Inoue Yoshiyuki, Kuroda Kohei
Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan.
Animals (Basel). 2025 Apr 28;15(9):1237. doi: 10.3390/ani15091237.
Total hip replacement (THR) is a common procedure used in veterinary medicine to treat hip joint diseases, particularly in medium- and large-sized dogs. Although cementless techniques have become the standard owing to concerns regarding the aseptic loosening of cemented implants, complications such as stem fractures can still occur. This study reports a case of a 1-year-old, 2.8 kg Toy Poodle that underwent cementless THR using the Zurich mini-cementless hip system to treat Legg-Calvé-Perthes disease. Six months post-surgery, the dog developed a fractured stem, and a second surgery was performed using the "window technique" to replace the broken stem. The procedure involved creating a small window in the femoral cortex to remove the damaged stem and insert a new one. The dog recovered successfully with no further lameness. This case highlights the effectiveness of the window technique for stem replacement in small dogs and emphasizes the importance of optimal stem selection and positioning during the initial THR.
全髋关节置换术（THR）是兽医学中用于治疗髋关节疾病的常见手术，尤其适用于中大型犬。尽管由于担心骨水泥型植入物的无菌性松动，非骨水泥技术已成为标准，但仍可能发生诸如柄部骨折等并发症。本研究报告了一例1岁、体重2.8千克的玩具贵宾犬病例，该犬使用苏黎世微型非骨水泥髋关节系统进行非骨水泥全髋关节置换术以治疗Legg-Calvé-Perthes病。术后六个月，该犬出现柄部骨折，遂采用“开窗技术”进行二次手术以更换断裂的柄部。该手术包括在股骨皮质上开一个小窗口，以取出受损的柄部并插入一个新的柄部。这只狗成功康复，未再出现跛行。该病例突出了开窗技术在小型犬柄部置换中的有效性，并强调了初次全髋关节置换术期间最佳柄部选择和定位的重要性。
