Knee Surg Relat Res.  2019 Jun;31(2):103-112. 10.5792/ksrr.18.068.

Arthroscopic Treatment of Popliteal Cysts with and without Cystectomy: A Systematic Review and Meta-Analysis

Affiliations
  • 1Department of Orthopedic Surgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea. jgkim7437@gmail.com
  • 2Department of Orthopedic Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.
  • 3Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
  • 4Department of Orthopedic Surgery, Veterans Health Service Medical Center, Seoul, Korea.
  • 5Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

Abstract

PURPOSE
To compare the clinical outcomes of the arthroscopic treatments for popliteal cysts with and without cystectomy.
METHODS
PubMed/MEDLINE, EMBASE, KoreaMed, and Cochrane Library were searched from the earliest available date of indexing through August 2016. The methodological quality of all articles was assessed according to the Coleman methodology score (CMS). Studies were grouped according to the surgical method, and a meta-analysis was conducted to identify the unsuccessful clinical outcome and complication rates.
RESULTS
Nine studies were included; the mean CMS was 67.33 (standard deviation, 8.75 points). Cystectomy was reported in five studies; cystectomy was not performed in four studies. The odds ratio of unsuccessful clinical outcomes evaluated by Rauschning and Lindgren score was 122.05 (p<0.001) with cystectomy and 58.12 (p<0.001) without cystectomy. The effect size of complications was 0.16 (p<0.001) with cystectomy and 0.03 (p<0.001) without cystectomy. The recurrence rate was 0% with cystectomy and 6.4% without cystectomy.
CONCLUSIONS
All the currently available studies showed satisfactory outcomes in both with and without cystectomy groups. However, arthroscopic cystectomy concurrently performed with management of intra-articular lesions was associated with a relatively low recurrence rate and a relatively high incidence of complications.

Keyword

Knee; Popliteal cyst; Arthroscopy; Cystectomy; Systematic review; Meta-analysis

MeSH Terms

Abstracting and Indexing as Topic
Arthroscopy
Cystectomy*
Incidence
Knee
Methods
Odds Ratio
Popliteal Cyst*
Recurrence
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