Yoshida Mamoru, Marumo Keishi
Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Clin J Sport Med. 2019 Jan;29(1):e4-e6. doi: 10.1097/JSM.0000000000000515.
Some patients complain of chronic persistent medial knee pain after isolated low-grade injuries of medial collateral ligaments (MCL). These injuries often respond to various conservative treatments but insufficient healing of ligaments is believed to be responsible for symptoms in this group of patients. We report on successful treatment of chronically symptomatic MCL injuries in 3 patients using autologous leukocyte-reduced platelet-rich plasma (PRP) injections. There were 3 men with a mean age of 39.3 years and a mean disease duration of 10 months. Magnetic resonance imaging showed discontinuities of superficial layers and thickness of deep layers in the proximal MCL. After PRP injections, all cases returned to their sport activities at a previous level as without symptoms, and complete healing of proximal ligaments was identified on magnetic resonance images. The outcomes indicated that PRP injections led to successful repair for chronic injuries of MCL in knees.
一些患者在孤立的内侧副韧带（MCL）轻度损伤后抱怨膝关节内侧持续慢性疼痛。这些损伤通常对各种保守治疗有反应，但韧带愈合不足被认为是这组患者出现症状的原因。我们报告了3例使用自体白细胞减少的富血小板血浆（PRP）注射成功治疗慢性症状性MCL损伤的病例。有3名男性，平均年龄39.3岁，平均病程10个月。磁共振成像显示近端MCL浅层连续性中断和深层厚度改变。PRP注射后，所有病例都恢复到之前无症状时的运动水平，磁共振成像显示近端韧带完全愈合。结果表明，PRP注射成功修复了膝关节MCL的慢性损伤。
