Computer-Assisted Fracture Reduction of Pelvic Ring Fractures: An In Vitro Study

Hüfner, T.; Pohlemann, Tim; Tarte, S; Gänsslen, Axel; Geerling, J.; Bazak, N.; Citak, Mustafa; Lp, Nolte; Krettek, C.

doi:10.1097/00003086-200206000-00028

Cited by 41 publications

(18 citation statements)

References 17 publications

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“…Commercially available navigation systems using preoperative CT scan data already exist for tumor resection in the pelvis ) and also for sacroiliac screw insertion (Gautier et al 2001), pelvic osteotomies (Langlotz et al 1998, Van Hellemondt et al 2002, and pelvic ring fracture reduction (Hüfner et al 2001(Hüfner et al , 2002. However, to our knowledge, no comparisons of the accuracy of osseous pelvic tumor resection between conventional and CA procedures have yet been performed.…”

Section: Resection Marginmentioning

confidence: 99%

Surgical inaccuracy of tumor resection and reconstruction within the pelvis: An experimental study

et al. 2008

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Background and purpose Osseous pelvic tumors can be resected and reconstructed using massive bone allografts. Geometric accuracy of the conventional surgical procedure has not yet been documented. The aim of this experimental study was mainly to assess accuracy of tumoral resection with a 10-mm surgical margin, and also to evaluate the geometry of the host-graft reconstruction.Methods An experimental model on plastic pelvises was designed to simulate tumor resection and reconstruction. 4 experienced surgeons were asked to resect 3 different tumors and to reconstruct pelvises. 24 resections and host-graft junctions were available for evaluation. Resection margins were measured. Several methods were created to evaluate geometric properties of the host-graft junction.Results The probability of a surgeon obtaining a 10-mm surgical margin with a 5-mm tolerance above or below, was 52% (95% CI: 37-67). Maximal gap, gap volume, and mean gap between host and graft was 3.3 (SD 1.9) mm, 2.7 (SD 2.1) cm 3 and 3.2 (SD 2.1) mm, respectively. Correlation between these 3 reconstruction measures and the degree of contact at the host-graft junction was poor.Interpretation 4 experienced surgeons did not manage to consistently respect a fixed surgical margin under ideal working conditions. The complex 3-dimensional architecture of the pelvis would mainly explain this inaccuracy. Solutions to this might be to increase the

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Section: Resection Marginmentioning

confidence: 99%

Surgical inaccuracy of tumor resection and reconstruction within the pelvis: An experimental study

et al. 2008

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“…Currently, navigation systems often use CT data to navigate pedicle screw applications [1,11,17], cup placements for hip arthroplasties [16], TKAs [8,19], and cruciate ligament reconstructions [9,23]. Excising bone tumors is sometimes difficult even for an experienced surgeon because the extent and anatomic location of the tumors are variable and cannot be detected by ordinary radiography or fluoroscopy [15,30]. In such cases, precise excision might not be possible.…”

Section: Introductionmentioning

confidence: 99%

Navigation-assisted Surgery for Bone and Soft Tissue Tumors With Bony Extension

Ieguchi

Hoshi

Takada

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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“…Improvements in intraoperative reduction assessment have been made. [7][8][9][10] The use of less-invasive operative techniques demands outstanding skill in closed reduction. The reduction must be done prior to implant application and must be maintained during fixation.…”

Section: Introductionmentioning

confidence: 99%

Forces and torques during fracture reduction: Intraoperative measurements in the femur

Gösling

Westphal

Faulstich

et al. 2006

Journal Orthopaedic Research

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Reduction is a crucial step in fracture treatment. We determined intraoperative peak forces and torques during fracture reduction in seven patients with eight fractures of the femoral shaft. All fractures were temporarily stabilized by external fixation. Force and torque measurements were performed during the subsequent intramedullary nailing procedure. A three-dimensional load cell was attached to the distal femur fragment using two Schanz screws. All forces and torques were registered on-line during the reduction process. The maximum resulting force was 411 N, the maximum resulting torque 74 N Á m. The highest force was observed along the shaft axis with 396 N for distraction. The maximum torque value was measured around the frontal axis, being 74 N Á m for antecurvature. These results may assist the development of new reduction techniques and devices.

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Computer-Assisted Fracture Reduction of Pelvic Ring Fractures: An In Vitro Study

Cited by 41 publications

References 17 publications

Surgical inaccuracy of tumor resection and reconstruction within the pelvis: An experimental study

Surgical inaccuracy of tumor resection and reconstruction within the pelvis: An experimental study

Navigation-assisted Surgery for Bone and Soft Tissue Tumors With Bony Extension

Forces and torques during fracture reduction: Intraoperative measurements in the femur

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