Simultaneous ipsilateral “floating-hip” and “floating-knee” injuries are very rare and severe, and they occur in high-velocity road traffic accidents. A 55-year-old man presented with posterior wall fracture – dislocation of the acetabulum, complete fracture – dislocation of the femoral head, ipsilateral femoral shaft fracture, open patellar fracture, Gustilo type II, tibial fracture, and traumatic sciatic nerve injury/peroneal division. Given the fact that hip dislocation is an orthopedic emergency, we first did closed external tibial fixation, femoral head reduction, osteosynthesis of the acetabular fracture, and partial patellectomy. After 2 days, the patient underwent a second surgery; fixation of the neck and femoral shaft fractures was done, with a self-dynamic internal fixator. After 14 months from the injuries, radiographs show complete healing of all fractures, the patient walks independently without crutches, and the peroneal nerve is partially recovered. Despite the seriousness of the presented injuries, we did not have any complications, and 14 months after the injury, the femoral head is still viable, with no signs of femoral head osteonecrosis.
Case Rep Orthop Res 2021;4:255–260

中文翻译：

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同侧“漂浮髋”同时伴有髋关节脱位和股骨颈和股骨干骨折与“漂浮膝”损伤伴髌骨骨折和外伤性坐骨神经损伤相关

同时发生的同侧“浮髋”和“浮膝”损伤非常罕见和严重，多发生在高速道路交通事故中。一名 55 岁男性因后壁骨折 – 髋臼脱位、完全性骨折 – 股骨头脱位、同侧股骨干骨折、开放性髌骨骨折、Gustilo II 型、胫骨骨折和外伤性坐骨神经损伤/腓骨就诊分配。鉴于髋关节脱位是骨科急症，我们首先进行了胫骨闭合外固定、股骨头复位、髋臼骨折接骨术和部分髌骨切除术。2天后，患者接受了第二次手术；颈部和股骨干骨折的固定是用自动力内固定器完成的。受伤14个月后，X线片显示所有骨折完全愈合，患者无需拄拐独立行走，腓神经部分恢复。尽管所呈现的损伤很严重，但我们没有出现任何并发症，并且在受伤 14 个月后，股骨头仍然存活，没有股骨头坏死的迹象。
案例代表 Orthop Res 2021；4:255–260