Evaluation of functional outcome after bfx® total hip replacement using a pressure sensitive walkway

B. Duncan X Lascelles, Mila Freire, Simon C. Roe, Venita Depuy, Eric Smith, Denis J Marcellin-Little

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Objective To evaluate stance phase limb use after cementless (BFX ®) total hip replacement (THR) in dogs and to relate postoperative radiographic variables to static bodyweight distribution after surgery. Study Design Prospective clinical study. Animals Dogs (n=35) that had THR. Methods THR was performed using the BFX® THR technique. Postoperative pain management regimens were similar for all dogs. Standing bodyweight distribution (%BWdistrib) was measured using a pressure sensitive walkway and radiographs made before surgery and at 3, 6, and 12 months after surgery. Repeated measures models (with backwards-stepping to obtain the final model) were used for statistical analysis. Results Temporally, %BW distrib to the operated limb increased (P<.0001; normal by 3 months) and decreased to the unoperated limb (P=.0001) and also increased to the pelvic limbs and decreased to the thoracic limbs. %BWdistrib to the unoperated limb was significantly less than the operated limb at 3, 6, and 12 months after surgery. Postoperative canal fill and femur flare were significantly negatively correlated with change in %BWdistrib (estimate=-0.24, P=.0413). Conclusion BFX® THR results in normal %BWdistrib to the operated limb by 3 months after surgery. A greater fill of the proximal femur may be associated with a suboptimal outcome. Clinical Relevance BFX® THR normalizes standing bodyweight distribution dogs with hip osteoarthritis. Objective evaluation of THR outcome and radiographic features may reveal factors that could be improved through changes in prosthesis design or surgical technique.

Original languageEnglish (US)
Pages (from-to)71-77
Number of pages7
JournalVeterinary Surgery
Volume39
Issue number1
DOIs
StatePublished - Jan 1 2010
Externally publishedYes

Fingerprint

Hip Replacement Arthroplasties
hips
limbs (animal)
Extremities
Pressure
surgery
Dogs
dogs
femur
Femur
body weight
Prosthesis Design
prostheses
Hip Osteoarthritis
osteoarthritis
chest
Pain Management
Postoperative Pain
pain
clinical trials

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Evaluation of functional outcome after bfx® total hip replacement using a pressure sensitive walkway. / Lascelles, B. Duncan X; Freire, Mila; Roe, Simon C.; Depuy, Venita; Smith, Eric; Marcellin-Little, Denis J.

In: Veterinary Surgery, Vol. 39, No. 1, 01.01.2010, p. 71-77.

Research output: Contribution to journalArticle

Lascelles, B. Duncan X ; Freire, Mila ; Roe, Simon C. ; Depuy, Venita ; Smith, Eric ; Marcellin-Little, Denis J. / Evaluation of functional outcome after bfx® total hip replacement using a pressure sensitive walkway. In: Veterinary Surgery. 2010 ; Vol. 39, No. 1. pp. 71-77.
@article{f1e2fb954bba4b8f94e80f6eae344591,
title = "Evaluation of functional outcome after bfx{\circledR} total hip replacement using a pressure sensitive walkway",
abstract = "Objective To evaluate stance phase limb use after cementless (BFX {\circledR}) total hip replacement (THR) in dogs and to relate postoperative radiographic variables to static bodyweight distribution after surgery. Study Design Prospective clinical study. Animals Dogs (n=35) that had THR. Methods THR was performed using the BFX{\circledR} THR technique. Postoperative pain management regimens were similar for all dogs. Standing bodyweight distribution ({\%}BWdistrib) was measured using a pressure sensitive walkway and radiographs made before surgery and at 3, 6, and 12 months after surgery. Repeated measures models (with backwards-stepping to obtain the final model) were used for statistical analysis. Results Temporally, {\%}BW distrib to the operated limb increased (P<.0001; normal by 3 months) and decreased to the unoperated limb (P=.0001) and also increased to the pelvic limbs and decreased to the thoracic limbs. {\%}BWdistrib to the unoperated limb was significantly less than the operated limb at 3, 6, and 12 months after surgery. Postoperative canal fill and femur flare were significantly negatively correlated with change in {\%}BWdistrib (estimate=-0.24, P=.0413). Conclusion BFX{\circledR} THR results in normal {\%}BWdistrib to the operated limb by 3 months after surgery. A greater fill of the proximal femur may be associated with a suboptimal outcome. Clinical Relevance BFX{\circledR} THR normalizes standing bodyweight distribution dogs with hip osteoarthritis. Objective evaluation of THR outcome and radiographic features may reveal factors that could be improved through changes in prosthesis design or surgical technique.",
author = "Lascelles, {B. Duncan X} and Mila Freire and Roe, {Simon C.} and Venita Depuy and Eric Smith and Marcellin-Little, {Denis J}",
year = "2010",
month = "1",
day = "1",
doi = "10.1111/j.1532-950X.2009.00607.x",
language = "English (US)",
volume = "39",
pages = "71--77",
journal = "Veterinary Surgery",
issn = "0161-3499",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - Evaluation of functional outcome after bfx® total hip replacement using a pressure sensitive walkway

