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PubMed2004

Aneurysmal bone cyst and giant cell tumor of bone of the hand and distal radius.

Aneurysmal bone cyst and giant cell tumor of bone have historically been considered benign lesions that can behave in locally aggressive fashion. The clinical and pathologic findings share some common characteristics. When considering a radiographic differential diagnosis, these entities are usually considered together. There are some very distinct differences in potential aggressiveness and in response to treatment. This report summarizes current knowledge regarding these lesions when they occur in the hand and outlines current treatment methods.

Bone Cysts, Aneurysmal↗
PubMed1986

Regression of aneurysmal bone cyst following open biopsy.

Aneurysmal bone cysts are well described but relatively rare bone lesions. Histological diagnosis is usually obtained before definitive treatment. We report a patient with aneurysmal bone cyst regression after excisional biopsy and prior to preoperative embolization. This was also a patient with the William syndrome. This has not previously been reported, nor is there any known association between aneurysmal bone cyst and the William syndrome.

Adult↗
PubMed1992

Treatment of a mandibular bone cyst by use of a corticocancellous bone graft in a horse.

A 1-year-old Appaloosa stallion had a mass on the right rostral hemimandible. The mass was firm, did not cause signs of pain, and was identified as a bone cyst by radiography and biopsy. Surgical correction included curettage of the cystic cavity and grafting the defect with both cortical and cancellous bone. By 5 months, the cystic cavity was ossifying; continued remodeling with an increase in bone density was apparent 22 months after surgery.

Animals↗
PubMed2005

Your diagnosis? Aneurysmal bone cyst.

The etiology of aneurysmal bone cysts is uncertain, but they may originate as a localized arteriovenous malformation. These benign lesions can be primary or occur secondary to an underlying lesion. The majority of patients who present with aneurysmal bone cysts are younger than age 20 years. One half of lesions occur within the long bones and one third involve the spine. Most flat bone lesions, approximately 10%, occur in the pelvis. Fluid-fluid levels are common on CT and MRI but are not pathognomonic. Although aneurysmal bone cyst is benign, there may be aggressive clinical and imaging features. Treatment for aneurysmal bone cyst is surgical curettage, intraoperative adjuvant therapy, and bone grafting of the lesion. The prognosis following treatment is very good, although 10% to 20% of cases are reported to recur.

Bone Cysts, Aneurysmal↗
PubMedDate not supplied

Treatment of simple bone cysts with aspiration and a single bone marrow injection.

The authors report the results of percutaneous aspiration and injection of marrow into active, simple bone cyst in 17 cases. Slow regression of the cyst and progressive healing were obtained in 13 cases (76%), no response was observed in 2 cases (12%), and recurrence was observed in 2 others (12%) after a follow-up of 33.9 months. Cyst evolution was monitored by a cyst index, cyst diameter, and computer-assisted densitometric image analysis of serial radiographs.

Adolescent↗
PubMed2005

Prevalence of aneurysmal and solitary bone cysts in young patients.

Aneurysmal and solitary bone cysts develop most commonly during skeletal growth. The objective of our epidemiologic study was to evaluate the prevalence, recurrence rate, and probability of recurrence-free survival for aneurysmal and solitary bone cysts in young patients. We did a population-based analysis of 141 histologically confirmed cases. Seventy-three patients with aneurysmal bone cysts and 68 patients with solitary bone cysts were registered. The annual prevalence was 0.32 per 100,000 individuals (range, 0-1.238) for aneurysmal cysts, with a 1.8:1 male to female ratio and a median age of the patients of 11.1 years (range, 1-19.7 years). For solitary bone cysts, the calculated annual prevalence was 0.30 (range, 0-0.963) with a median age of the patients of 1.1 years (range, 0.5-19.9) and a 1.96:1 male to female ratio. Recurrent lesions occurred frequently in young males. Secondary aneurysmal bone cysts were observed only in females. During skeletal growth, aneurysmal and juvenile bone cysts more often occur in males with a peak prevalence at approximately 11 years of age. A greater prevalence of aneurysmal bone cysts in young individuals is associated with skeletal growth and immaturity. Young age and male gender are associated with an increased risk of local recurrence.

Adolescent↗
PubMed1992

Calcitonin therapy of aneurysmal bone cysts.

Seven aneurysmal bone cysts (ABC) were treated with the hormone calcitonin. Six of the cysts, which were hypovascular responded well to the calcitonin administered directly into the cyst. Ossification and rebuilding of the ABC occurred after some months in every case. One hypervascularized ABC, however, failed to respond either to embolo-therapy or to the calcitonin hormone treatment. The authors recommend calcitonin administration as a useful non-invasive method for the treatment of hypovascular ABC.

Adolescent↗
PubMed1993

Simple bone cyst. Treatment by trepanation and studies on bone resorptive factors in cyst fluid with a theory of its pathogenesis.

Simple bone cysts were treated by trepanation. The technique consists of drainage of cyst fluid, lavage of the cystic cavity with saline, and the making of multiple drilling holes through the cortical and the medullary bone of the cyst wall. Injection of corticosteroid was omitted. In 11 cases treated by this method, the clinical outcome was good. Biochemical analyses of the cyst fluid showed bone-resorptive factors, i.e., prostaglandins, interleukin 1, proteolytic enzymes. Electrophoretic analysis of proteolytic enzymes in polyacrylamide gel containing sodium dodecyl sulfate and polymerized gelatin showed proteins with molecular weights of about 130,000, 92,000, 72,000, and lower than 50,000. Increase in such bone-resorbing activities seems to be one of the causative factors in simple bone cysts. The technique was effective in decompressing the internal pressure of the cysts, improving the blood flow through the medullary bone of the cyst wall, stimulating the periosteum to induce bone formation, and eliminating bone destruction.

