---
title: "Posteromedial Arthroscopic Management of Persistent Baker's Cyst After Total Knee Arthroplasty"
id: "pubmed-42721365"
canonical_url: "https://medichelpline.com/clinical-feed/pubmed-42721365"
content_type: "clinical_feed_article"
specialty: "General"
source_name: "PubMed / NCBI"
source_url: "https://pubmed.ncbi.nlm.nih.gov/42721365/"
doi: "10.2106/JBJS.CC.26.00217"
published_at: "2026-09-10T00:00:00.000Z"
evidence_level: "Journal Article"
license: "CC-BY-NC-4.0 / Informational Use"
---
# Posteromedial Arthroscopic Management of Persistent Baker's Cyst After Total Knee Arthroplasty
## Provenance & Clinical Metadata
- **Canonical URL:** https://medichelpline.com/clinical-feed/pubmed-42721365
- **Specialty:** [General](https://medichelpline.com/clinical-feed/general.md)
- **Primary Source:** PubMed / NCBI
- **Source URL:** [Original Journal Publication](https://pubmed.ncbi.nlm.nih.gov/42721365/)
- **DOI:** [10.2106/JBJS.CC.26.00217](https://doi.org/10.2106%2FJBJS.CC.26.00217)
- **Published At:** 2026-09-10T00:00:00.000Z
- **Evidence Rating:** Journal Article
## Executive GIST (TL;DR)
- A 55-year-old man with advanced knee osteoarthritis underwent **total knee arthroplasty (TKA)**. A small preoperative **Baker's cyst** enlarged after surgery, producing progressive posterior knee swelling and limited flexion. - Conservative measures including aspiration and corticosteroid injection were attempted but did not resolve symptoms. - The treating team performed a **posteromedial arthroscopic decompression** of the popliteal cyst. - At 14-month follow-up the patient was pain-free, had regained full range of motion, and showed no clinical evidence of cyst recurrence. - The authors conclude that **posteromedial arthroscopy** is an effective minimally invasive option for persistent symptomatic Baker's cysts following TKA. - Keywords and focus include Baker's cyst, knee arthroscopy, popliteal cyst, posteromedial arthroscopy, and total knee arthroplasty. - The report is a single case published as a Case Report in JBJS Case Connect; disclosure forms are available online per the journal. Details about operative technique, perioperative care, imaging findings, and exact timelines beyond the 14-month follow-up were not reported in the abstract provided.
## Clinical Analysis & Structured Key Points
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JBJS Case Connect. 2026. Show details Display options Display options Format Abstract PubMed PMID JBJS Case Connect Actions * [ Search in PubMed ](https://pubmed.ncbi.nlm.nih.gov/?term=%22JBJS+Case+Connect%22%5Bjour%5D&sort=date&sort_order=desc) * [ Search in NLM Catalog ](https://www.ncbi.nlm.nih.gov/nlmcatalog?term=%22JBJS+Case+Connect%22%5BTitle+Abbreviation%5D) * [ Add to Search ](https://pubmed.ncbi.nlm.nih.gov/42721365/) . 2026 Sep 10;16(3). doi: 10.2106/JBJS.CC.26.00217. eCollection 2026 Jul 1. ### Authors [Mohammad Ashfaq Konchwalla](https://pubmed.ncbi.nlm.nih.gov/?term=Konchwalla+MA&cauthor_id=42721365)[ 1 ](https://pubmed.ncbi.nlm.nih.gov/42721365/#short-view-affiliation-1 "Department of Orthopaedic Surgery, Medcare Orthopaedics and Spine Hospital, Dubai, United Arab Emirates."), [Mohammad Eskandar](https://pubmed.ncbi.nlm.nih.gov/?term=Eskandar+M&cauthor_id=42721365) ### Affiliation * 1 Department of Orthopaedic Surgery, Medcare Orthopaedics and Spine Hospital, Dubai, United Arab Emirates. * PMID: **42721365** * DOI: [ 10.2106/JBJS.CC.26.00217 ](https://doi.org/10.2106/jbjs.cc.26.00217) Item in Clipboard Cite Display options Display options Format Abstract PubMed PMID ## Abstract **Case:** A 55-year-old man underwent total knee arthroplasty (TKA) for advanced osteoarthritis. A small preoperative Baker's cyst enlarged postoperatively, causing progressive posterior knee swelling and restricted flexion. Conservative treatment, including aspiration and corticosteroid injection, failed. Posteromedial arthroscopic decompression was performed. At 14-month follow-up, the patient was pain-free with full range of motion and no clinical evidence of recurrence. **Conclusion:** Posteromedial arthroscopy is an effective minimally invasive option for persistent symptomatic Baker's cysts following TKA. **Keywords:** Baker's cyst; knee arthroscopy; popliteal cyst; posteromedial arthroscopy; total knee arthroplasty. Copyright © 2026 by The Journal of Bone and Joint Surgery, Incorporated. [PubMed Disclaimer](https://pubmed.ncbi.nlm.nih.gov/disclaimer/) ## Conflict of interest statement Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSCC/C976). ## References 1. 1. Handy JR. Popliteal cysts in adults: a review. Semin Arthritis Rheum. 2001;31(2):108-18. 2. 1. Rupp S, Seil R, Jochum P, Kohn D. Popliteal cysts in adults: prevalence, associated intraarticular lesions, and results after arthroscopic treatment. Am J Sports Med. 2002;30(1):112-5. 3. 1. Sansone V, de Ponti A, Paluello GM, del Maschio A. Popliteal cysts and associated disorders of the knee: critical review with MR imaging. Int Orthop. 1995;19(5):275-9. 4. 1. Ahn JH, Lee SH, Yoo JC, Chang MJ, Park YS. Arthroscopic treatment of popliteal cysts: clinical and magnetic resonance imaging results. Arthroscopy. 2010;26(10):1340-7. 5. 1. Sansone V, De Ponti A. Arthroscopic treatment of popliteal cyst and associated intra-articular knee disorders in adults. Arthroscopy. 1999;15(4):368-72. 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