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Steve Roche - One of the best experts on this subject based on the ideXlab platform.

  • IS THE PRESENCE OF A L5 TRANSVERSE PROCESS Fracture A RELIABLE SIGN OF PELVIC Fracture INSTABILITY
    2018
    Co-Authors: Sithombo Maqungo, Dilesh Chhiba, G Mccollum, M.m. Kimani, Steve Roche
    Abstract:

    Purpose of study:The presence of an L5 transverse process Fracture is reported in many texts to be a marker of Pelvis Fracture instability. There is paucity of literature to support this view. Available studies have been performed on patients who were already known to have a Pelvis Fracture. No study has attempted to document the presence of this lesion in the absence of a Pelvis Fracture.Primary aim: To identify the correlation between the presence of a L5 transverse process Fracture and an unstable pelvic ring injury.Secondary aim: To establish whether a L5 transverse process Fracture can occur in the absence of a Pelvis Fracture.Methods:We conducted a retrospective review of all CT scans performed in patients who presented to a Level 1 Trauma Unit for blunt abdomino-pelvic trauma between January 1, 2012 and August 28, 2013. A total of 203 patients met our inclusion criteria.Results:Fifty four of these 203 patients (26%) sustained a Pelvis Fracture. Of these 54 patients 26 (48%) had an unstable Fracture...

  • The L5 transverse process Fracture revisited. Does its presence predict the Pelvis Fracture instability
    Injury, 2015
    Co-Authors: Sithombo Maqungo, Mwangi Kimani, Dilesh Chhiba, G Mccollum, Steve Roche
    Abstract:

    Abstract Background The presence of a L5 transverse process Fracture is reported in many texts to be a marker of Pelvis Fracture instability. There is paucity of literature to support this view. Only two previous studies have been performed on this subject with statistical analysis. Methods We conducted a retrospective cross-sectional review of all abdominopelvic CT scans performed for blunt abdominal trauma in a Level 1 Trauma Unit between January 2012 and August 2013. A total of 203 patients met our inclusion criteria. Fifty four (54) of these patients had an associated Pelvis Fracture. Results Of the 54 patients with Pelvis Fractures 26 (48%) had an unstable Fracture (AO Type B and C) and 28 (52%) had a stable Pelvis Fracture (AO Type A). Five (19%) of the 26 patients with an unstable Pelvis Fracture had an associated L5 transverse process Fracture. This association was not statistically significant ( P  = 0.724). Seven (12%) of the 28 patients with a stable Fracture pattern had an associated L5 transverse process Fracture. Three patients (2%) had an L5 transverse Fracture in the absence of a demonstrable Pelvis Fracture. The relative risk of an unstable Pelvis Fracture in the presence of a L5 transverse process Fracture is 1.2 (CI 0.6 2.3). Conclusions The presence of an L5 transverse process Fracture on an abdominopelvic CT scan is strongly associated with an underlying Pelvis Fracture ( P P  = 0.724). The latter finding differs from the previously published studies.

  • IS THE PRESENCE OF A L5 TRANSVERSE PROCESS Fracture A RELIABLE SIGN OF PELVIC Fracture INSTABILITY
    Journal of Bone and Joint Surgery-british Volume, 2014
    Co-Authors: Sithombo Maqungo, Dilesh Chhiba, G Mccollum, M.m. Kimani, Steve Roche
    Abstract:

    Purpose of study: The presence of an L5 transverse process Fracture is reported in many texts to be a marker of Pelvis Fracture instability. There is paucity of literature to support this view. Available studies have been performed on patients who were already known to have a Pelvis Fracture. No study has attempted to document the presence of this lesion in the absence of a Pelvis Fracture. Primary aim: To identify the correlation between the presence of a L5 transverse process Fracture and an unstable pelvic ring injury. Secondary aim: To establish whether a L5 transverse process Fracture can occur in the absence of a Pelvis Fracture. Methods: We conducted a retrospective review of all CT scans performed in patients who presented to a Level 1 Trauma Unit for blunt abdomino-pelvic trauma between January 1, 2012 and August 28, 2013. A total of 203 patients met our inclusion criteria. Results: Fifty four of these 203 patients (26%) sustained a Pelvis Fracture. Of these 54 patients 26 (48%) had an unstable Fracture pattern according to the AO classification. Five of these 26 patients (19%) had an associated L5 transverse process Fracture. Seven (12%) had an L5 transverse process Fracture associated with a stable Fracture pattern. Three patients (1.4%) had an isolated L5 transverse process Fracture in the absence of a Pelvis Fracture. Conclusion: This study confirms the association between the presence of a L5 transverse process Fracture and an unstable Pelvis Fracture pattern. This injury is rarely seen in the absence of a Pelvis Fracture so its presence should alert the treating clinicians to the existence of a Pelvis Fracture.