AU - Lascelles, B. Duncan X

AU - Freire, Mila

AU - Roe, Simon C.

AU - Depuy, Venita

AU - Smith, Eric

AU - Marcellin-Little, Denis J

PY - 2010/1/1

Y1 - 2010/1/1

N2 - Objective To evaluate stance phase limb use after cementless (BFX ®) total hip replacement (THR) in dogs and to relate postoperative radiographic variables to static bodyweight distribution after surgery. Study Design Prospective clinical study. Animals Dogs (n=35) that had THR. Methods THR was performed using the BFX® THR technique. Postoperative pain management regimens were similar for all dogs. Standing bodyweight distribution (%BWdistrib) was measured using a pressure sensitive walkway and radiographs made before surgery and at 3, 6, and 12 months after surgery. Repeated measures models (with backwards-stepping to obtain the final model) were used for statistical analysis. Results Temporally, %BW distrib to the operated limb increased (P<.0001; normal by 3 months) and decreased to the unoperated limb (P=.0001) and also increased to the pelvic limbs and decreased to the thoracic limbs. %BWdistrib to the unoperated limb was significantly less than the operated limb at 3, 6, and 12 months after surgery. Postoperative canal fill and femur flare were significantly negatively correlated with change in %BWdistrib (estimate=-0.24, P=.0413). Conclusion BFX® THR results in normal %BWdistrib to the operated limb by 3 months after surgery. A greater fill of the proximal femur may be associated with a suboptimal outcome. Clinical Relevance BFX® THR normalizes standing bodyweight distribution dogs with hip osteoarthritis. Objective evaluation of THR outcome and radiographic features may reveal factors that could be improved through changes in prosthesis design or surgical technique.

AB - Objective To evaluate stance phase limb use after cementless (BFX ®) total hip replacement (THR) in dogs and to relate postoperative radiographic variables to static bodyweight distribution after surgery. Study Design Prospective clinical study. Animals Dogs (n=35) that had THR. Methods THR was performed using the BFX® THR technique. Postoperative pain management regimens were similar for all dogs. Standing bodyweight distribution (%BWdistrib) was measured using a pressure sensitive walkway and radiographs made before surgery and at 3, 6, and 12 months after surgery. Repeated measures models (with backwards-stepping to obtain the final model) were used for statistical analysis. Results Temporally, %BW distrib to the operated limb increased (P<.0001; normal by 3 months) and decreased to the unoperated limb (P=.0001) and also increased to the pelvic limbs and decreased to the thoracic limbs. %BWdistrib to the unoperated limb was significantly less than the operated limb at 3, 6, and 12 months after surgery. Postoperative canal fill and femur flare were significantly negatively correlated with change in %BWdistrib (estimate=-0.24, P=.0413). Conclusion BFX® THR results in normal %BWdistrib to the operated limb by 3 months after surgery. A greater fill of the proximal femur may be associated with a suboptimal outcome. Clinical Relevance BFX® THR normalizes standing bodyweight distribution dogs with hip osteoarthritis. Objective evaluation of THR outcome and radiographic features may reveal factors that could be improved through changes in prosthesis design or surgical technique.

UR - http://www.scopus.com/inward/record.url?scp=74049156840&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=74049156840&partnerID=8YFLogxK

U2 - 10.1111/j.1532-950X.2009.00607.x

DO - 10.1111/j.1532-950X.2009.00607.x

M3 - Article

C2 - 20210948

AN - SCOPUS:74049156840

VL - 39

SP - 71

EP - 77

JO - Veterinary Surgery

JF - Veterinary Surgery

SN - 0161-3499

IS - 1

ER -