571	Male, N = 71
Age (years)	62 (13)	62 (13)	54 (11)
Height (cm)	166 (8)	164 (7)	181 (6)
Weight (kg)	106 (27)	105 (27)	118 (29)
BMI (kg/m^2)	39 (10)	39 (10)	36 (9)
Left knee surgery	40 (63%)	33 (58%)	7 (100%)
Right knee surgery	37 (58%)	37 (65%)	0 (0%)
Both knees surgery	13 (20%)	13 (23%)	0 (0%)
1 Mean (SD); n (%)

Baseline knee information is summarized in Table 2 below.

Table 2: Baseline knee information

Characteristic	Overall, N = 771	Left, N = 401	Right, N = 371
KL grade
1	1 (1.3%)	1 (2.5%)	0 (0%)
2	3 (4.0%)	2 (5.0%)	1 (2.9%)
3	16 (21%)	7 (18%)	9 (26%)
4	55 (73%)	30 (75%)	25 (71%)
Unknown	2	0	2
Medial joint space narrowing	62 (81%)	36 (90%)	26 (70%)
Lateral joint space narrowing	18 (23%)	9 (23%)	9 (24%)
Patellofemoral joint space narrowing	40 (52%)	21 (53%)	19 (51%)
Most severe joint space narrowing
Medial	54 (72%)	32 (80%)	22 (63%)
Lateral	7 (9.3%)	2 (5.0%)	5 (14%)
Patellofemoral	14 (19%)	6 (15%)	8 (23%)
Unknown	2	0	2
Current pain score	5.58 (2.12)	5.68 (2.15)	5.49 (2.10)
Typical pain score (last week)	6.65 (1.82)	6.58 (1.88)	6.73 (1.77)
Worst pain score (last week)	8.79 (1.44)	8.88 (1.30)	8.70 (1.58)
Anterior location of pain	65 (84%)	34 (85%)	31 (84%)
Medial location of pain	56 (73%)	30 (75%)	26 (70%)
Lateral location of pain	28 (36%)	13 (33%)	15 (41%)
Location of worst pain
Anterior	36 (47%)	18 (45%)	18 (49%)
Medial	30 (39%)	15 (38%)	15 (41%)
Lateral	11 (14%)	7 (18%)	4 (11%)
Not applicable (no pain)	0 (0%)	0 (0%)	0 (0%)
WOMAC total	55 (15)	56 (15)	54 (15)
1 n (%); Mean (SD)