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Inferior fixation with a new pin design for external fixation: A randomized study in 50 patients operated on by the hemicallotasis technique.

Toksvig-Larsen, Sören LU and W-Dahl, Annette LU (2008) In Acta Orthopaedica 79(1). p.48-52
Abstract
Background and purpose Tibial osteotomy by the hemicallotasis technique (HCO) requires strong pin fixation. We compared pin fixation in HCO using a new self-drilling XCaliber pin (Orthofix) with optimized thread and tip design, with the commonly used standard pin (Orthofix). Patients and methods 50 patients, mean age 51 (35-66) years, to be treated by HCO were randomized to standard pins or XCaliber pins. In the metaphyseal bone, hydroxyapatite-coated (HA-coated) pins were used in both types of pins. In the diaphyseal bone, non-coated pins were used. The torque forces for insertion and extraction (in Nm) were measured. Results The insertion torque was higher for both the proximal and distal standard pins (2.1 Nm (SD 0.9) and 7.0 Nm (1.3),... (More)
Background and purpose Tibial osteotomy by the hemicallotasis technique (HCO) requires strong pin fixation. We compared pin fixation in HCO using a new self-drilling XCaliber pin (Orthofix) with optimized thread and tip design, with the commonly used standard pin (Orthofix). Patients and methods 50 patients, mean age 51 (35-66) years, to be treated by HCO were randomized to standard pins or XCaliber pins. In the metaphyseal bone, hydroxyapatite-coated (HA-coated) pins were used in both types of pins. In the diaphyseal bone, non-coated pins were used. The torque forces for insertion and extraction (in Nm) were measured. Results The insertion torque was higher for both the proximal and distal standard pins (2.1 Nm (SD 0.9) and 7.0 Nm (1.3), respectively) than for the XCaliber pins (1.3 Nm (0.8) and 3.6 Nm (1.4)). The extraction torque force was higher for the proximal standard pins (4.3 Nm (3.1)) than for the proximal XCaliber pins (1.5 Nm (1.7)) (p < 0.001). The extraction torque for the distal standard pins was 1.9 Nm (2.0) and for the distal XCaliber pins it was 1.4 Nm (1.1). Interpretation The commonly used standard pin gives stronger fixation during the treatment of HCO. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Orthopaedica
volume
79
issue
1
pages
48 - 52
publisher
Taylor & Francis
external identifiers
  • PMID:18283572
  • WOS:000253335400008
  • Scopus:39449106425
ISSN
1745-3682
DOI
10.1080/17453670710014752
language
English
LU publication?
yes
id
07745069-b1f6-4b11-bb66-a7c400f7f316 (old id 1041762)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/18283572?dopt=Abstract
date added to LUP
2008-03-06 14:21:05
date last changed
2016-10-30 04:34:21
@misc{07745069-b1f6-4b11-bb66-a7c400f7f316,
  abstract     = {Background and purpose Tibial osteotomy by the hemicallotasis technique (HCO) requires strong pin fixation. We compared pin fixation in HCO using a new self-drilling XCaliber pin (Orthofix) with optimized thread and tip design, with the commonly used standard pin (Orthofix). Patients and methods 50 patients, mean age 51 (35-66) years, to be treated by HCO were randomized to standard pins or XCaliber pins. In the metaphyseal bone, hydroxyapatite-coated (HA-coated) pins were used in both types of pins. In the diaphyseal bone, non-coated pins were used. The torque forces for insertion and extraction (in Nm) were measured. Results The insertion torque was higher for both the proximal and distal standard pins (2.1 Nm (SD 0.9) and 7.0 Nm (1.3), respectively) than for the XCaliber pins (1.3 Nm (0.8) and 3.6 Nm (1.4)). The extraction torque force was higher for the proximal standard pins (4.3 Nm (3.1)) than for the proximal XCaliber pins (1.5 Nm (1.7)) (p &lt; 0.001). The extraction torque for the distal standard pins was 1.9 Nm (2.0) and for the distal XCaliber pins it was 1.4 Nm (1.1). Interpretation The commonly used standard pin gives stronger fixation during the treatment of HCO.},
  author       = {Toksvig-Larsen, Sören and W-Dahl, Annette},
  issn         = {1745-3682},
  language     = {eng},
  number       = {1},
  pages        = {48--52},
  publisher    = {ARRAY(0x925cd30)},
  series       = {Acta Orthopaedica},
  title        = {Inferior fixation with a new pin design for external fixation: A randomized study in 50 patients operated on by the hemicallotasis technique.},
  url          = {http://dx.doi.org/10.1080/17453670710014752},
  volume       = {79},
  year         = {2008},
}