Abstract

To investigate the medium-term clinical outcome of encircled suture for repair of medial meniscus bucket-handle tear (BHT). Between March 2011 and June 2013, 78 patients (78 knees) with medial meniscus BHT were treated with encircled suture under arthroscopy. There were 57 males and 21 females with a mean age of 28.3 years (range, 16-39 years). The causes included sports injury in 61 cases, traffic accident injury in 12 cases, and other trauma in 5 cases. Of 78 cases, 35 were acute injury and 43 were chronic injury; 65 cases had combined injury of anterior cruciate ligament rupture. International Knee Documentation Committee (IKDC) score, Lysholm score, and Tegner score were 48.2±6.3, 43.6±4.7, and 2.5±0.6, respectively. Barrett's assessment standard, MRI, and arthroscopy examination were used for assessment of meniscus healing. IKDC score, Lysholm score, and Tegner score were used for assessment of knee function. Primary healing of incisions were achieved in all patients, and no complications occurred. All patients were followed up 26-63 months (mean, 42.8 months). BHT recurrence was observed in 2 patients within 1 year. Clinical healing of meniscus tear was obtained in 72 cases (92.3%) according to Barrett's assessment standard. The IKDC score, Lysholm score, and Tegner score were significantly improved to 81.5±5.1, 86.9±3.9, and 6.2±0.5 respectively ( t=-14.598, P=0.000; t=-18.478, P=0.000; t=-3.362, P=0.002). MRI results showed complete healing in 56 cases, incomplete healing in 15 cases, and unhealing in 7 cases at last follow-up, with a total healing rate of 91.0% (71/78) and a complete healing rate of 71.8% (56/78). In 21 cases undergoing arthroscopy at 18-49 months after operation, complete healing and incomplete healing were observed in 17 cases and 4 cases respectively, with a total healing rate of 100% (21/21) and a complete healing rate of 81.0% (17/21). No re-tear occurred. Encircled suture for repair of medial meniscus BHT owns the advantage of firm suturing and good blood supply which can obtain satisfactory medium-term clinical results.

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