Surgical treatment of popliteal cyst: a systematic review and meta-analysis

Xiao-nan Zhou, Bin Li, Jia-shi Wang, Lun-hao Bai, Xiao-nan Zhou, Bin Li, Jia-shi Wang, Lun-hao Bai

Abstract

Background: This systematic review and meta-analysis of the clinical efficacy of different surgical methods in the therapy of popliteal cysts may provide evidence about effective surgical treatments.

Methods: PubMed, EMBASE, and OVID were searched with the following terms: (popliteal cyst* OR baker's cyst*) AND (arthroscopic OR excision OR operative OR treat* OR surgery). Inclusion criteria included the following: studies reported the efficacy of different surgical methods in popliteal cyst patients; patients were ≥ 16 years; and studies must have involved a minimum of 10 patients. Studies were grouped according to the surgical methods, and a meta-analysis was employed to identify the success rate based on the pooled data.

Results: A total of 11 studies were included: The communication between the cyst and the articular cavity was enlarged in 7 studies; this communication was closed in 3 studies; and only intra-articular lesions were managed in 1 study. After the data were pooled, the success rates were 96.7 and 84.6 % in the communication-enlargement group and communication-closure group, respectively. Studies with communication enlargement were subgrouped into the cyst wall resection group and the non-cyst wall resection group, for which the success rates were 98.2 and 94.7 %, respectively.

Conclusions: Based on the current available evidence, at present, any how arthroscopic excision of the cyst wall, arthroscopic management of intra-articular lesions, and enlarging the communication between the cyst and the articular cavity is an ideal strategy for the popliteal cyst. The current literature on the treatment of popliteal cysts is limited to retrospective case series. Future prospective studies with high-quality methodology and uniform scoring system are required to directly compare communication-enlargement surgery and communication-closure surgery and determine the optimal treatment of popliteal cysts. Cyst wall resection may improve the therapeutic efficacy, to draw definitive conclusions, and high-level clinical researches with a large number of patients and long-term follow-up should be initiated.

Figures

Fig. 1
Fig. 1
Flow diagram for the selection of publications for systematic review
Fig. 2
Fig. 2
Forest plot of the success rate in the communication-enlargement surgery group
Fig. 3
Fig. 3
Forest plot of the success rate in the communication-closure surgery group
Fig. 4
Fig. 4
Forest plot of the success rate in the cyst wall resection group
Fig. 5
Fig. 5
Forest plot of the success rate in the non-cyst wall resection group

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Source: PubMed

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