Johns Hopkins University School of Medicine.
Arthroscopy. 2019 May;35(5):1629-1630. doi: 10.1016/j.arthro.2019.01.008.
The medial patellofemoral ligament (MPFL) is the primary static stabilizer to lateral patellar translation, and reconstruction of this ligament has been shown to be successful in reducing dislocation rates and improving functional outcomes in the treatment of patellar instability. Recent studies have warned that complication rates after MPFL reconstruction can be as high as 25%, with patellar fracture being one of the most catastrophic complications that can occur after this procedure. While the use of a bone socket versus cortical fixation on the patella does not appear to influence outcomes, surgeons should take into account the factors of graft and tunnel positioning, graft length/tension, and the need for concurrent procedures in each individual patient when performing this procedure. Any violation of the patella, whether as a socket or for anchor placement, should avoid the anterior cortex and maintain an adequate bony bridge that should be modified according to the patient's anatomy. The optimal technique for MPFL reconstruction continues to evolve, and further studies are needed to identify the ideal type and position of patellar fixation to minimize risks of complications and optimize surgical outcomes when performing MPFL reconstruction in the treatment of patellar instability.
内侧髌股韧带(MPFL)是外侧髌骨平移的主要静态稳定结构,重建该韧带已被证明可成功降低髌骨脱位率并改善髌骨不稳定的治疗效果。最近的研究警告称,MPFL 重建后的并发症发生率可能高达 25%,髌骨骨折是该手术后最严重的灾难性并发症之一。虽然髌骨上的骨槽与皮质固定的使用似乎并不影响结果,但外科医生在进行该手术时,应考虑到移植物和隧道定位、移植物长度/张力以及每个患者是否需要同时进行其他手术等因素。任何对髌骨的侵犯,无论是骨槽还是用于锚定的部位,都应避免前皮质,并保持足够的骨桥,根据患者的解剖结构进行修改。MPFL 重建的最佳技术仍在不断发展,需要进一步的研究来确定髌骨固定的理想类型和位置,以最大程度地降低并发症风险并优化手术效果。