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| 1 | Modified porous tantalum rod technique for the treatment of femoral head osteonecrosis显示文摘AIM: To study a modified porous tantalum technique for the treatment of osteonecrosis of the femoral head.METHODS: The porous tantalum rod was combined with endoscopy,curettage,autologous bone grafting and use of bone marrow aspirates from iliac crest aspiration in 49 patients(58 hips) with a mean age of 38 years.The majority of the patients had idiopathic osteonecrosis,followed by corticosteroid-induced osteonecrosis.Thirtyeight hips were of Steinberg stage Ⅱ disease and 20 hips were of stage Ⅲ disease.Patients were followed for 5 years and were evaluated clinically with the Merle D'Aubigne and Postel score and radiologically.The primary outcome of the study was survival based on the conversion to total hip arthroplasty(THA).Secondary outcomes included deterioration of the osteonecrosis to a higher disease stage at 5 years compared to the preoperative period and identification of factors that were associated with survival.The Kaplan-Meier survival analysis was performed to evaluate the survivorship ofthe prosthesis,and the Fisher exact test was performed to test associations between various parameters with survival.RESULTS: No patient developed any serious intraoperative or postoperative complication including implant loosening or migration and donor site morbidity.During the 5-year follow up,1 patient died,7 patients had disease progression and 4 hips were converted to THA.The 5-year survival based on conversion to THA was 93.1% and the respective rate based on disease progression was 87.9%.Stage Ⅱ disease was associated with statistically significant better survival rates compared to stage Ⅲ disease(P = 0.04).The comparison between idiopathic and non-idiopathic osteonecrosis and between steroid-induced and non-steroid-induced osteonecrosis did not showed any statistically significant difference in survival rates.The clinical evaluation revealed statistically significantly improved Merle d'Aubigne scores at 12 mo postoperatively compared to the preoperative period(P < 0.001).The mean preoperative Merle d'Aubigne score was 13.0(SD: 1.8).The respective score at 12 mo improved to 17.0(SD: 2.0).The 12-mo mean score was retained at 5 years.CONCLUSION: The modified porous tantalum rod technique presented here showed encouraging outcomes.The survival rates based on conversion to THA are the lowest reported in the published literature. | Emilios E Pakos Panayiotis Megas Nikolaos K Paschos Spyridon A Syggelos Antonios Kouzelis Georgios Georgiadis Theodoros A Xenakis | 2015 | World Journal of Orthopedics2015，6，10： | 20 |
| 2 | Mobility management for femtocells in LTE advanced: key aspects and survey of handover decision algorithms显示文摘 | Xenakis D Passas N Merakos L | 2014 | IEEE Communications Surveys & Tu torials2014，16，1： | 1 |
| 3 | Low-grade central osteosarcoma of distal femur, resembling fibrous dysplasia显示文摘We report a case of a 32 year-old male, admitted for a lytic lesion of the distal femur. One month after the first X-ray, clinical and imaging deterioration was evident. Open biopsy revealed fibrous dysplasia. Three months later, the lytic lesion had spread to the whole distal third of the femur reaching the articular cartilage. The malignant clinical and imaging features necessitated excision of the lesion and reconstruction with a custom-made total knee arthroplasty. Intraoperatively, no obvious soft tissue infiltration was evident. Nevertheless, an excision of the distal 15.5 cm of the femur including 3.0 cm of the surrounding muscles was finally performed. The histological examination of the excised specimen revealed central low-grade osteosarcoma. Based on the morphological features of the excised tumor, allied