Unicameral bone cysts

Cho, Hwan-Seong; Oh, Joo Han; Kim, Han‐Soo; Kang, Hyun Guy; Lee, S. H.

doi:10.1302/0301-620x.89b2.18116

Cited by 72 publications

(39 citation statements)

References 33 publications

(26 reference statements)

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“…Limitations: Our study population is comparable to other studies regarding age, gender ratio and incidence of pathologic fractures [18,39-41]. Like all retrospective studies, the study has certain limitations, e.g.…”

Section: Discussionsupporting

confidence: 56%

Mid- and long-term clinical results of surgical therapy in unicameral bone cysts

Hagmann

Eichhorn

Moradi

et al. 2011

BMC Musculoskelet Disord

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BackgroundUnicameral (or simple) bone cysts (UBC) are benign tumours most often located in long bones of children and adolescents. Pathological fractures are common, and due to high recurrence rates, these lesions remain a challenge to treat. Numerous surgical procedures have been proposed, but there is no general consensus of the ideal treatment. The aim of this investigation therefore was to study the long-term outcome after surgical treatment in UBC.MethodsA retrospective analysis of 46 patients surgically treated for UBC was performed for short and mid-term outcome. Clinical and radiological outcome parameters were studied according to a modified Neer classification system. Long-term clinical information was retrieved via a questionnaire at a minimum follow-up of 10 years after surgery.ResultsForty-six patients (17 female, 29 male) with a mean age of 10.0 ± 4.8 years and with histopathologically confirmed diagnosis of UBC were included. Pathological fractures were observed in 21 cases (46%). All patients underwent surgery for UBC (35 patients underwent curettage and bone grafting as a primary therapy, 4 curettage alone, 3 received corticoid instillation and 4 decompression by cannulated screws). Overall recurrence rate after the first surgical treatment was 39% (18/46), second (17.4% of all patients) and third recurrence (4.3%) were frequently observed and were addressed by revision surgery. Recurrence was significantly higher in young and in male patients as well as in active cysts. After a mean of 52 months, 40 out of 46 cysts were considered healed. Prognosis was significantly better when recurrence was observed later than 30 months after therapy. After a mean follow-up of 15.5 ± 6.2 years, 40 patients acknowledged clinically excellent results, while five reported mild and casual pain. Only one patient reported a mild limitation of range of motion.ConclusionsOur results suggest satisfactory overall long-term outcome for the surgical treatment of UBC, although short-and mid-term observation show a considerable rate of recurrence independent of the surgical technique.

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Section: Discussionsupporting

confidence: 56%

Mid- and long-term clinical results of surgical therapy in unicameral bone cysts

Hagmann

Eichhorn

Moradi

et al. 2011

BMC Musculoskelet Disord

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show abstract

“…(25) reported 94% success after 2-5 injections at two month intervals. In a study retrospectively comparing steroid injections with bone marrow injections, Cho et al (3) achieved 86.7% success with 1-6 injections over a 4-23 month period. Pavone et al (21) reported 65.2% success after 2-5 injections within a 2-6 month period.…”

Section: Discussionmentioning

confidence: 99%

“…The majority form in the childhood period (4-10 years) and are localized on the metaphysis of the long bones (3) . The most common locations are proximal humerus and proximal femur (4) .…”

Section: Introductionmentioning

confidence: 99%

Triple methylprednisolone injections for simple humerus cysts at one-month intervals

Çakar¹,

Bülbül²

2018

Okmeydani Medical Journal

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“…Although their etiology is unknown, the venous obstruction theory is one of the most accepted models [14,15]. Selected cases, dependent on the location and size of the cyst, may require prophylactic treatment in order to prevent fracture and related complications.…”

Section: Discussionmentioning

confidence: 99%

Pathologic fracture of the distal radius in a 25-year-old patient with a large unicameral bone cyst

Maßen

Baumbach

Volkmer

et al. 2014

BMC Musculoskelet Disord

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BackgroundDistal radius fractures (DRF) are often referred to as osteoporosis indicator fractures as their incidence increases from age 45. In the group of young adults, distal radius fractures normally result from high-energy trauma. Wrist fractures in young patients without adequate trauma thus raise suspicion of a pathologic fracture. In this report we present the case of a fractured unicameral bone cyst (UBC) at the distal radius in a young adult.To the author’s best knowledge, this is the first detailed report in an UBC at the distal radius causing a pathologic DRF in an adult patient.Case presentationA 25-year-old otherwise healthy male presented to our Emergency Department after a simple fall on his right outstretched hand. Extended diagnostics revealed a pathologic, dorsally displaced, intra-articular distal radius fracture secondary to a unicameral bone cyst occupying almost the whole metaphysis of the distal radius. To stabilize the fracture, a combined dorsal and volar approach was used for open reduction and internal fixation. A tissue specimen for histopathological examination was gathered and the lesion was filled with an autologous bone graft harvested from the ipsilateral femur using a reamer-irrigator-aspirator (RIA) system. Following one revision surgery due to an intra-articular step-off, the patient recovered without further complications.ConclusionsPathologic fractures in young patients caused by unicameral bone cysts require extended diagnostics and adequate treatment. A single step surgical treatment is reasonable if fracture and bone cyst are treated appropriately. Arthroscopically assisted fracture repair may be considered in intra-articular fractures or whenever co-pathologies of the carpus are suspected.

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Unicameral bone cysts

Cited by 72 publications

References 33 publications

Mid- and long-term clinical results of surgical therapy in unicameral bone cysts

Mid- and long-term clinical results of surgical therapy in unicameral bone cysts

Triple methylprednisolone injections for simple humerus cysts at one-month intervals

Pathologic fracture of the distal radius in a 25-year-old patient with a large unicameral bone cyst

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