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This systematic review summarizes evidence on allotransplantation of donor kidneys after resection of a small renal cancer or contralateral healthy kidneys from cadaveric donors with unilateral renal cancer. Eligible studies were identified by screening four bibliographic databases, contacting key authors, and analyzing the bibliographies of included studies. Two reviewers independently assessed the reports for inclusion and extracted data, which were summarized as a narrative review. In the 20 case report or case series studies included in the analysis, there were 97 documented cases of donor kidney transplantation after resection of small renal cancer without pathologically confirmed recurrence, whereas 22 cases used contralateral healthy kidneys from cadaveric donors with unilateral renal cancer with one case of cancer recurrence. These results suggest that the use of donor kidneys after resection of small renal cancer is associated with a relatively low cancer recurrence rate. [ABSTRACT FROM AUTHOR]

The worry of potential residual renal cancer cells in donor kidney after resection of small renal cancer impedes the extensive use of such controversial donor source. To explore the impacts of organ preservation process on the survival of renal cancer cells, we detected cell proliferation and viability of benign and malignant renal cell lines and clinical renal samples after treated with simulated organ preservation process. It was found that the viability and proliferation of malignant renal cells are inhibited much more than that of benign renal cells during prolonged organ preservation. The inhibition of proliferation in benign renal cells is fully reversible, while in malignant renal cancer cells is not fully reversible after a certain time. So potential residual renal cancer cells could be partly inhibited and eliminated by organ preservation process. [ABSTRACT FROM AUTHOR]

The aim of the research was to study the clinical feasibility of autograft-prosthesis composite for aggressive giant cell tumor of bone around knee. Seven patients (5 males and 2 females, the mean age of 30.5 years old) with giant cell tumor of bone around knee underwent tumor resection and reconstructed with autograft-prosthesis composites since January 2006. Five lesions located at the distal femur and 2 at the proximal tibia. There were 3 patients with primary tumor and 4 with recurrent. Three patients with pathological fracture and all patients were of Campanacci III. All patients were done follow-up from 12 to 36 months. No recurrence, metastasis, and prosthesis loosening were found. The mean healing time between autograft and host bone was 5 months. The mean motion range of affected knee were 90° (70°–110°). Our data documented the clinical feasibility of autograft-prosthesis composite for giant cell tumor of bone around knee which should be performed tumor resection and reconstructed with prosthesis. The long-term outcomes remain to be further proven. [ABSTRACT FROM AUTHOR]

Background: Giant cell tumors (GCT) around the knee are common and pose a special problem of reconstruction after tumor excision, especially for grade III GCT. We questioned whether en bloc resection and reconstruction with alcohol inactivated autograft-prosthesis composite would provide (1) local control and long-term survival and (2) useful limb function in patients who had grade III GCT around the knee.Methods: We retrospectively reviewed eight patients (5 males and 3 females) treated with this procedure with mean age of 31 years (range 20 to 43 years) from Jan 2007 to Oct 2008. 5 lesions were located in distal femur and 3 in proximal tibia. 4 patients were with primary tumor and the other 4 with recurrence. 2 patients showed pathological fracture.Results: Mean Follow-up is 54 months ranging from 38 to 47 months. No recurrence, metastasis, prosthesis loosening were found. The mean healing time between autograft and host bone was 5.5 months. The mean MSTS score was 26.3 (88%) ranging from 25 to 29. The mean ISOLS composite graft score was 32.8 (88.5%) ranging from 28 to 35. Creeping substitution is possibly the main way in bony junction. The healing time in femoral lesion is faster than that in tibial lesion.Conclusions: The technique of alcohol inactivated autograft-prosthesis composite could be able to achieve satisfactory oncological and functional outcomes in Grade III GCT. [ABSTRACT FROM AUTHOR]