Adolescent↗
PubMedDate not supplied

Growth arrest resulting from unicameral bone cyst.

Growth arrest complicating unicameral bone cyst of the proximal humerus is reported in five patients. These patients represented 10% of 51 consecutive patients treated by the senior author at our hospital from 1988 through 1995. The youngest patient at first clinical presentation was aged 6 years, and the oldest was 14 years 9 months. The follow-up ranged from 35 to 69 months (average, 57.2). The youngest patient at final follow-up was 9 years 1 month, and the oldest was 20 years 5 months. Pathologic fracture was the common clinical presentation in all patients. Growth arrest was diagnosed by limb-length discrepancies, as well as radiographic evidence of premature closure of the physis and deformity of the upper humerus. Treatment was either aspiration of the cyst and local injection of corticosteroids or curettage and bone grafting. Growth arrest was documented, both clinically and radiographically, before the surgery in the two cases treated by curettage and grafting. The origin of growth arrest resulting from unicameral bone cyst remains uncertain. Direct iatrogenic damage to the physis was not a likely cause of growth arrest in this series. Growth arrest as a complication of unicameral bone cyst of the proximal humerus is more common than is generally appreciated (10%).

Adolescent↗
PubMed2006

Current treatments of primary aneurysmal bone cysts.

The management of aneurysmal bone cyst depends on the age of the patient, the location, extent, aggressiveness and the size of the lesion. In the light of their experience and a review of the literature of 1256 aneurysmal bone cysts, the authors analyzed various treatment modalities. Inactive lesions can heal with biopsy or curettage alone. In active or aggressive lesions, elective treatment usually consists of curettage, whether associated or not with bone grafting and local adjuvants. Aneurysmal bone cyst in young children do not seem more aggressive than in older children. In pelvic locations, the emergence of a few cases of spontaneous healing (even in active or aggressive lesions) encourages the adoption of clinical and radiological supervision for some months after biopsy when possible. In some cases, the localization and extent of the cyst are such that operative treatment is extremely hazardous. Selective arterial embolization has made a considerable contribution towards the therapeutic solution of such cases. For some authors, direct percutaneous Ethibloc injection can be recommended as the first-choice treatment except in spinal lesions. Nevertheless, the complications encountered in some series after percutaneous embolization of aneurysmal bone cyst with Ethibloc should encourage the use of Ethibloc injection not as an initial treatment but as a reliable alternative to surgery.

Arteries↗
PubMed2005

Arthroscopic repair of rotator cuff tears associated with large bone cysts of the proximal humerus: compaction bone grafting technique.

Large bone cysts associated with symptomatic rotator cuff tears may pose significant treatment problems. Bone loss associated with these cysts or with implant removal in cases of revision rotator cuff surgery may be so large that secure suture anchor fixation cannot be achieved with traditional techniques. This report describes how to arthroscopically bone graft these defects with a compaction technique that creates a densely packed bone bed into which suture anchors can be securely placed.

Arthroscopy↗
PubMed1999

Treatment of a simple bone cyst of the calcaneus by endoscopic curettage with cancellous bone injection.

The authors report a case of simple bone cyst involving the calcaneus, treated by curettage under endoscopy with cancellous bone injection, and its course and follow-up at two years. This new technique has not yet been published for simple bone cysts of the calcaneus. Endoscopic curettage of the cavity of a simple bone cyst can be advocated for the calcaneus to minimize incisions and to avoid cutaneous complications.

Adolescent↗
PubMed1977

[Selection of procedure in the management of recurrent juvenile and aneurismatic bone cysts].

Aneurysmal and juvenile bone cysts are characterized by frequent recurrence and pathological fractures caused by such bone cysts also recur frequently. Curettage of the cyst and spongiosaplasty is often unsuccessful. According to our experience, excochleation must be followed by drilling the cyst wall and fraising off the compact substance. Densely packed homologous spongiosa must then be implanted. In case of recurrence or if the cyst increases in size, radical en-bloc resection is indicated and the defect must be bridged by osteoplastic and osteosynthetic methods. We have treated four difficult cases successfully with this procedure. In one case, resection with limb shortening lead to full recovery.

Age Factors↗
PubMed1995

The treatment of aneurysmal bone cyst.

Forty-four patients with aneurysmal bone cysts were treated with curettage with or without bone grafting, and in 26 (59%) recurrence developed. Of 11 patients treated with radiation, in only 1 (9%) the disease was not controlled. In 1 patient, radiation-induced sarcoma developed. Since the introduction of cryosurgery 27 years ago, 51 patients have been treated with cryosurgery. The patients had an average age of 13 years (range, 2-32 years). Thirty-four primary aneurysmal bone cysts and 17 secondary aneurysmal bone cysts occurred in association with 7 giant-cell tumors, 5 chondroblastomas, 2 fibromyxomas, 2 nonossifying fibromas, and 1 unicameral bone cyst. The tumors were classified as inactive in 9 patients, active in 31, and aggressive in 11. Treatment consisted of local intralesional excision followed by application of liquid nitrogen. The defect was either allowed to heal spontaneously (n = 26) or was reconstructed using an intramedullary rod (n = 2), bone grafts (n = 5), fibular strut grafts (n = 14), or polymethylmethacrylate with Steinmann pins (n = 4). At median followup of 85 months (range, 24-311 months), the overall cure rate was 82%. This was increased to 96% after a second, or repeat, cryosurgery. The disease in all patients eventually was controlled by cryosurgery. The mean functional rating was 90% (range, 63%-100%). Intralesional excision with adjunctive cryosurgery is an effective method for the treatment of aneurysmal bone cyst.

Adolescent↗