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Intradural Schwannoma Associated with Lumbar Spinal Stenosis: A Case Report.

Jae Wan SOH ; Tae Heon KIM ; Sai Won KWON

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):106-110. doi:10.5292/jkbjts.2011.17.2.106

In the patient who has intradural mass associated with spinal stenosis, if the operation for spinal stenosis is performed alone, the symptom may remain. We report with literature review that we achieved the successful outcome after simultaneous decompression of spinal stenosis and space occupying mass removal in the case of intradural and extradural compression. A 71-year-old female patient suffering from low back pain and radiating pain of both lower extremities admitted. In magnetic resonance imaging, spinal stenosis on L4-5 and spondylolisthesis on L5-S1 compressed dural sac and intradural space occupying mass on L4 level compressed. By posterior approach, decompression and interbody fusion were carried out. Then mass was removed with median durotomy. Pathologic diagnosis was schwannoma and the symptom was improved remarkably.
Aged ; Decompression ; Female ; Humans ; Low Back Pain ; Lower Extremity ; Magnetic Resonance Imaging ; Neurilemmoma ; Spinal Stenosis ; Spondylolisthesis ; Stress, Psychological

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Vascular Malformation of Flexor Hallucis Longus Muscle Associated with a Flexion Deformities of Toes: A Case Report.

Jong Chul AHN ; Jung Rae KIM ; Ji Hoon SHIN ; Duk Seop SHIN

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):100-105. doi:10.5292/jkbjts.2011.17.2.100

Vascular malformations may typically present with palpable mass that can be either asymptomatic or can present with symptoms including swelling and pain. On rare occasions, vascular malformation of muscle may produce joint deformities caused by contracture of the involved muscle. When vascular malformation involves the flexor muscle of the leg, ankle equinus deformity may occur. However, there are no reports of toe deformities secondary to intermuscular or intramuscular vascular malformations of flexor muscles of toe. Thus, we report a case of vascular malformation of flexor hallucis longus muscle with flexion contracture of toes in a 40-years-old woman who was treated with surgical excision.
Animals ; Ankle ; Congenital Abnormalities ; Contracture ; Equinus Deformity ; Female ; Humans ; Joints ; Leg ; Muscles ; Toes ; Vascular Malformations

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Double Primary Presentation of Liposarcoma and Ewing's Sarcoma: A Case Report.

Hyeong Won PARK ; Sung Taek JUNG ; Seon Yoon NAH

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):95-99. doi:10.5292/jkbjts.2011.17.2.95

The development of different entities of soft tissue sarcoma in one patient is rare. It usually affects head and neck or abdominal region, whereas those affecting the extremities are much rarer. We describe a patient with double primary presentation of liposarcoma and Ewing's sarcoma in extremity. This case implies that sarcoma patients are at increased risk of a second malignancy, and this implies a need to search for occult tumors during follow up.
Extremities ; Follow-Up Studies ; Head ; Humans ; Liposarcoma ; Neck ; Neoplasms, Second Primary ; Neuroectodermal Tumors, Primitive ; Sarcoma ; Sarcoma, Ewing

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Bizarre Parosteal Osteochondromatous Proliferation in the Proximal Phalanx of the Third Toe: A Case Report.

Haeng Kee NOH ; Ho Seung JEON ; Seung Joo JEON ; Chan Sam MOON ; Seo Goo KANG ; Gyung Sub SONG

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):91-94. doi:10.5292/jkbjts.2011.17.2.91

Bizarre parosteal osteochondromatous proliferation (BPOP) otherwise known as Nora's lesion, is a benign surface tumor of the small tubular bone of the hands and feet with high probability of local recurrence. The report of BPOP in the foot is very rare in our country. We report a case of BPOP of proximal phalanx of right 3rd toe in 44-year-old female, successfully managed by en-bloc marginal excision with a review of the literatures.
Adult ; Female ; Foot ; Hand ; Humans ; Recurrence ; Toes

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Pathologic Fracture Due to an Osteoblastoma of the Humerus Shaft: A Case Report.

