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Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_3 | Pages 1 - 1
23 Jan 2024
Stanley AL Jones TJ Dasic D Kakarla S Kolli S Shanbhag S McCarthy MJH
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Aims

Traumatic central cord syndrome (CCS) typically follows a hyperextension injury and results in a motor impairment affecting the upper limbs more than the lower limbs, with occasional sensory impairment and urinary retention seen. Current evidence on mortality and long-term outcomes is limited. The primary aim of this study is to assess the five-year mortality of CCS, and to determine any difference in mortality between management groups or age.

Patients and Methods

Patients ≥18 years with traumatic CCS between January 2012 and December 2017 in Wales were identified. Patient demographics and injury, management and outcome data was collected. Statistical analysis was performed to assess mortality and between group differences.


Study Design

Single surgeon prospective cohort with radiological follow-up.

Background

Anjarwalla et al. have shown that the addition of posterior pedicle supplementation without posterolateral fusion during an ALIF procedure significantly increases the rate of interbody fusion when using a carbon fibre / PEEK cage packed with autogenous iliac crest graft. Stand alone ALIF cages which utilise screws passing through the interbody cage and into the vertebral bodies were designed to obviate the need for a posterior procedure by increasing the anterior construct stability and fusion rate.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_I | Pages 4 - 4
1 Jan 2011
McCarthy MJH Long R Weston R Gheduzzi S Keenan J Miles A
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Objectives: To compare the biomechanical properties of lag screw insertion in a laboratory model. Two blades, the Synthes Dynamic Helical Hip Screw (DHHS) and Proximal Femoral Nail Antirotation (PFNA), and two screws, the Synthes Dynamic Hip Screw (DHS) and Stryker Gamma 3 lag screw, were compared.

Setting: Orthopaedic biomechanics laboratory.

Design: Insertion testing was carried out in high and low density polyurethane foam mounted and attached to a Zwick Roell Amsler Hydrowin.

Outcome Measures: The axial load and torque during insertion of the implants was measured.

Results: The force required to insert the DHHS and PFNA blades was greater than the DHS and Gamma 3 screws into both low and high density foam. The force required to insert the DHHS and PFNA blades into high density foam was greater than low density foam. The torque required to insert the DHHS and PFNA blades into high density foam was less than that to insert the DHS and Gamma 3 screws. The torque required to insert the DHS and Gamma 3 screws into low density foam was less than the DHHS and PFNA blades. The torque during insertion of the DHHS and PFNA blades seemed to be independent of foam density.

Conclusions: The insertional properties of blades are significantly different to screws and this may have clinical importance.