PMID- 22196385
OWN - NLM
STAT- MEDLINE
DCOM- 20120423
LR  - 20141120
IS  - 1936-9727 (Electronic)
IS  - 1936-9719 (Linking)
VI  - 69
IP  - 4
DP  - 2011
TI  - Biomechanical comparison of translaminar screw versus pedicle screw 
      supplementation of anterior femoral ring allografts in one-level lumbar spine 
      fusion.
PG  - 298-302
AB  - Pedicle screws (PS) can provide initial stabilization of anterior interbody 
      femoral ring allograft (FRA) lumbar constructs. Translaminar screws (TLS) have 
      also been advocated for this procedure. The objective of this study was to use an 
      in vitro human cadaveric model to compare the stability of one-level anterior 
      interbody lumbar constructs stabilized with PS and those stabilized with TLS. 
      Five human cadaveric spinal motion segments (L4-S2) were biomechanically 
      evaluated in the intact condition and using the follow- ing methods of 
      stabilization: anterior interbody fusion with FRA, anterior FRA supplemented with 
      PS, and anterior FRA supplemented with TLS. Stability was determined for each 
      construct by measuring construct displacement as a function of applied load under 
      the following conditions: compression, flexion, extension, lateral bending to 
      each side, and axial torsion. There were no statistically significant differences 
      in construct stability between FRA supplemented with PS and FRA supplemented with 
      TLS under any of the loading conditions. In selected cases, supplementation of 
      anterior femoral ring allograft with translaminar screws is a viable alternative 
      to supplementation with pedicle screws.
FAU - Razi, Afshin E
AU  - Razi AE
AD  - Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New 
      York, USA. afshin.razi@nyumc.org
FAU - Spivak, Jeffrey M
AU  - Spivak JM
FAU - Kummer, Frederick J
AU  - Kummer FJ
FAU - Hersh, David S
AU  - Hersh DS
FAU - Goldstein, Jeffrey A
AU  - Goldstein JA
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Bull NYU Hosp Jt Dis
JT  - Bulletin of the NYU hospital for joint diseases
JID - 101300541
SB  - IM
MH  - Biomechanical Phenomena
MH  - *Bone Screws
MH  - *Bone Transplantation/adverse effects
MH  - Cadaver
MH  - Femur/*transplantation
MH  - Humans
MH  - In Vitro Techniques
MH  - Joint Instability/etiology/physiopathology
MH  - Lumbar Vertebrae/physiopathology/*surgery
MH  - Range of Motion, Articular
MH  - Spinal Fusion/adverse effects/*instrumentation
MH  - Transplantation, Homologous
EDAT- 2011/12/27 06:00
MHDA- 2012/04/24 06:00
CRDT- 2011/12/27 06:00
PHST- 2011/12/27 06:00 [entrez]
PHST- 2011/12/27 06:00 [pubmed]
PHST- 2012/04/24 06:00 [medline]
PST - ppublish
SO  - Bull NYU Hosp Jt Dis. 2011;69(4):298-302.