Jae Kwang YUM ; Jae Gu PARK ; Min Kyu KIM

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):87-90. doi:10.5292/jkbjts.2011.17.2.87

Osteoblastoma is rare, benign, bone-forming tumor that often occur in the spine. There are few reports of osteoblastomas resulting in pathologic fractures involving long bones. Authos report a unique case of a pathologic fracture due to an osteoblastoma of the humerus shaft. The tumor was treated successfully by curettage, intramedullary nailing and bone allograft.
Curettage ; Fracture Fixation, Intramedullary ; Fractures, Spontaneous ; Humerus ; Osteoblastoma ; Spine ; Transplantation, Homologous

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Outcome of Tumor Prosthetic Reconstruction in Osteosarcoma Patient.

Jae Do KIM ; Cheung Kue KIM ; So Hak CHUNG

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):79-86. doi:10.5292/jkbjts.2011.17.2.79

PURPOSE: Modular tumor prosthesis is the most popular recontructive modality after resection of malignat tumor in extremity. Complications and survival of tumor prosthesis reconstruction are well-known. however, reports on the long-term outcome of tumor prosthesis in osteosarcoma patientss are scarece. MATERIALS AND METHODS: In 158 cases as diagnosed as osteosarcoma from feburary 1989 to December 2006 in a single cancer center. We retrospectively reviewd 48 osteosarcoma patients who under went tumor prosthetic reconstruction. Mean follow up preiod was 75.6 months (range; 60 to 179 months). There were 28 males, 20 females and mean age was 22.4 years (range; 11-71). Pathologic subtypes were conventional central osteosarcoma in 46 cases and periosteal in 2 cases. The location of the tumor was proximal tibia (26 cases), distal femor (20 cases), femor diaphysis (1 case), and tibia diaphysis (1 case). In 41 cases built-up-type tumor prosthesis have been used and 7 cases expansion-type tumor prosthesis have been used. We used Musculoskeletal tumor society (MSTS) grading system to asses post operation function, and we analyzed survival rate of patient and tumor prosthesis and complication. RESULTS: The overall survival rate was 77.7% and disease free survival rate was 68.9%. The survival rate of tumor prosthesis was 73%, in last follow up tumor prosthesis has been removed in 12 cases. All of them, 17 complications occurred, which included infection in 16 cases, Periprosthetic Fracture and Loosening of tumor prosthesis in 4 cases, articular instability in 4 cases. MSTS functional score was 74.1% in post operation. CONCLUSION: In long term follow up result, Primary tumor prosthesis -a reconstruction method after a wide extensional resecion of a bone tumor- can be a effective treatment method in asepect of survival rate, functional assesment and complication.
Diaphyses ; Disease-Free Survival ; Equidae ; Extremities ; Female ; Follow-Up Studies ; Humans ; Limb Salvage ; Male ; Osteosarcoma ; Periprosthetic Fractures ; Prostheses and Implants ; Retrospective Studies ; Survival Rate ; Tibia

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Allogeneic Inlay Cortical Strut Grafts for Large Cysts or Post-curettage Cavitary Bony Defects.

Yang Guk CHUNG ; Yong Koo KANG ; Chol Jin KIM ; An Hi LEE ; Jeong Mi PARK ; Won Jong BAHK ; Hyun Ho YOO

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):73-78. doi:10.5292/jkbjts.2011.17.2.73

PURPOSE: This study was aimed to evaluate the result of inlay cortical strut bone grafts for large cysts or cavitary bone lesions in long bones. MATERIALS AND METHODS: Seven patients with large cyst or cavitary bony lesions were managed with curettage, allogeneic inlay cortical strut and cancellous bone grafts. Additional plate and screw fixations were performed in 6 patients. There were three SBCs, two FDs with secondary ABC changes, one FD and one post-cement spacer removal state. Three of them had pathologic fractures. Progression of bone healing and mechanical support and functional result were evaluated. The mean follow-up period was 25.4 months. RESULTS: Incorporations into host bones were progressed in all, average 4.2 months in six metaphyseal regions and 5.8 months in five diaphyseal regions respectively. Full structural supports were achieved in all except one patient without any additional procedures. No allograft-related complication was developed. Mean functional score according to the MSTS criteria was 29.6 at last follow up. CONCLUSION: Inlay cortical strut graft provided additional mechanical stability and bone stock for screw purchase in large cyst or cavitary defects of long bones, which allow early mobilization and excellent functional outcome.
Bone Cysts ; Curettage ; Early Ambulation ; Follow-Up Studies ; Fractures, Spontaneous ; Humans ; Inlays ; Transplants

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How to Overcome Complications of Allograft Transplantation?.

