Header

UZH-Logo

Maintenance Infos

Passive Pneumatic Stabilization Device for Assisting in Reduction of Femoral Shaft Fractures


Matthews, Felix; Neuhaus, Valentin; Schmucki, Daniel; Schwyn, Ronald; Gross, Thomas; Regazzoni, Pietro; Trentz, Otmar; Messmer, Peter (2005). Passive Pneumatic Stabilization Device for Assisting in Reduction of Femoral Shaft Fractures. European Journal of Trauma, 31(6):568-574.

Abstract

During treatment of femoral shaft fractures, not only the actual fracture reduction but also the retention of the achieved reduction is essential. Substantial forces may apply to the bone fragments, due to multidirectional muscular contraction. Furthermore, forces from manipulation of one bone fragment may be transferred over the soft tissues onto the other fragments, thus hindering accurate fracture reduction. Once a sufficient reduction has been achieved, this position must be retained whilst definitive internal fixation is performed. Conventional methods comprise mounting patients on a traction table and applying manual distraction or employing special distraction devices, such as the AO distractor device. These approaches, however, only insufficiently stabilize both main fragments. For example, on the traction table the proximal femoral fragment can pivot around the hip joint thus complicating precise reduction. A novel pneumatic stabilization device to assist surgeons during operative procedures is described. This passive holding device "Passhold” connects to one main fragment through a minimally invasive bone interface and statically locks the fragment's position. Thereafter, only the other main fragment is manipulated to achieve reduction. Mutual interference of the reciprocal fragment positions, due to soft-tissue force transfer during manipulation, is avoided. The authors examined the stability of the novel retention device on a test rig and proved its functionality under sterile settings using cadaver tests. It is concluded that this device largely facilitates the operative procedure in femoral shaft fractures, is sufficiently stable and ergonomically suitable for intraoperative deployment

Abstract

During treatment of femoral shaft fractures, not only the actual fracture reduction but also the retention of the achieved reduction is essential. Substantial forces may apply to the bone fragments, due to multidirectional muscular contraction. Furthermore, forces from manipulation of one bone fragment may be transferred over the soft tissues onto the other fragments, thus hindering accurate fracture reduction. Once a sufficient reduction has been achieved, this position must be retained whilst definitive internal fixation is performed. Conventional methods comprise mounting patients on a traction table and applying manual distraction or employing special distraction devices, such as the AO distractor device. These approaches, however, only insufficiently stabilize both main fragments. For example, on the traction table the proximal femoral fragment can pivot around the hip joint thus complicating precise reduction. A novel pneumatic stabilization device to assist surgeons during operative procedures is described. This passive holding device "Passhold” connects to one main fragment through a minimally invasive bone interface and statically locks the fragment's position. Thereafter, only the other main fragment is manipulated to achieve reduction. Mutual interference of the reciprocal fragment positions, due to soft-tissue force transfer during manipulation, is avoided. The authors examined the stability of the novel retention device on a test rig and proved its functionality under sterile settings using cadaver tests. It is concluded that this device largely facilitates the operative procedure in femoral shaft fractures, is sufficiently stable and ergonomically suitable for intraoperative deployment

Statistics

Citations

Dimensions.ai Metrics

Altmetrics

Downloads

29 downloads since deposited on 24 Oct 2018
20 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, not_refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Health Sciences > Surgery
Language:English
Date:1 November 2005
Deposited On:24 Oct 2018 12:23
Last Modified:15 Apr 2021 14:53
Publisher:Urban & Vogel
ISSN:1615-3146
OA Status:Green
Publisher DOI:https://doi.org/10.1007/s00068-005-2047-3

Download

Green Open Access

Download PDF  'Passive Pneumatic Stabilization Device for Assisting in Reduction of Femoral Shaft Fractures'.
Preview
Content: Published Version
Language: English
Filetype: PDF (Nationallizenz 142-005)
Size: 338kB
View at publisher