BACKGROUND Osteonecrosis of the femoral head(ONFH)is a destructive condition most commonly affecting young and middle-aged patients.The leading consequence of ONFH is often a significant articular disability.Effective...BACKGROUND Osteonecrosis of the femoral head(ONFH)is a destructive condition most commonly affecting young and middle-aged patients.The leading consequence of ONFH is often a significant articular disability.Effective joint-preserving surgical treatments are urgently needed for patients with early stage ONFH when outcomes of treatment are in general better than the advanced stage disease.AIM To introduce a new surgery procedure called percutaneous expanded core decompression and mixed bone graft technique,which is a new way of jointpreserving surgical treatments.METHODS The clinical data of 6 patients with ONFH diagnosed and treated with the procedure called percutaneous expanded core decompression and mixed bone graft technique at The First Hospital of Qiqihar from March 2013 to August 2019 were retrospectively analyzed;the follow-up ended in December 2019.RESULTS There were 6 male patients with an average age of 43 years in our study.Gratifying results have been obtained from the comparison of Harris hip score,visual analogue scale,and imaging examination before and after operation.CONCLUSION This new modified technique is simple,safe,and reliable.No serious perioperative complications were observed in our cases.Advantages of the single blade expandable reamer are obvious.The adjuvant substance is inexpensive and easy to obtain.Thus,this technique is an effective joint-preserving surgical treatment for patients with early stage of ONFH.展开更多
Introduction: Iliac particulate cancellous bone and marrow (PCBM) is commonly used as a high-quality reconstruction material;however, PCBM cannot be extracted in sufficient amounts to meet demand. To determine the app...Introduction: Iliac particulate cancellous bone and marrow (PCBM) is commonly used as a high-quality reconstruction material;however, PCBM cannot be extracted in sufficient amounts to meet demand. To determine the appropriate amount of iliac PCBM to be collected, we used digital technology to measure the volume required for jaw reconstruction before surgery. Clinical Case: The patient, a 23-year-old man, underwent surgery for a calcifying odontogenic cyst. A maxillary cyst occupied the left anterior-premolar region (tooth 21 - 25) and the deciduous canine remained;a permanent canine was included in the cyst. We planned to preserve the teeth except for the impacted canine, completely excise the maxillary cyst, and preserve the alveolar ridge morphology. Preoperative digital imaging was used to determine the amount of alveolar ridge reconstruction required and accordingly determine the amount of iliac cancellous bone to be harvested. We used a titanium mesh tray and grafts of iliac particulate cancellous bone and marrow to reconstruct the alveolar ridge. The amount of iliac cancellous bone that needed to be collected was clarified and the supply amount could be collected in just the right amount;thus, the cortical bone of the iliac inner plate could be preserved. The alveolar bone morphology was reconstructed to allow the placement of dental implants as per the preoperative digital surgery. Three years after the operation, no sign of recurrence has been observed. Conclusion: Minimally invasive surgery was performed by clarifying the amount of iliac cancellous bone graft that needs to be harvested, which improved the accuracy of surgery.展开更多
[目的]用可注射硫酸钙M IIGX3(m in im ally invasive in jectab le graft X3,以下简称M IIGX3)及医用骨水泥分别强化猪腰椎椎弓根钉内固定,测定椎弓根钉最大轴向拔出力,比较两种材料对椎弓根钉固定强度的影响。[方法]8个新鲜猪腰椎作...[目的]用可注射硫酸钙M IIGX3(m in im ally invasive in jectab le graft X3,以下简称M IIGX3)及医用骨水泥分别强化猪腰椎椎弓根钉内固定,测定椎弓根钉最大轴向拔出力,比较两种材料对椎弓根钉固定强度的影响。[方法]8个新鲜猪腰椎作为实验对象,在同一椎体双侧椎弓根制作钉道,一侧在固定螺钉前加用M IIGX3(M IIGX3组),另一侧加用骨水泥(骨水泥组)。24 h后行轴向拔出力测试。[结果]最大轴向拔出力,M IIGX3组1915±375 N,骨水泥组3625±775 N,二者配对t检验有显著差异(P<0.01)。[结论]骨水泥对椎弓根钉的固定作用大于M IIGX3。当存在脊柱滑脱需较大提拉力量或椎弓根钉需承受较大拔出力的节段,使用骨水泥进行强化更为合适。展开更多
基金Supported by The First Hospital of Qiqihar,No.2013-006Department of Veterans Affairs and the Veterans Administration Medical Center in Memphis,No.I01 BX000671.