Sithombo Maqungo - One of the best experts on this subject based on the ideXlab platform.

  • IS THE PRESENCE OF A L5 TRANSVERSE PROCESS Fracture A RELIABLE SIGN OF PELVIC Fracture INSTABILITY
    2018
    Co-Authors: Sithombo Maqungo, Dilesh Chhiba, G Mccollum, M.m. Kimani, Steve Roche
    Abstract:

    Purpose of study:The presence of an L5 transverse process Fracture is reported in many texts to be a marker of Pelvis Fracture instability. There is paucity of literature to support this view. Available studies have been performed on patients who were already known to have a Pelvis Fracture. No study has attempted to document the presence of this lesion in the absence of a Pelvis Fracture.Primary aim: To identify the correlation between the presence of a L5 transverse process Fracture and an unstable pelvic ring injury.Secondary aim: To establish whether a L5 transverse process Fracture can occur in the absence of a Pelvis Fracture.Methods:We conducted a retrospective review of all CT scans performed in patients who presented to a Level 1 Trauma Unit for blunt abdomino-pelvic trauma between January 1, 2012 and August 28, 2013. A total of 203 patients met our inclusion criteria.Results:Fifty four of these 203 patients (26%) sustained a Pelvis Fracture. Of these 54 patients 26 (48%) had an unstable Fracture...

  • The L5 transverse process Fracture revisited. Does its presence predict the Pelvis Fracture instability
    Injury, 2015
    Co-Authors: Sithombo Maqungo, Mwangi Kimani, Dilesh Chhiba, G Mccollum, Steve Roche
    Abstract:

    Abstract Background The presence of a L5 transverse process Fracture is reported in many texts to be a marker of Pelvis Fracture instability. There is paucity of literature to support this view. Only two previous studies have been performed on this subject with statistical analysis. Methods We conducted a retrospective cross-sectional review of all abdominopelvic CT scans performed for blunt abdominal trauma in a Level 1 Trauma Unit between January 2012 and August 2013. A total of 203 patients met our inclusion criteria. Fifty four (54) of these patients had an associated Pelvis Fracture. Results Of the 54 patients with Pelvis Fractures 26 (48%) had an unstable Fracture (AO Type B and C) and 28 (52%) had a stable Pelvis Fracture (AO Type A). Five (19%) of the 26 patients with an unstable Pelvis Fracture had an associated L5 transverse process Fracture. This association was not statistically significant ( P  = 0.724). Seven (12%) of the 28 patients with a stable Fracture pattern had an associated L5 transverse process Fracture. Three patients (2%) had an L5 transverse Fracture in the absence of a demonstrable Pelvis Fracture. The relative risk of an unstable Pelvis Fracture in the presence of a L5 transverse process Fracture is 1.2 (CI 0.6 2.3). Conclusions The presence of an L5 transverse process Fracture on an abdominopelvic CT scan is strongly associated with an underlying Pelvis Fracture ( P P  = 0.724). The latter finding differs from the previously published studies.

  • IS THE PRESENCE OF A L5 TRANSVERSE PROCESS Fracture A RELIABLE SIGN OF PELVIC Fracture INSTABILITY
    Journal of Bone and Joint Surgery-british Volume, 2014
    Co-Authors: Sithombo Maqungo, Dilesh Chhiba, G Mccollum, M.m. Kimani, Steve Roche
    Abstract:

