To investigate the clinical effect of arthroscopic partial menisectomy in the treatment of knee meniscus injury.

From November 2017 to November 2018, 98 patients with knee meniscus injury treated in the Department of Orthopedics, the Fourth Affiliated Hospital of Nantong University were collected. Patients in the control group were treated with open meniscectomy (n=49). Patients in the study group were treated with arthroscopic partial menisectomy (n=49). The operation time, cost, visual analogue score(VAS) of preoperative and postoperative pain, preoperative and postoperative Lysholm function score of the knee joint was compared and analyzed by t test. The clinical treatment effect of the two groups was compared by chi-square test.

The treatment effect of the study group was significantly better than that of the control group (χ²=5.124, P <0.05). There was no significant difference in Lysholm scores between the two groups before surgery (t=1.562, P>0.05). The Lysholm score of the study group was significantly higher than that of the control group three days (t=14.154, P <0.05) and one year (t=15.685, P <0.05) after the surgery. There was no difference in the preoperative pain score of two groups (P> 0.05). The resting pain score (t =13.974, P <0.05) and walk pain score (t=13.976, P <0.05) in three days after surgey of the study group were lower than the control group, and the resting pain score (t=14.258, P <0.05) and walk pain score (t=14.859, P <0.05) one year after surgery of the study group were significantly lower than the control group. The operation time of the control group was shorter than the study group (t=8.568, P <0.05), and the operation cost was lower (t=3.405, P <0.05).

Arthroscopic partial menisectomy for meniscus injury has a good clinical effect, and has the advantages of less trauma and less pain, while modified open meniscectomy is easier in technique and can be used selectively in clinic.