Yool CHO ; Young CHOI ; Young Ho KWON ; So Hak CHUNG ; Jae Do KIM

The Journal of the Korean Bone and Joint Tumor Society.2011;17(2):65-72. doi:10.5292/jkbjts.2011.17.2.65

PURPOSE: We evaluated the complications of allograft reconstruction after a bone tumor resection, and reviewed literatures to overcome such complications. MATERIALS AND METHODS: We retrospectively reviewed clinical records and radiographs of fifteen patients in whom reconstruction with allograft after bone tumor resection. RESULTS: Eight patients were men and seven were women with a mean age of 27.1 years (1-56 years) and a mean follow-up period of 89.5 months (33-165 months). All postoperative complications related to the allograft were recorded. Twenty patients (80.0%) obtained a radiologic bony union at a mean of 8.35 months (4-12 months). The mean Musculoskeletal Tumor Society score was 73.5% (46.6-93.0%). Nine patients (60.0%) experienced one event and 3 (20.0%) patients experienced multiple events during the follow-up period. Recorded events were infection (3), fracture (2), nonunion (2), limb length discrepancy (2) and varus deformity (2). The mean event free survival period was 60.8 months (6-144 months). The mean allograft survival period was 80.2 months and the 5 year survival rate of the allografts was 83.0%. CONCLUSION: In order to overcome complications, the combination of an allograft and vascularized fibular graft is highly recommended. In the near future, the tissue engineering technique, the application of the stem cell and PRP, could reduce the complication of allograft such as resorption and nonunion.
Congenital Abnormalities ; Disease-Free Survival ; Extremities ; Female ; Follow-Up Studies ; Humans ; Male ; Postoperative Complications ; Retrospective Studies ; Stem Cells ; Survival Rate ; Tissue Engineering ; Transplantation, Homologous ; Transplants

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Parosteal Lipoma of the Femur with Hyperostosis: A Case Report.

Do Yeon KIM ; Ho Seung JEON ; Seung Ju JEON ; Haeng Kee NOH ; Seo Goo KANG ; Ji Ung SONG ; Byeong Moon PARK

The Journal of the Korean Bone and Joint Tumor Society.2012;18(2):104-108. doi:10.5292/jkbjts.2012.18.2.104

Parosteal lipoma is a rare kind of lipoma that occurring adipous tissue around the periosteum. It has been reported most commonly in the femur, the radius, the tibia and the fibular. Treatment consists of resecting the lipomatous tumor with further exeresis of the bone and periosteal excrescence in cases with hyperostosis. The authors report a rare case of parosteal lipoma occurring at the medial portion of the femur shaft with a review of the relevant literatures.
Femur ; Hyperostosis ; Lipoma ; Periosteum ; Radius ; Tibia

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An Atypical Subtrochanteric Femoral Fracture in a Patient with Multiple Myeloma Received Zoledronic Acid: A Case Report.

Won Ju JEONG ; Sang Bong NA ; Hwan Seong CHO ; Joon Woo KIM ; Il Hyung PARK

The Journal of the Korean Bone and Joint Tumor Society.2012;18(2):99-103. doi:10.5292/jkbjts.2012.18.2.99

Little literature exists about the risk of atypical femoral fracture in patients received zoledronic acid for prevention of skeletal metastasis. We report an atypical subtrochanteric femoral fracture in a patient with multiple myeloma received zoledronic acid. The patient was treated by closed reduction and internal fixation with cephalomedullary nailing.
Diphosphonates ; Femoral Fractures ; Humans ; Imidazoles ; Multiple Myeloma ; Nails ; Neoplasm Metastasis

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