Huri Gazi, Biçer Omer Sunkar
Department of Orthopaedic and Traumatology Surgery, Cukurova University, Adana, Turkey ; Division of Sports Medicine, Department of Orthopaedic and Traumatology Surgery, Johns Hopkins University, 10753 Falls Road, Lutherville, Baltimore, MD 21093, USA.
Case Rep Orthop. 2013;2013:837140. doi: 10.1155/2013/837140. Epub 2013 Feb 6.
We report a case of partial intrasubstance tear of popliteus tendon as an unusual cause of pseudolocking of the knee. A 13-year-old semiprofessional soccer player applied to our clinic with a locked right knee in spite of the therapy applied (cold pack, NSAID, and immobilization) in another institution 20 days after the injury. Significant extension loss was observed in his right knee with 30°-90° ROM. Magnetic resonance imaging (MRI) and arthroscopy confirmed the intrasubstance tear of popliteus tendon and synovitis. The ruptured part of the tendon was debrided, and the inflammatory tissue around the tendon, which may lead to pseudolocking, was gently removed with a shaver in order to regain the normal ROM. The patient was discharged with full ROM and weight bearing first day after the surgery. To our knowledge, this is the first case demonstrating intrasubstance tear of popliteus tendon causing pseudolocking of the knee.
我们报告一例腘肌腱实质内部分撕裂导致膝关节假性绞锁的罕见病例。一名13岁的半职业足球运动员在受伤20天后，尽管在另一家机构接受了治疗（冷敷、非甾体抗炎药和固定），仍因右膝关节绞锁前来我院就诊。其右膝关节活动范围为30°-90°，明显存在伸展受限。磁共振成像（MRI）和关节镜检查证实了腘肌腱实质内撕裂和滑膜炎。对肌腱的破裂部分进行清创，并使用刨削器轻柔地清除肌腱周围可能导致假性绞锁的炎性组织，以恢复正常的活动范围。患者术后第一天出院时活动范围完全恢复且可负重。据我们所知，这是首例显示腘肌腱实质内撕裂导致膝关节假性绞锁的病例。
