We report a case of hemophilic pseudotumor in the ulna of a 6-year-old boy treated with radiation therapy. A total dose of 900 cGy in 6 fractions was given in 6 consecutive days. Progression of cystic changes was halted within a month. New bone formation and trabeculation were found on the 4th month. Complete healing of the lesion and bony replacement were found on the 12th month. The patient was followed up to 72 months and there was no evidence of recurrence and no bone growth disturbance. Radiation therapy can be an effective alternative modality in treating hemophilic pseudotumor.
Bone Cysts/radiotherapy* ; Bone Cysts/pathology ; Bone Cysts/etiology* ; Case Report ; Child ; Hemophilia A/pathology ; Hemophilia A/complications* ; Human ; Male ; Ulna/pathology*

Bone Cysts ; complications ; Cubital Tunnel Syndrome ; etiology ; surgery ; Elbow Joint ; Humans ; Male ; Middle Aged ; Osteoarthritis ; complications

Giant cell tumors are distinctive neoplasms characterized by a profusion of multinucleate giant cells scattered throughout a stroma of mononuclear cells. Most giant cell tumors are found at the epiphyses of long bones, especially around the knee joint. Flat bone involvement is rare. However, a case of giant cell tumor with secondary aneurysmal bone cyst was encountered at the scapula of a 25-year-old man. Since the occurrence of a giant cell tumor with secondary aneurysmal bone cyst on flat bones (i.e., the scapula) is extremely rare, the above-mentioned case is worthy of reporting.
Adult ; Bone Cysts/*etiology/pathology ; Bone Neoplasms/*complications/pathology ; Giant Cell Tumors/*complications/pathology ; Humans ; Male ; Scapula

Adult ; Bone Cysts, Aneurysmal ; complications ; diagnostic imaging ; pathology ; Bone Neoplasms ; etiology ; pathology ; Cell Transformation, Neoplastic ; pathology ; Humans ; Male ; Radiography

OBJECTIVETo investigate the causes and operations for entrapment syndrome of posterior interosseous nerve caused by elbow cyst.

METHODSForm March 2005 to March 2012,5 patients with entrapment syndrome of posterior interosseous nerve caused by elbow cyst were treated with surgical excision and neurolysis including 3 males and 2 females with an average age of 50.4 years old ranging from 35 to 60 years old. The course was from 3 to 10 months with an average of 6.3 months. The main clinical symptoms were pain on the outside of the forearm. The extension muscle power of the metacarpophalangeal joints at the fingers and the wrist had decreased. The EMC showed neurogenic damage or nerve conduction slowing down. According to the functional neurological evaluation standard of British Medical Research Institute ,the motion and sensory function after nerve injury was assessed.

RESULTSPatients were followed up for 3 to 15 months with an average of 8.5 months. Wound healing in patients was good after the operations. There were no significant complications. Three patients were excellent (M4S3+) and 2 patients were good (M3S3). The hand joint function of 5 patients recovered well after operation.

CONCLUSIONThe surgical excision and neurolysis for treatment of entrapment syndrome of posterior interosseous nerve caused by elbow ganglions cyst can remove the entrapment syndrome of the posterior interosseous nerve thoroughly ,promote the neurological function recovery. According to the functional evaluation standard ,operations achieved better therapeutic effect.

Adult ; Bone Cysts ; complications ; Elbow ; innervation ; surgery ; Female ; Fingers ; physiopathology ; Humans ; Male ; Middle Aged ; Nerve Compression Syndromes ; etiology ; physiopathology ; surgery ; Wrist ; physiopathology

Alloplastic implants are known to be inert for many years, though complications are infrequently reported many years after their insertion. We report the case of a patient who had undergone a blow-out fracture repair five years before the discovery of a hematic cyst. He had been free of symptoms for the first five years after his orbital floor repair but then developed pain on eyeball movement and persistent vertical diplopia, which finally led to surgical intervention. At surgery, a hematic cyst was found to have formed around the implanted silastic plate. When alloplastic material is used in orbital fracture repair, we should be alert for late complications which may occur many years after surgery.
Adult ; Biocompatible Materials ; *Blood ; Bone Cysts/diagnosis/*etiology ; Humans ; Male ; Orbital Diseases/diagnosis/*etiology ; Orbital Fractures/diagnosis/*surgery ; Postoperative Complications ; Prostheses and Implants/*adverse effects ; Reoperation ; Silicone Elastomers/*adverse effects ; Tomography, X-Ray Computed

We report the case of a patient with a painful subcutaneous nodule, measuring 13 mm × 17 mm, at the pretibial graft aperture site, which presented two years after a successful anterior cruciate ligament reconstruction with an autologous hamstring graft. A bioabsorbable poly-L-lactide interference screw was used for graft fixation at the tibial aperture. The patient underwent surgical excision of the lesion and curettage at the tunnel aperture. Grossly, extruded fragments of the screw and a thick pseudocapsule of surrounding tissue were excised. There was no communication between the tunnel aperture and the knee joint. The graft was also intact. Histological analysis revealed fragments of the bioabsorbable material in association with fibrous and granulomatous chronic inflammatory cells. This was consistent with a foreign body reaction. The patient subsequently recovered and resumed preinjury level of activity. To the best of our knowledge, this is the first report describing a nodular granulomatous type reaction to foreign bioabsorbable poly-L-lactide screw material subsequent to an anterior cruciate reconstruction surgery.
Absorbable Implants ; adverse effects ; Anterior Cruciate Ligament ; surgery ; Anterior Cruciate Ligament Injuries ; Anterior Cruciate Ligament Reconstruction ; adverse effects ; methods ; Arthralgia ; diagnosis ; etiology ; Bone Cysts ; complications ; diagnosis ; surgery ; Bone Screws ; adverse effects ; Follow-Up Studies ; Humans ; Knee Joint ; Magnetic Resonance Imaging ; Male ; Postoperative Complications ; Reoperation ; Tibia ; Young Adult