to the clinical findings, the diagnosis of low-grade central osteosarcoma was finally made although characters of a fibrous dysplasia were apparent. Central low-grade osteosarcoma is a rare, well-differentiated sub-type of osteosarcoma, with clinical, imaging, and histological features similar to benign tumours. Thus, initial misdiagnosis is usual with the condition commonly mistaken for fibrous dysplasia. Central low-grade osteosarcoma is usually treated with surgery alone, with rare cases of distal metastases. However, regional recurrence is quite frequent after close margin excision. | Haris S Vasiliadis Christina Arnaoutoglou Sotiris Plakoutsis Michalis Doukas Anna Batistatou Theodoros A Xenakis | 2013 | World Journal of Orthopedics2013，4，4： | 1 |
| 4 | On Demand Network-Wide VPN Deployment in GPRS显示文摘 | Xenakis C Merakos L | 2002 | IEEE Network2002，16，6： | 1 |
| 5 | Bridge plating osteosynthesis of 20 comminuted fractures of the femur 显示文摘 | CHRISOVITSINOS J P XENAKIS T PAPAKOSTIDES K G | 1997 | Acta Orthop Scand Suppl1997，275，10： | 1 |
| 6 | Overweight and obese in gestational diabetes:The impact on pregnancy outcome显示文摘 | Langer O Yogev Y Xenakis EM | 2005 | Am J Obstet Gynecol2005，192，6： | 1 |
| 7 | The association between preeclampsia and the severity of gestational diabetes: the impact of glycemic control 显示文摘 | Yogev Y Xenakis EM Langer O | 2004 | Am J Obstet Gynecol2004，191，5： | 1 |
| 8 | A review of 144 patients显示文摘 | Beris AE Kabbani KT Xenakis TA Surgical treatment of malleolar fractures | 1997 | Clin Orthop Relat Res1997，，341： | 1 |
| 9 | The relation between interaction aesthetics and affordances 显示文摘 | Xenakis I Arnellos A | 2013 | Design Studies2013，34，： | 1 |
| 10 | Complications in limb - lengthening procedures : a review of 49 cases 显示文摘 | Hantes ME Malizos KN Xenakis TA | 2001 | Am J Orthop2001，6，： | 1 |
| 11 | Surgical treatment of multiple knee ligament injuries in 44 patients:2-8 years follow-up re-sults显示文摘 | Tzurbakis M Diamantopoulos A Xenakis T | | 0，，： | 1 |
| 12 | Overweight and obese in gesrational diabetes: The impact on pregnancy outcome 显示文摘 | Langer O Yogev Y Xenakis EM | 2005 | Am J Obstet Gynecol2005，192，6： | 1 |
| 13 | The association between preeclampsia and the severity of gestational diabetes: the impact of glycemic control 显示文摘 | Yogev Y Xenakis EM Langer O | 2004 | Am J Obstet Gynecol2004，191，5： | 1 |
| 14 | Activity and stability studies of Mucor miehei lipase immobilized in novel microulsion-based organogels 显示文摘 | Delimitsou C Zoumpanioti M Xenakis A | 2002 | giocatalysis and giotransformation2002，20，5： | 1 |
| 15 | A generic characterization of the overheads imposed by IPSEC and associated cryptographic algorithms 显示文摘 | Xenakis C Nikolaos L Lazaros M | 2006 | The International Journal of Computer and Telecommunications Networking2006，50，17： | 1 |
| 16 | Overweight and obese in gestational diabetes: The impact on pregnancy outcome 显示文摘 | Langer O Yogev Y Xenakis EM | 2005 | Am J Obstet Gynecol2005，192，： | 1 |
| 17 | One-Pass EAP-AKA Authentication in 3G-WLAN Integrated Networks 显示文摘 | Ntantogian C Xenakis C | 2009 | Wireless Pers Commun2009，，48： | 1 |
| 18 | Liquefaction re- sistance of sand-sih mixtures : an experimental investigation of the effect of fines 显示文摘 | XENAKI V C ATHANASOPOULOS G A | 2003 | Soil Dynamics and Earthquake Engineering2003，23，： | 1 |
| 19 | The association between preeclampsia and the severity of gestational diabetes:the impact of glycemic control显示文摘 | Yogev Y Xenakis EM Langer O | 2004 | Am J Obstet Gynecol2004，191，5： | 1 |
| 20 | Liquefaction resistance of sand-silt mixtures:an experimental investigation of the effect of fines显示文摘 | Xenaki V C Athanasopoulos G A | 2003 | Soil Dynamics and Earthquake Engineering2003，23，： | 1 |
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