Helito Camilo Partezani, Foni Noel O, Bonadio Marcelo Batista, Pécora José Ricardo, Demange Marco Kawamura, Angelini Fabio Janson
Universidade de São Paulo (USP), Hospital das Clínicas, Instituto de Ortopedia e Traumatologia, São Paulo, SP, Brazil.
Rev Bras Ortop. 2017 Feb 21;52(2):233-237. doi: 10.1016/j.rboe.2017.02.001. eCollection 2017 Mar-Apr.
Knee ligament reconstructions are commonly performed orthopedic procedures. Graft fixation is generally performed with metallic or absorbable interference screws. In a recent study, only ten reports of screw migration were retrieved; of these, only one was not related to the anterior cruciate ligament, and the majority was related to the use of poly-l-lactic acid (PLLA) screws. Only one case retrieved in the literature reported screw migration in reconstructions of the posterolateral corner, and that was to the intra-articular region. In the present article, the authors report a case of extra-articular and transcutaneous migration of a poly-l/d-lactide (PDLLA) interference screw following popliteal tendon reconstruction. Besides being the first case of popliteal tendon migration with extra-articular screw migration, no reports of PDLLA screw migration were retrieved in the literature.
膝关节韧带重建是常见的骨科手术。移植物固定通常使用金属或可吸收的干涉螺钉。在最近一项研究中，仅检索到10例螺钉移位的报告；其中，仅有1例与前交叉韧带无关，且大多数与聚左旋乳酸（PLLA）螺钉的使用有关。文献中检索到的仅有1例报告了后外侧角重建中螺钉移位，且移位至关节内区域。在本文中，作者报告了1例腘肌腱重建后聚左旋/右旋乳酸（PDLLA）干涉螺钉关节外及经皮移位的病例。这不仅是首例伴有关节外螺钉移位的腘肌腱移位病例，而且文献中未检索到PDLLA螺钉移位的报告。
