Ultrasound‐guided injection of the hip: Cadaveric description for the lateral approach

Abstract

BackgroundUltrasound (US)‐guided intraarticular hip joint injections are commonly performed using an in‐plane anterior approach, which has several limitations.ObjectiveTo describe and report a “lateral” (lateral to medial) approach for US‐guided intraarticular hip injection.DesignCadaveric investigation.SettingAcademic institution, department of anatomy.ParticipantsOne cadaveric specimen.MethodsBoth hips of a single cadaver were injected using the US‐guided lateral approach. In the left hip, the needle was inserted and kept in situ. The right hip was injected with white‐colored water‐diluted latex dye. Subsequently, a layer‐by‐layer anatomical dissection was performed.Main Outcome MeasuresPresence and distribution of latex dye and location of needle tip within the joint capsule of the hip.ResultsAnatomical dissection of the left and right hips confirmed the correct intraarticular position of the needle tip and the placement of the latex dye, respectively. During layer‐by‐layer dissection of the left hip, positions of the lateral cutaneous nerve and the lateral circumflex femoral artery were observed anterior to the needle, 30 mm for the nerve and 8 mm for the artery.ConclusionsThis preliminary study demonstrated that the US‐guided lateral approach is a convenient technique to access the hip joint in a cadaveric specimen. Compared with the “classical” anterior technique, the lateral approach may provide several advantages, including improved needle visibility, theoretically decreased risk of vascular injury, and less risk of needle contamination. Because injury to the lateral epiphyseal arteries is possible when lateral approach is used, caution is required, especially in children. These preliminary conclusions will need to be validated in future/larger clinical studies.

Model construction and drug therapy of primary ovarian insufficiency by ultrasound-guided injection

“…Ultrasound has the advantages of being visual and convenient [ 41 ]. At present, ultrasound-guided in situ injection is increasingly favoured in animal models and preclinical studies [ 42 , 43 ]. In the ovary, local ovarian injection of methotrexate ultrasound guided via transvaginal injection was applied to the therapy of nontubal ectopic pregnancies [ 44 ].…”