Abstract
Objective
To evaluate cyst remodeling, including complete healing and recurrence, and its relation to the cyst volume in two groups of patients, using curettage and bone grafting or methylprednisolone injection.
Materials and methods
A retrospective analysis was carried out on data from 132 patients with solitary bone cyst, where 79 (59.9%) had undergone curettage and bone grafting and 53 (40.1%) had been administered methylprednisolone injection, with a mean time to follow up of 12 years. The cyst volume was evaluated from conventional radiographs and the method originally reported by Göbel et al. to evaluate the volume of Ewing’s sarcoma. The results were analyzed using the criteria of Neer et al. and Capanna et al.
Results
The mean cyst volume was 36.8 cm3. Recurrence was noted in 16 (20.2%) patients treated with curettage and in nine (17.0%) treated with methylprednisolone. Cyst volume in patients treated with curettage and bone grafting ranged from 8.3 cm3 to 100.0 cm3 and with methylprednisolone from 14.0 cm3 to 50.6 cm3 . In neither group was the cyst volume related to recurrence. Volumes from 1.3 cm3 to 81.9 cm3 were stated for patients treated with curettage and bone grafting, when complete healing was observed; they were significantly lower than for those of the total group of patients who underwent curettage and bone grafting.
Conclusions
1. An association between solitary cyst volume and recurrence in patients treated with either bone curettage and grafting or methylprednisolone was not found. 2. The frequency of complete healing in patients treated with bone curettage and grafting decreased with an increase in the cyst volume.
Similar content being viewed by others
References
Kruls H. Pathological fractures in children due to solitary bone cyst. Reconstr Surg Traumatol. 1979; 17: 113–118.
Cohen J. Unicameral bone cyst. A current synthesis of reported cases. Orthop Clin North Am. 1977; 8: 715–736.
Chigira M, Maehara S, Arita S, Udagawa E. The aetiology and treatment of simple bone cyst. J Bone Joint Surg Br. 1983; 65: 633–637.
Gitelis S, Wilkins R, Conrad E. Benign bone tumours. J Bone Joint Surg Am. 1995; 77: 1756–1781.
Neer C, Francis K, Marcove R, Terz J, Carbonara P. Treatment of unicameral bone cyst. J Bone Joint Surg Am. 1966; 48: 731–774.
Neer Ch, Francis K, Johnston A, Kiernan H. Current concepts on the treatment of solitary unicameral bone cyst. Clin Orthop Relat Res. 1973; 97: 40–52.
Campanacci M, Capanna R, Picci P. Unicameral and aneurysmal bone cyst. Clin Orthop Relat Res. 1986; 204: 25–36.
Capanna R, Dal Monte A, Gitelis S, Campanacci M. The natural history of unicameral bone cyst after steroid injection. Clin Orthop Relat Res. 1982; 166: 204–211.
Kanellopoulos A, Yiannakopoulos C, Soucacos P. Percutaneous reaming of simple bone cyst in children followed by injection of demineralized bone matrix and autologous bone marrow. J Ped Orthop. 2005; 25: 671–675.
Docquier P-L, Delloye C. Treatment of simple bone cysts with aspiration and a single bone marrow injection. J Ped Orthop. 2003; 23: 766–773.
Dormans J, Sankar W, Moroz L, Erol B. Percutaneous intramedullary decompression, curettage, and grafting with medical-grade calcium sulfate pellets for unicameral bone cysts in children. A new minimally invasive technique. J Ped Orthop. 2005; 25: 804–811.
McKay D, Nason S. Treatment of unicameral bone cyst by subtotal resection without grafts. J Bone Joint Surg Am. 1977; 59: 515–519.
Ekkernkamp A, Muhr G, Lies A. Die kontinuierliche dekompression. Unfall Chirurg. 1990; 93: 359–543.
De Sanctis N, Andreacchio A. Elastic stable intramedullary nailing is the best treatment of unicameral bone cyst of the long bones in children. J Ped Orthop. 2006; 26: 520–525.
Scaglietti O, Marchetti PG, Bartolozzi P. The effects of methylprednisolone acetate in the treatment of bone cysts. J Bone Joint Surg Br. 1979; 61: 2000–2004.
Göbel V, Jürgens H, Estpüler G, et al. Prognostic significance of tumour volume in localized Ewing’s sarcoma of bone in children and adolescent. J Cancer Res Clin Oncol. 1987; 113: 187–191.
Scaglietti O, Marchetti PG, Bartolozzi P. Final results obtained in the treatment of bone cyst with methylprednisolone acetate (Depo-Medrol) and a discussion of results achieved in other bone lesions. Clin Orthop Relat Res. 1982; 165: 33–42.
Stanton R, Abdel-Mota’al, Magdy M. Growth arrest resulting from unicameral bone cyst. J Ped Orthop. 1998; 18: 198–201.
Spence, K, Sell K, Brown R. Solitary bone cyst: treatment with freeze-dried cancellous bone allograft. J Bone Joint Surg Am. 1969; 51: 87–96.
Killian J, Wilkinson L, White S, Brassard M. Treatment of unicameral bone cyst with demineralized bone matrix. J Ped Orthop. 1998; 18: 621–624.
Roposch A, Saraph V, Linhart W. Flexible intramedullary nailing for the treatment of unicameral bone cyst in long bones. J Bone Joint Surg Am. 2000; 82: 1447–1454.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Glowacki, M., Ignys-O’Byrne, A., Ignys, I. et al. Evaluation of volume and solitary bone cyst remodeling using conventional radiological examination. Skeletal Radiol 39, 251–259 (2010). https://doi.org/10.1007/s00256-009-0701-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00256-009-0701-2