Unicameral Bone Cysts

Pretell-Mazzini, Juan; Murphy, Robert F.; Kushare, Indranil; Dormans, John P.

doi:10.5435/jaaos-22-05-295

Cited by 57 publications

(38 citation statements)

References 36 publications

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“…85% of UBCs occur almost exclusively in children and adolescents. The reported peak is between the ages of 3 and 14 years with the mean age at diagnosis being approximately 9 years [ [1] , [2] , [3] , [4] ] UBCs represent about 3% of all biopsied bone tumors and occur twice as more in boys as compared to girls [ 4 ].…”

Section: Epidemiologymentioning

confidence: 99%

See 1 more Smart Citation

Unicameral bone cysts: Current concepts

Noordin

Allana

Umer

et al. 2018

Annals of Medicine and Surgery

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Unicameral bone cysts (UBC) or simple/solitary bone cysts are benign fluid filled cavities that enlarge over time, resulting in thinning of the bone. Usually these cysts are reported in the metaphyseal areas of long bones with open physes. 85% of UBCs occur almost exclusively in children and adolescents. UBCs are more aggressive in the first decade of life and correspondingly the recurrence rate for these patients is four times that for adolescents. The proximal humerus and femur account for almost 90% of these cases. UBCs are classified as active when they are within 1 cm of the physis and latent as they progress to a diaphyseal location. Differential diagnoses for UBC include aneurysmal bone cyst, fibrous dysplasia, enchondroma, and intraosseous ganglia. By the time of skeletal maturity most UBCs tend to resolve. Nonoperative treatment may be a viable option for many patients with small or symptomatic lesions. Interventions include steroid injection, open curettage and bone grafting, decompression and percutaneous injection of marrow or graft substitutes.

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Section: Epidemiologymentioning

confidence: 99%

“…The bubble gas sign, a pathognomic features to suggests presence of pathological fracture also known as “rising Bubble sign” is also seen on CT. CT also provides road Map for intervention. [ 2 , 7 ].…”

Section: Ctmentioning

confidence: 99%

Unicameral bone cysts: Current concepts

Noordin

Allana

Umer

et al. 2018

Annals of Medicine and Surgery

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“…В современной отечественной литературе есть указания на вероятность развития литических осложнений в мягких тканях, при инъекциях ГКС, однако публикаций, описывающих данные специ фические локальные изменения в костной ткани плечевой кости, нами найдено не было. В зарубежной и отечественной литературе встречаются описания схожих патологических состояний, локализованных в проксимальном отделе плечевой кости: солитарные костные кисты [14,15,16,17,18,19,20,21,22], перегрузочные кисты большого бугорка при повреждениях вращательной манжеты и омартрозах [14,23,24,25], энхондромы [21,26,27,28,29,30,31], хондробластомы проксимального отдела плечевой кости [27,28,29,32,33], хондромиксоидные фибромы [18,21,34,35,36,37], аневризмальные костные кисты (АКК) проксимального отдела плечевой кости [27,28,29,38], гигантоклеточная опухоль (ГКО) [27,28,29,39,40]. Вышеперечисленные доброкачественные опухоли и опухолеподобные состояния, за исключением АКК и ГКО, имеют сходную рентгенологическую картину.…”

Section: Discussionunclassified

Bone Cyst of Proximal Humerus after Local Betamethasone Injection (Case Report)

Коган¹,

Kurbanov²,

Lasunsky³

et al. 2020

Traumatology and Orthopedics of Russia

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A potent anti-inflammatory effect and wide application of corticosteroids were the origin of their extensive use for treatment of diseases and injuries of the shoulder joint. The authors describe a clinical case of tumor-like cyst in the proximal humerus after intra-articular injection of glucocorticosteroid (GCS) in a 43 year old woman. Current medical literature reports various complications following GCS injections but the authors found no other cases of tumor-like cyst in proximal humerus associated with intra-articular GCS injection. This can be an underestimated phenomenon or a unique case. In any case, all physicians performing treatment and diagnostics medication blockades of the large joints should be aware of this occurrence. The authors assume that such complication can be prevented by clear understanding of shoulder joint anatomy and current visualization techniques such as ultrasound navigation.

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“…General treatment options reported in the literature include curettage in combination with autologous or allogenic grafting, the use of bone substitutes, autologous bone marrow injection, and numerous methods of cyst decompression including the use of cannulated screws or a cannulated hydroxyapatite pin [39–43]. The lack of a clear pathoetiology has impeded the development of a standard of care for solitary bone cysts amidst the numerous treatment strategies reported [1, 16, 40, 44]. With supporting evidence for a “trauma-hemorrhage” theory underlying SBC formation in the adult bone, surgical strategies, whenever necessary [1], may possibly be “downstaged” to minimally invasive ones, like prophylactic closed intramedullary nailing or bridge plating techniques for the diaphyseal lesion in a long bone or percutaneous reconstruction with grafts or bone substitutes as reported by some authors [42, 44, 45].…”

Section: Discussionmentioning

confidence: 99%

“…The latter are an entity separate from the unconventionally described pseudocyst forming in periprosthetic tissues or following a fracture or minor trauma [14], which histologically resembles a synovial cyst with synovium-like lining with or without a single-layered epithelium [15]. The enigma answers why different methods of treatment have been reported to resolve the disease, all of which remain controversial [1, 16]. …”

Section: Introductionmentioning

confidence: 99%

An unusual case of proximal humeral simple bone cyst in an adult from secondary cystic change

et al. 2017

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Background: Simple bone cysts (SBC) have been documented to occur in adults with closed physeal plates, most commonly affecting the calcaneus in this patient subset. Although most authors theorize an association to trauma, etiology of simple bone cysts remains an enigma up to now. Case presentation: A 26-year-old kickboxing coach sought consult for a painful right shoulder which on radiographs and magnetic resonance (MR) imaging showed a proximal humeral lesion with signs of ossification. The patient was lost to follow-up but again sought consult after 3 years for the recurring complaint. On repeat radiographs, computed tomography (CT) scan, and MR images, tumor enlargement with cystic findings typical of simple bone cyst were documented. Diagnostic aspiration of the lesion was firstly done, revealing straw-colored fluid. The patient then underwent intralesional curettage with alpha-tricalcium phosphate cement reconstruction of the lytic defect. No perioperative complications were incurred, and on latest follow-up at 3 years postoperatively, Musculoskeletal Tumor Society (MSTS) and visual analog scale (VAS) pain scores were 30/30 and 0/10, respectively. Conclusions: The authors believe their report provides support to a possible association to trauma of simple bone cysts occurring in the adult population with closed physes and suggest this subset of patients may require a different treatment approach from that for juvenile simple bone cysts.

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Unicameral Bone Cysts

Cited by 57 publications

References 36 publications

Unicameral bone cysts: Current concepts

Unicameral bone cysts: Current concepts

Bone Cyst of Proximal Humerus after Local Betamethasone Injection (Case Report)

An unusual case of proximal humeral simple bone cyst in an adult from secondary cystic change

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