Popliteal cysts are frequently found during the pre-operative examination of patients with osteoarthritis being prepared for the unicompartmental knee arthroplasty. These symptomatic cysts usually require treatment. To do this, a unicompartmental knee arthroplasty was performed with internal drainage of the popliteal cyst under the same anesthetic.
Unicompartmental knee arthroplasty (UKA) is an established treatment option for anteromedial osteoarthritis, and popliteal cysts are a common finding in the knee among patients with chronic osteoarthritis pain. The two are so closely related that popliteal cysts are commonly discovered during the unicompartmental knee arthroplasty preoperative examination. However, only a few reports exist on the management and outcome of popliteal cysts in the patients receiving UKA for knee osteoarthritis (OA) and popliteal cysts. As such, it is crucial to evaluate different treatment strategies and their management of popliteal cysts. In this paper, we evaluate a surgical strategy for patients with knee anteromedial osteoarthritis and symptomatic popliteal cysts. These patients were treated with UKA and internal drainage of the popliteal cyst. The results shown here, spanning 1-year post-operation follow-up, demonstrated that UKA and internal drainage is an effective surgical protocol for treating anteromedial osteoarthritis with symptomatic popliteal cysts.
A popliteal cyst is a mass located in the popliteal area, filled with fluid, which is prevalent in locations of intra-articular lesions of the knee1. Multiple reports suggest a strong correlation between popliteal cysts and knee osteoarthritis (OA)2,3. As a result, ~20%-42% of patients with knee OA also experience popliteal cysts1,3,4,5,6,7,8. Most of the cysts are rarely symptomatic and do not generally require therapy, while the symptomatic cysts warrant surgical resection9.
Unicompartmental knee arthroplasty (UKA) is widely used in the treatment of anteromedial knee OA10,11. Popliteal cysts are commonly discovered during the UKA preoperative examination. However, only a few reports exist on the management and outcome of popliteal cysts in patients that received UKA for knee OA and popliteal cysts. This article describes a protocol on how to treat popliteal cysts together with UKA.
A popliteal cyst, otherwise known as a Baker's cyst, is the knee joint disorder that is prevalent among the middle-aged and older population16,17. The incidence of popliteal cysts, in combination with symptomatic knee joint disease, is between 9.2% to 38%, depending on the location and the analysis18,19,20. Approximately 20%-42% of the patients with knee OA also have…
The authors have nothing to disclose.
This research was supported by a grant from the Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province (grant number: 20210008).
Excel | Microsoft | digital table software | |
Magnetic resonance inspection (MRI) | General Electric Company | Imaging examination of popliteal cyst before and after surgery. | |
Oxford® Partial Knee surgery system | ZIMMER BIOMET | NONE | For the catalog numbers refer to Oxford Partial Knee Microplasty Instrumentation (femoral component, tibial component, meniscus bearing) |
ultrasound | General Electric Company | we used ultrasound to observe changes in the postoperative cysts |
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