Patients’ characteristics and baseline variables

Variable IAI (n = 30) PENG (n = 30) P value
Age (yr) 62.70 ± 7.74 61.80 ± 6.44 0.626
Body mass index (kg/m2) 29.27 ± 2.52 29.09 ± 2.18 0.768
Sex (M/F) 13/17 14/16 0.795
Duration of symptoms (mo) 19.60 ± 7.45 19.23 ± 9.46 0.866
Smoking status 0.731
Current 7 (23.3) 8 (26.7)
Former 7 (23.3) 9 (30.0)
Never 16 (53.3) 13 (43.3)
Kellgren–Lawrence stage (2/3) 21/9 20/10 0.781
Central sensitization inventory 27.16 ± 9.02 29.63 ± 7.53 0.112
NRS score 6.96 ± 0.99 7.10 ± 1.26 0.618
WOMAC score 51.73 ± 9.09 49.0 ± 8.12 0.225
HHS 50.66 ± 7.11 49.48 ± 8.30 0.557
QAQ score 3.90 ± 0.92 3.53 ± 1.13 0.175
Sonographic findings in the enrolled hips
Bone-capsule distance (mm) 5.84 ± 1.28 5.68 ± 1.45 0.645
Joint effusion 0.718
Absent 26 (86.7) 25 (83.3)
Present 4 (13.3) 5 (16.7)
Femoral head deformation 0.706
None 5 (16.7) 7 (23.3)
Mild 22 (73.3) 19 (63.3)
Moderate 3 (10.0) 4 (13.3)
Severe 0 0

Values are presented as mean ± standard deviation and numbers (%) of patients.

IAI: intra-articular injection, PENG: pericapsular nerve group, NRS: numerical rating scale, WOMAC: Western Ontario and McMaster University Osteoarthritis Index, HHS: Harris Hip Score, QAQ: quantitative analgesic questionnaire.

P < 0.05 is considered statistically significant.

Korean J Pain 2023;36:195~207 https://doi.org/10.3344/kjp.22325
© Korean J Pain