Results of a Minimally Invasive Technique for Treatment of Unicameral Bone Cysts

  • Gökçe Mik
  • Alexandre Arkader
  • Alexander Manteghi
  • John P. DormansEmail author
Clinical Research


Unicameral bone cysts are benign bone lesions commonly seen in pediatric patients. Several treatment methods have been described with variable results and high recurrence rates. We previously reported short-term success of a minimally invasive technique that includes combining percutaneous decompression and grafting with medical-grade calcium sulfate pellets. The purpose of this study was to review the additional long-term results with a minimum followup of 24 months (average, 37 months; range, 24–70 months). We identified 55 patients with an average age of 10.8 years (range, 1.3–18 years). Forty-one of 55 lesions occurred in the humerus and femur. Forty-four of 55 (80%) patients had a partial or complete response after initial surgery; of these, seven obtained a partial or complete response after a repeat surgery (cumulative healing rate, 94%). Two patients underwent a third surgery (cumulative healing rate, 98%). One underwent a third repeat surgery (cumulative healing rate, 100%). There were no major complications associated with the procedure. Two patients had a superficial infection that resolved with oral antibiotics. Although some patients required a repeat procedure, complete or partial response at a minimum 24 months’ followup was achieved in all patients.

Level of Evidence: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.


Pathologic Fracture Unicameral Bone Cyst Titanium Elastic Nail Benign Bone Lesion Neer Classification 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© The Association of Bone and Joint Surgeons® 2009

Authors and Affiliations

  • Gökçe Mik
    • 1
  • Alexandre Arkader
    • 3
  • Alexander Manteghi
    • 2
  • John P. Dormans
    • 4
    • 5
    Email author
  1. 1.Department of Orthopaedic SurgeryIstanbul Cerrahi HastanesiIstanbulTurkey
  2. 2.Department of OrthopaedicsThe Children’s Hospital of PhiladelphiaPhiladelphiaUSA
  3. 3.Children’s Orthopaedic Center, Children’s Hospital Los Angeles, and Keck School of MedicineUniversity of Southern CaliforniaLos AngelesUSA
  4. 4.Department of Orthopaedic SurgeryUniversity of Pennsylvania School of MedicinePhiladelphiaUSA
  5. 5.Department of Orthopaedic SurgeryThe Children’s Hospital of PhiladelphiaPhiladelphiaUSA

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