TY - JOUR
T1 - Comparison of Body Weight Distribution, Peak Vertical Force, and Vertical Impulse as Measures of Hip Joint Pain and Efficacy of Total Hip Replacement
AU - Seibert, Rachel
AU - Marcellin-Little, Denis J.
AU - Roe, Simon C.
AU - Depuy, Venita
AU - Lascelles, B. Duncan X.
PY - 2012/5
Y1 - 2012/5
N2 - Objective: To determine whether there is a difference between the ability of peak vertical force (PVF), vertical impulse (VI), and percentage body weight distribution (%BWdist) in differentiating which leg is most affected by hip joint pain before total hip replacement (THR) surgery, and for measuring changes in limb use after THR surgery. Study Design: Prospective clinical study. Animals: Dogs (n = 47). Methods: Ground reaction force (GRF) data were collected using a pressure-sensitive walkway the day before THR surgery and at ~3, 6, and 12 months postoperatively. PVF and VI expressed as a percentage of body weight (%PVF, %VI), and %BWdist were recorded. Regression models performed separately for each outcome were used for statistical analysis. Results: When comparing limb use between the affected limb (AP) and the nonaffected limb (NP) preoperatively, differences between limbs were statistically significant when evaluated using PVF (P = .023), VI (P = .010), and %BWdist (P = .012). When evaluating the magnitude of absolute and percentage change difference in AP limb use preoperatively versus postoperatively, differences were statistically significant when evaluated using PVF (P < .001 and P = .001, respectively), VI (P = .001 and P < .001) and %BWdist (P < .001 and P < .001). Conclusion: There appeared to be no difference in the sensitivity of VI, PVF, and %BWdist for evaluating limb use before and after THR.
AB - Objective: To determine whether there is a difference between the ability of peak vertical force (PVF), vertical impulse (VI), and percentage body weight distribution (%BWdist) in differentiating which leg is most affected by hip joint pain before total hip replacement (THR) surgery, and for measuring changes in limb use after THR surgery. Study Design: Prospective clinical study. Animals: Dogs (n = 47). Methods: Ground reaction force (GRF) data were collected using a pressure-sensitive walkway the day before THR surgery and at ~3, 6, and 12 months postoperatively. PVF and VI expressed as a percentage of body weight (%PVF, %VI), and %BWdist were recorded. Regression models performed separately for each outcome were used for statistical analysis. Results: When comparing limb use between the affected limb (AP) and the nonaffected limb (NP) preoperatively, differences between limbs were statistically significant when evaluated using PVF (P = .023), VI (P = .010), and %BWdist (P = .012). When evaluating the magnitude of absolute and percentage change difference in AP limb use preoperatively versus postoperatively, differences were statistically significant when evaluated using PVF (P < .001 and P = .001, respectively), VI (P = .001 and P < .001) and %BWdist (P < .001 and P < .001). Conclusion: There appeared to be no difference in the sensitivity of VI, PVF, and %BWdist for evaluating limb use before and after THR.
UR - http://www.scopus.com/inward/record.url?scp=84861332396&partnerID=8YFLogxK
U2 - 10.1111/j.1532-950X.2012.00957.x
DO - 10.1111/j.1532-950X.2012.00957.x
M3 - Article
C2 - 22548436
AN - SCOPUS:84861332396
SN - 0161-3499
VL - 41
SP - 443
EP - 447
JO - Veterinary Surgery
JF - Veterinary Surgery
IS - 4
ER -