文摘BACKGROUND Osteonecrosis of the femoral head(ONFH)is a destructive condition most commonly affecting young and middle-aged patients.The leading consequence of ONFH is often a significant articular disability.Effective joint-preserving surgical treatments are urgently needed for patients with early stage ONFH when outcomes of treatment are in general better than the advanced stage disease.AIM To introduce a new surgery procedure called percutaneous expanded core decompression and mixed bone graft technique,which is a new way of jointpreserving surgical treatments.METHODS The clinical data of 6 patients with ONFH diagnosed and treated with the procedure called percutaneous expanded core decompression and mixed bone graft technique at The First Hospital of Qiqihar from March 2013 to August 2019 were retrospectively analyzed;the follow-up ended in December 2019.RESULTS There were 6 male patients with an average age of 43 years in our study.Gratifying results have been obtained from the comparison of Harris hip score,visual analogue scale,and imaging examination before and after operation.CONCLUSION This new modified technique is simple,safe,and reliable.No serious perioperative complications were observed in our cases.Advantages of the single blade expandable reamer are obvious.The adjuvant substance is inexpensive and easy to obtain.Thus,this technique is an effective joint-preserving surgical treatment for patients with early stage of ONFH.
文摘Introduction: Iliac particulate cancellous bone and marrow (PCBM) is commonly used as a high-quality reconstruction material;however, PCBM cannot be extracted in sufficient amounts to meet demand. To determine the appropriate amount of iliac PCBM to be collected, we used digital technology to measure the volume required for jaw reconstruction before surgery. Clinical Case: The patient, a 23-year-old man, underwent surgery for a calcifying odontogenic cyst. A maxillary cyst occupied the left anterior-premolar region (tooth 21 - 25) and the deciduous canine remained;a permanent canine was included in the cyst. We planned to preserve the teeth except for the impacted canine, completely excise the maxillary cyst, and preserve the alveolar ridge morphology. Preoperative digital imaging was used to determine the amount of alveolar ridge reconstruction required and accordingly determine the amount of iliac cancellous bone to be harvested. We used a titanium mesh tray and grafts of iliac particulate cancellous bone and marrow to reconstruct the alveolar ridge. The amount of iliac cancellous bone that needed to be collected was clarified and the supply amount could be collected in just the right amount;thus, the cortical bone of the iliac inner plate could be preserved. The alveolar bone morphology was reconstructed to allow the placement of dental implants as per the preoperative digital surgery. Three years after the operation, no sign of recurrence has been observed. Conclusion: Minimally invasive surgery was performed by clarifying the amount of iliac cancellous bone graft that needs to be harvested, which improved the accuracy of surgery.
文摘[目的]用可注射硫酸钙M IIGX3(m in im ally invasive in jectab le graft X3,以下简称M IIGX3)及医用骨水泥分别强化猪腰椎椎弓根钉内固定,测定椎弓根钉最大轴向拔出力,比较两种材料对椎弓根钉固定强度的影响。[方法]8个新鲜猪腰椎作为实验对象,在同一椎体双侧椎弓根制作钉道,一侧在固定螺钉前加用M IIGX3(M IIGX3组),另一侧加用骨水泥(骨水泥组)。24 h后行轴向拔出力测试。[结果]最大轴向拔出力,M IIGX3组1915±375 N,骨水泥组3625±775 N,二者配对t检验有显著差异(P<0.01)。[结论]骨水泥对椎弓根钉的固定作用大于M IIGX3。当存在脊柱滑脱需较大提拉力量或椎弓根钉需承受较大拔出力的节段,使用骨水泥进行强化更为合适。
