• The Journal of the Korean bone and joint tumor society
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• v.16 no.1
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• pp.1-7
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• 2010

Purpose: With advances in various treatment modalities, limb salvage surgery has been commonly used in osteosarcoma of extremities. An alternative method for skeletal reconstruction is reimplantation of the tumor bearing bone following extracorporeal irradiation (ECI). We report the long-term results of ECI autograft in aspect of the oncological and functional outcomes, and complications. Materials and Methods: We retrospectively reviewed 31 osteosarcoma patients who underwent reconstruction with ECI between July 1995 and January 2006. There were 24 males and 7 females with a mean age of 24 (7-74 years) and a mean follow-up of 117 months (17-177 months). Twenty-five cases were reconstructed with ECI autograft, 6 cases with ECI autograft-prosthesis composite. The pathologic subtypes were conventional in 29 cases, periosteal in 1 case, and parosteal in 1 case. The most common location of tumor was distal femur (15 cases) followed by humerus (3), proximal fibula (3) and proximal tibia (3). Musculoskeletal Tumor Society (MSTS) score was used for functional evaluation. The overall survival rate, local recurrence, complications were analyzed. Results: The overall survival rate was 80.6% and the disease-free survival rate was 64.5%. Five patients died of distant metastasis. One patient required above-knee amputation due to local recurrence. All of them, twenty-three complications occurred, which included nonunion in 7 cases, deep infection in 5 cases, joint instability in 4 cases, metal failure in 2 cases, Limb-length discrepancy (LLD) in 2 cases, periprosthetic fracture in 1 case, epiphyseal collapse in 1, local recurrence in 1 case. The mean MSTS functional score was 62.5%. Conclusion: Extracorporeal irradiated autograft can be achieved relatively good result in aspect of oncological and functional aspect, but is needed to be additional research about occurring many complications. The reconstruction with ECI after intercalary or fragmentary resection is effective reconstruction in aspect of oncological and functional result, complications.

• The Journal of the Korean bone and joint tumor society
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• v.6 no.1
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• pp.10-16
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• 2000

Object : The aim of the current study is to assess the results of segmental resection and replantation for primary malignant or aggressive tumors of the upper limb. Materials and Methods : From 1986 to 1994, ten patients who had primary malignant or aggressive tumors of the upper limb were managed with segmental resection and replantation method. The average duration of follow-up was 7 years and 7 months. Primary indication of this method is stage II B tumors which, because of their extend, could otherwise be adequately treated only by amputation. Three patients had chondrosarcoma, two had osteosarcoma, two had giant cell tumors with pathologic fracture, one had extensive chondroblastoma, one had Ewings sarcoma, and one had leiomyosarcoma. The location of the tumor was humerus in 6 patients, scapula in 3 patients, and soft tissue of forearm in 1 patient. Wide resection margins were achieved in 7 patients and marginal margin in three. Results : One patient died on 40 months after surgery due to systemic metastasis. Nine patients have remained disease free without local recurrence or metastasis. The average overall functional rating was 65% (43~90%) for ten patients on the last follow-up by the functional rating system of Enneking. The mean grasping power and pinching power of operative hand was 75%(28~95%) and 65%(43~90%) of the opposite hand, respectively. Complications associated with this surgical method included three wound dehiscences and one nerve injury that resolved with proper wound care and time. Conclusion : It was concluded that segmental resection and replantation might be used for partial limb salvage in selected cases for the treatment of primary malignant or aggressive tumors of the upper limb.

• Clinics in Shoulder and Elbow
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• v.9 no.2
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• pp.169-175
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• 2006

Purpose: The purpose of this study was to evaluate the usefullness of polarus nailing in the treatment of proximal humerus fractures including 2 part, 3 part and proximal comminuted fractures. Materials and methods: Fifteen cases of proximal humerus fracture treated with Polarus nailing from March, 2002 to March, 2004 were selected. Man was 3 cases, and woman was 11 cases. There were one case of follow up loss due to decease. Average age was 60 years old (range, 23 to 84), and there were 6 cases of 2 part fracture, 3 cases of proximal segmental fracture, 5 cases of 3 part fracture. We analyzed the outcom results between 2 part fracture and 3 part fracture. The average follow up period after the operation was 1.5(range, 1 to 2) years. Range of motion (ROM), pain and functional outcome were evaluated by visual analogue scale(VAS) and american shoulder and elbow surgery (ASES) activity of daily living (ADL) functional scoring system. Results: All cases showed union on radiologic evaluation, with 2.3 months follow up. In 5 cases of 3 part fracture, average union time was 1.9 months regardless of proximal screw loosening in 4 cases. In 2 part fracture union time was 2.2 months (P>0.05). VAS pain score was 1.3, ROM was $160^{\circ}$ in forward flexion, $40^{\circ}$ in external rotation, L3 level in internal rotation, and ASES, ADL functional score was 21 in 2 part fracture. VAS pain score was 1.25, ROM was $160^{\circ}$, $43^{\circ}$ and L1 level, and ASES, ADL functional score was 21 in 3 part fracture. There were no statistically significant difference between two groups (P>0.05) VAS pain score was 1.6, ROM was $170^{\circ}$, $47^{\circ}$ and L3 level, and ASES, ADL functional score was 23 in proximal comminuted fracture. Conclusion: Polarus nailing could be used as an effective modality in certain cases of proximal humeral fracture including 2 part, proximal segmental and in cases of 3 part fractures with large greater tuberosity fragment.