Clinical improvement (partial or complete pain resolution) was obtained in 65,9% of patients (27 patients),
of which complete resolution of pain was reached in 22% (9 patients) and partial resolution in 43,9% (18 patients)
The percentage of patients not achieving pain relief was 34,1% (14 patients),
of which therapeutical failure patients -whom needed a new surgical procedure- were 17,1% (7 patients)
Fig. 9: General clinical improvement results
Fig. 10: Failure of treatment, considered as the need for new surgical treatment
The 14 patients with other sources of pain detected on CT: heterotopic ossification (7 cases),
screw malpositioning (3 cases),
cement migration (1 case),
prosthetic shaft loosening (1 case),
pelvic bone Paget (2 cases),
multiple myeloma lesions (1 case),
lumbar arthrodesis (2 cases),
spondylolisthesis (1 case),
lumbar foraminal stenosis (1 case) obtained worse clinical results,
reaching statistical significance (Chi2=8,670; p=0,013)
Fig. 11: Differences in outcome depending on other visible causes of pain in CT
Men obtained worse clinical results than women,
reaching statistical significance (Chi2=6,364; p=0,042)
Fig. 12: Outcome depending on gender
There were no statistically significant differences in the results for groups with and without fat infiltration of psoas muscle,
nor for groups with no atrophy,
atrophy grade 1 and grade 2
Fig. 13: Results depending on fat infiltration
Fig. 14: Results depending on psoas atrophy
There were no statistically significant differences in the results depending on the mm of overhanging acetabular cup.
Mean measure of overhanging acetabular cup in each of the outcome groups:
-Complete resolution of pain: 9,75 mm
-Partial resolution of pain: 7,63 mm
-No pain relief: 7,45 mm