Solitary Unicameral Bone Cyst Research Articles

Unusually large solitary unicameral bone cyst: case report

A 15-year-old boy presented with complaints of pain and swelling of the right leg. Radiography revealed a large lytic lesion involving the proximal half of the tibia. The patient was taken to surgery, where the cavity was curetted and packed with allogeneic bone graft. Tissue was sent for histopathological evaluation. The patient was kept in an above-knee cast for 4 months, after which partial weight-bearing was allowed. The histopathological diagnosis was a unicameral bone cyst. A radiograph at 1 year showed incorporation of the graft, but a small part of the cavity was still visible and there was a persistent discharge. The patient was again subjected to allogeneic bone grafting in the remaining cavity. At 3.5 years of follow-up now, the patient is walking unsupported, there is no pain, and the radiograph shows complete obliteration of the cavity. Unicameral bone cysts are usually a few centimeters in size. To the best of our knowledge, a unicameral bone cyst of such a large size has never been reported in the literature.

SOLITARY BONE CYST WITH EPIPHYSEAL INVOLVEMENT: CONFIRMATION WITH MAGNETIC RESONANCE IMAGING. A CASE REPORT AND REVIEW OF THE LITERATURE

Documented epiphyseal extension of a solitary unicameral bone cyst in the presence of an open physis is extremely rare3,15. Epiphyseal extension by such cysts has been noted on plain radiographs3, on computed tomography15, and intraoperatively10. We report an unusual case of a skeletally immature child in whom magnetic resonance imaging clearly demonstrated extension of a solitary bone cyst into the proximal humeral epiphysis. The portions of the cyst in the epiphysis and metaphysis communicated through a defect in the physis that was probably due to erosion by the cyst. Progressive limb-shortening developed. The purpose of the current report is to describe the natural history and pathogenesis of physeal involvement by a unicameral bone cyst. A fourteen-year-old boy was seen in the emergency room of the Children's Hospital Medical Center in Cincinnati with a history of a twisting injury of the right arm. He had been managed for a pathological fracture of the humerus on the same side when he was nine years old. Roentgenograms made at that time had revealed a fracture through a unicameral bone cyst (Figs. 1-A and 1-B). He had had no specific problems since that time except that the right arm was noticeably shorter than the left. Figs. 1-A through 1-F: Roentgenograms and magnetic resonance images of a boy who had a unicameral bone cyst. Fig. 1-A: Roentgenogram, made when the patient was nine years old, showing a pathological fracture through a typical unicameral bone cyst in the proximal part of the humerus. The cyst abuts the physis and extends one to five centimeters from it. There is a small area where the cyst wall forms an interface with the physis. The growth plate otherwise appears intact, and the fracture does not extend to the physis. …

Solitary Bone Cyst with Epiphyseal Involvement

GUPTA, ANIL K. M.B., B.S., M.S.(ORTH.)†; CRAWFORD, ALVIN H. M.D.‡, CINCINNATI, OHIO Author Information

Aneurysmal Bone Cyst: the Role of Fibular Graft in its Treatment

Aneurysmal bone cyst is a relatively uncommon benign bone lesion for which curettage and cancellous bone grafting is a widely accepted method of treatment. This paper presents a report of eight patients with aneurysmal bone cysts; four in the humerus, three in the femur and one in the proximal phalanx of the index finger. Seven patients were treated by curettage and cancellous bone graft and one by autogenous fibular graft combined with cancellous allograft. Patients treated by cancellous bone grafting developed recurrence within a year. Three of these recurrent cysts were then treated by autogenous fibular graft combined with allograft. All four patients treated by fibular graft showed satisfactory healing of the cysts with no recurrence at three years' follow-up. Analysis of these patients suggests that recurrence of the aneurysmal bone cyst is very frequent after curettage and cancellous bone grafting. It is recommended that where total excision of the cyst is not feasible, the treatment of choice should be curettage and autogenous fibular bone grafting combined with cancellous bone graft. Removal of the fibula form its middle third does not cause any disability and the fibula regenerates completely within a period of three months.

Traumatic bone cysts of the jaws and their presentation

Two cases of traumatic bone cyst of the mandible are reported exhibiting a considerable variation in their presentation and pathogenesis. This spectrum of behaviour is discussed and comparison made with the solitary unicameral bone cyst.

