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Long-term follow-up of conservatively treated popliteal cysts in children
L W Van Rhijn1, E J Jansen, H E Pruijs
1Department of Orthopaedic Surgery, University Hospital Maastricht, The Netherlands.
Insights
Conservative treatment of pediatric popliteal cysts shows good long-term outcomes. Many asymptomatic knee cysts in children resolve or shrink without surgery, indicating a favorable prognosis with watchful waiting.
Area of Science:
- Pediatric Orthopedics
- Musculoskeletal Imaging
Background:
- Popliteal cysts are common in children.
- Their natural history and optimal management remain subjects of investigation.
Purpose of the Study:
- To evaluate the long-term outcomes of non-surgically managed popliteal cysts in pediatric patients.
- To assess the efficacy of conservative treatment for these cysts.
Main Methods:
- Retrospective review of 20 popliteal cysts in children (1986-1992).
- Inclusion of patients with isolated knee abnormalities.
- Clinical and ultrasound assessment with 5-10 year follow-up.
Main Results:
- 18 patients with 20 cysts were analyzed after 3 lost to follow-up.
- 14 cysts managed conservatively showed 8 disappearances and 6 shrinkages over a mean 7-year follow-up.
- 6 cysts were surgically treated after a mean 2-year conservative management period.
Conclusions:
- Asymptomatic pediatric popliteal cysts can be effectively managed conservatively.
- Conservative treatment yields favorable outcomes, including spontaneous resolution or shrinkage.
- Surgical intervention may be considered if conservative measures fail or symptoms persist.
Abstract:
This study was undertaken to determine the long-term outcome of conservatively treated popliteal cysts in children. It was based on a review of 20 cysts, none of which were initially treated surgically. The records of children with popliteal cysts between 1986 and 1992 were studied, and a group of patients without other diseases or other physical abnormality in the knee region was selected. Twenty-one patients were included and were subjected to a clinical and ultrasound investigation. Three were lost to follow-up, leaving 18 patients with 20 cysts available for analysis. In the follow-up period, which ranged from 5 to 10 years, 14 cysts were treated conservatively with a mean follow-up of 7 years, whereas 6 cysts were operated on after a mean period of 2 years. Of the conservatively treated cysts, eight had disappeared and six had shrunk. Although spontaneous remission is not to be expected in all cases, asymptomatic popliteal cysts in children can be treated conservatively with good results.