Jung Mingyu, Je Miseong, Baek Loktam, Chung Jiwon, Choi Jihye, Yoon Junghee
College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University, Seoul, Korea.
Anat Histol Embryol. 2023 Nov;52(6):936-943. doi: 10.1111/ahe.12953. Epub 2023 Jul 25.
Shoulder joint disease is a common cause of forelimb lameness in dogs. To diagnose this condition, shoulder magnetic resonance arthrography (MRA) is performed, which involves the injection of contrast agents into the shoulder joint space under ultrasound (US)-guidance. The objective of this study was to compare the craniolateral and caudolateral approaches for shoulder MRA using US-guided injection techniques, and investigate their clinical feasibility in dogs. Forty shoulder joints from 10 adult beagles were studied in two repetitions. The craniolateral (n = 20) and caudolateral (n = 20) injection techniques were applied randomly under US-guidance. The shoulder MRA was conducted immediately after the contrast agents was injected. The procedure time (scan and injection time), number of attempts, joint distension and degree of extraarticular extravasation were recorded and compared between the two groups. The results showed that the caudolateral approach had significantly more contrast agents extravasation compared to the craniolateral approach (p < 0.05). However, there were no significant differences between the two groups in terms of procedure time (scan time p = 0.80, injection time p = 0.74), number of attempts (p = 0.70) and joint distension (p = 0.23). The craniolateral approach of US-guided contrast injection techniques for shoulder MRA minimizes damage to the juxta-articular structures and reduces extraarticular extravasation, resulting in good-quality images. This study demonstrates the feasibility and advantages of the craniolateral approach under US-guidance for shoulder MRA in dogs.
肩关节疾病是犬前肢跛行的常见原因。为诊断这种疾病，需进行肩关节磁共振关节造影（MRA），该检查包括在超声（US）引导下将造影剂注入肩关节腔。本研究的目的是比较超声引导注射技术下肩关节MRA的颅外侧和尾外侧入路，并研究其在犬中的临床可行性。对10只成年比格犬的40个肩关节进行了两次重复研究。在超声引导下随机应用颅外侧（n = 20）和尾外侧（n = 20）注射技术。注入造影剂后立即进行肩关节MRA。记录并比较两组的操作时间（扫描和注射时间）、尝试次数、关节扩张情况和关节外渗漏程度。结果显示，与颅外侧入路相比，尾外侧入路的造影剂渗漏明显更多（p < 0.05）。然而，两组在操作时间（扫描时间p = 0.80，注射时间p = 0.74）、尝试次数（p = 0.70）和关节扩张（p = 0.23）方面无显著差异。超声引导下肩关节MRA造影剂注射技术的颅外侧入路可将对关节周围结构的损伤降至最低，并减少关节外渗漏，从而获得高质量图像。本研究证明了超声引导下颅外侧入路在犬肩关节MRA中的可行性和优势。
