Article

The objective of this study was to examine the accuracy of
ultrasound-guided intra-articular (IA) injections on three different sites of the
knee using midmedial, midlateral, and superolateral portals. DESIGN:
Ultrasound-guided IA injection and a radiographic evaluation were performed on
120 knees with osteoarthritis. Five milliliters of a mixed material consisting of
1% lidocaine (1 ml), 20 mg of triamcinolone (1 ml), and nonionic contrast (3 ml)
was injected into the IA space of the knee through three different portals. After
each injection, a radiographic evaluation was performed to determine whether the
injected material had reached the IA space or infiltrated into the soft tissue.
RESULTS: Of 40 injections administered through the midmedial portal, 38 were
confirmed as having been placed in the IA space on the first attempt (95%
accuracy rate). Thirty-nine of 40 injections administered through the midlateral
portal were IA on the first attempt (98.5% accuracy rate), as were 40 of 40
injections administered through a superolateral portal (100% accuracy rate). No
significant differences (P > 0.05) were observed in the accuracy rate obtained
with placement through the midmedial, midlateral, and superolateral portals.
CONCLUSIONS: All three ultrasound-guided IA injections may be used to access the
knee joint, with a high rate of accuracy.
- Injection intra-articulaire - ultrasons

Langue : ANGLAIS