Solitary unicameral bone cyst

One hundred and forty-four solitary bone cysts were treated by curettage and packing with freeze-dried crushed cortical-bone allograft. One hundred and eight healed primarily. There was a higher rate of recurrence in young patients (less than ten years old), in active cysts, in females, and in incompletely packed cysts. However, of the cysts that were completely packed, 88 per cent healed. These data show that freeze-dried allogeneic crushed cortical bone is superior to similiarly processed cancellous bone and gives results similar to those achieved with fresh autogenous cancellous bone. Orthopaedic surgeons should therefore consider the use of freeze-dried allogeneic crushed cortical bone instead of autogenous grafts to avoid the morbidity and increased risk of complications associated with the procedure to obtain the autogenous bone.

Current concepts on the treatment of solitary unicameral bone cyst.

Neer, Charles S. II M.D.*; Francis, Kenneth C. M.D.**; Johnston, AUSTIN D. M.D.*; Kiernan, Howard A. Jr. M.D.* Author Information

Subtotal resection and grafting in selected cases of solitary unicameral bone cyst : J. J. Fahey and E. T. O'Brien. J. Bone Joint Surg. (Am): 55 A:59–68 (January), 1973

Subtotal resection and grafting in selected cases of solitary unicameral bone cyst : J. J. Fahey and E. T. O'Brien. J. Bone Joint Surg. (Am): 55 A:59–68 (January), 1973

Subtotal Resection and Grafting in Selected Cases of Solitary Unicameral Bone Cyst

The treatment of a patient with a painful massive rotator cuff tear can be challenging. Massive tears exceed 5 cm in length and involve partial or complete tearing of three tendons. The arthroscopic approach provides a minimally invasive technique to evaluate the tear, mobilize and repair tendons, and improve symptoms without disruption of the deltoid. The arthroscopic technique can create a low-tension repair. The reduction of postoperative motion provides the best environment for tendon-to-bone reattachment. Procedures that have reduced rates of adhesion formation allow for this protection with a minimal risk of stiffness. Reduction of the boutonniere effect of superior head migration leads to improved arm elevation. Strength deficits are common and relate to muscle and tendon deterioration that may not be reversible, even with successful closure of the tear. Weakness caused by suprascapular neuropathy may improve after the position and length of the posterosuperior cuff tendons are reestablished. Arthroscopic options include rotator cuff repair, partial cuff repairs, xenografts, decompression, débridement, biceps tenotomy, tenodesis, and use in autografting.

Brisement Forcé With Controlled Collapse in Treatment of Solitary Unicameral Bone Cyst

SOLITARY unicameral cyst is an uncommon disease of bone. When present, however, treatment may be problematical because of both the size and the location of the lesion. Recurrences have been noted after all forms of surgical treatment. Healing has occasionally occurred after fracture although, in the usual case, such an injury does not guarantee that the cyst will consolidate or disappear. Solitary cysts are found adjacent to or in apposition with epiphyses, most often those of the proximal humerous or the proximal femur. Because of the danger of growth arrest when operating in juxta-epiphyseal tissue, as well as the increased incidence of recurrence in cysts in this location, surgery is often difficult and unsuccessful. Where bone grafting is the technique of choice, substantial donor tissue is often required to fill the cyst. When autogenous bone is used, this may entail opening into several body sites to obtain adequate tissue. The

Solitary unicameral bone cyst in a seven-week-old infant.

THE purpose of this report is to place on record a case of proved solitary unicameral bone cyst in an infant seven weeks of age, and to indicate that the origin of such a cyst may be a congenital defect present in the cartilaginous matrix or occurring at the time of ossification of cartilage.In an extensive review of the literature no case report of a solitary unicameral bone cyst at this age could be found. Aside from the early age of this patient, the site and size of the bone cyst permit certain deductions.No attempt to review the . . .

SOLITARY UNICAMERAL BONE CYST

Solitary unicameral bone cyst is properly to be regarded as an independent and distinctive lesion and ought not to be included, as it still rather often is, within the omnibus and unjustifiable category of localized fibrocystic disease of bone. It is a relatively uncommon lesion and manifests itself mainly in childhood and adolescence. Nearly always it develops in the shaft of some one of a few predilected long tubular bones, and, in particular, the upper portion of the humeral shaft accounts for about one half of the localizations. Indeed, throughout this discussion, except when we are referring specifically to other localizations, we will have in mind the cyst as it appears in long bones. Briefly and generally, the lesion can be described as a fairly large fluid-filled unicameral cavity, located in the interior of the affected bone shaft and delimited by a more or less thinned and expanded shaft cortex