    Purpose of study: The presence of an L5 transverse process Fracture is reported in many texts to be a marker of Pelvis Fracture instability. There is paucity of literature to support this view. Available studies have been performed on patients who were already known to have a Pelvis Fracture. No study has attempted to document the presence of this lesion in the absence of a Pelvis Fracture. Primary aim: To identify the correlation between the presence of a L5 transverse process Fracture and an unstable pelvic ring injury. Secondary aim: To establish whether a L5 transverse process Fracture can occur in the absence of a Pelvis Fracture. Methods: We conducted a retrospective review of all CT scans performed in patients who presented to a Level 1 Trauma Unit for blunt abdomino-pelvic trauma between January 1, 2012 and August 28, 2013. A total of 203 patients met our inclusion criteria. Results: Fifty four of these 203 patients (26%) sustained a Pelvis Fracture. Of these 54 patients 26 (48%) had an unstable Fracture pattern according to the AO classification. Five of these 26 patients (19%) had an associated L5 transverse process Fracture. Seven (12%) had an L5 transverse process Fracture associated with a stable Fracture pattern. Three patients (1.4%) had an isolated L5 transverse process Fracture in the absence of a Pelvis Fracture. Conclusion: This study confirms the association between the presence of a L5 transverse process Fracture and an unstable Pelvis Fracture pattern. This injury is rarely seen in the absence of a Pelvis Fracture so its presence should alert the treating clinicians to the existence of a Pelvis Fracture.

D.m. Hahn - One of the best experts on this subject based on the ideXlab platform.

  • Late recovery of sciatic nerve palsy at twelve years following Pelvis Fracture
    Injury, 2010
    Co-Authors: T. Al-atassi, J.r.a. Phillips, A.s. Eid, P. Choudhray, D.m. Hahn
    Abstract:

    Injury to the sciatic nerve is a well recognised complication of Fractures of the pelvic ring and acetabulum, occurring either at the time of injury or as an iatrogenic injury secondary to treatment. The prevalence of sciatic nerve in injury has been reported to be 10–13% after acetabular Fracture or Fracture-dislocation of the hip. The natural history of sciatic nerve recovery after injury is not well established. Rates of clinical recovery of nerve function of between 60% and 75% have been reported at up to three years post injury. Significant involvement of the common peroneal nerve is associated with the worst prognosis, and outcome is generally poor. There are no long term studies identifying the rate of late nerve recovery. We present a patient who has developed late partial motor and sensory recovery of the sciatic nerve at twelve years post injury to the pelvic ring, which has been confirmed by the presence of nerve regeneration by nerve conduction studies.

Sanbao Jin - One of the best experts on this subject based on the ideXlab platform.

Lu Zhao - One of the best experts on this subject based on the ideXlab platform.

  • PHYSICAL SYMMETRY AND VIRTUAL PLANE-BASED REDUCTION REFERENCE: A PRELIMINARY STUDY FOR ROBOT-ASSISTED PELVIC Fracture REDUCTION
    Journal of Mechanics in Medicine and Biology, 2016
    Co-Authors: Wang Lifeng, Pei-fu Tang, Lihai Zhang, Tianmiao Wang, Zhao Yanpeng, Na Guo, Lu Zhao
    Abstract:

    Traditional Pelvis Fracture reduction suffers from some disadvantages. Robot-assisted Pelvis Fracture reduction offers some promise in solving these problems. However, the reduction reference to guide robot motion is a key issue that must be resolved. In this paper, we propose a physical symmetry and virtual plane-based reduction reference and adopt the method of registration to calculate the virtual plane for the reference, which were verified via experiments. The results of the position symmetry experiments of the original Pelvis and virtual plane-based position symmetry experiments were similar; both showed that the symmetry errors of the Pelvis were less than 4mm and 2.5∘. The results indicated that the proposed method could be used as a reference for robot-assisted Pelvis Fracture reduction.

  • PHYSICAL SYMMETRY AND VIRTUAL PLANE-BASED REDUCTION REFERENCE: A PRELIMINARY STUDY FOR ROBOT-ASSISTED PELVIC Fracture REDUCTION
    Journal of Mechanics in Medicine and Biology, 2016
    Co-Authors: Lifeng Wang, Pei-fu Tang, Lihai Zhang, Tianmiao Wang, Na Guo, Yanpeng Zhao, Lu Zhao
    Abstract:

    Traditional Pelvis Fracture reduction suffers from some disadvantages. Robot-assisted Pelvis Fracture reduction offers some promise in solving these problems. However, the reduction reference to guide robot motion is a key issue that must be resolved. In this paper, we propose a physical symmetry and virtual plane-based reduction reference and adopt the method of registration to calculate the virtual plane for the reference, which were verified via experiments. The results of the position symmetry experiments of the original Pelvis and virtual plane-based position symmetry experiments were similar; both showed that the symmetry errors of the Pelvis were less than 4[Formula: see text]mm and 2.5[Formula: see text]. The results indicated that the proposed method could be used as a reference for robot-assisted Pelvis Fracture reduction.