Gait Analysis Following Pelvic Osteotomy

SummaryA retrospective case series study was done to determine the long-term outcome of operations upon dogs treated for canine hip dysplasia by means of a triple pelvic osteotomy (TPO). Twentyfour dogs with bilateral hip dysplasia, that received a unilateral TPO between January 1988 and June 1995, were re-examined at the Ontario Veterinary College. The assessment included physical, orthopedic and lameness examinations, standard blood work, pelvic radiographs and force plate gait analysis. They were compared to bilaterally dysplastic dogs that had not been treated, and also to normal dogs. Force plate data analysis demonstrated a significant increase in peak vertical force (PVF) and mean vertical force over stance (MVF) in the limb that underwent surgical correction by means of a TPO, when compared to the unoperated hip. It was determined that performing a unilateral TPO on a young dysplastic dog resulted in greater forces and weight bearing being projected through the TPO corrected limb when compared to the unoperated limb.Dogs with bilateral hip dysplasia treated with a unilateral triple pelvic osteotomy (TPO) were assessed by force plate gait analysis, radiographs and orthopedic examination. There was a significant increase in hip Norberg angles over time, although degenerative changes did progress. Limbs that had been operated upon had significantly greater peak and mean ground reaction forces than limbs that had not received an operation.

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Sensitivity of gait analysis to detect motor phenotype in pre-manifest and manifest Huntington's disease – cross-sectional results from the TRACK-HD Study

Aktuelle Neurologie ◽

10.1055/s-0029-1238520 ◽

2009 ◽

Vol 36 (S 02) ◽

Author(s):

S Rohm ◽

N Bechtel ◽

H Beckmann ◽

A Sturrock ◽

S van den Bogaard ◽

...

Keyword(s):

Gait Analysis ◽

Huntington's Disease ◽

Huntington’S Disease ◽

Cross Sectional ◽

Motor Phenotype

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Gait Analysis

Physikalische Medizin Rehabilitationsmedizin Kurortmedizin ◽

10.1055/s-0030-1267628 ◽

2010 ◽

Vol 20 (05) ◽

Author(s):

A Delarque

Keyword(s):

Gait Analysis

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Evaluation of Sacroiliac Wedge Rotation to Increase Acetabular Ventroversion

Veterinary and Comparative Orthopaedics and Traumatology ◽

10.1055/s-0038-1632486 ◽

1999 ◽

Vol 12 (04) ◽

pp. 173-177 ◽

Cited By ~ 2

Author(s):

R. L. Aper ◽

M. D. Brown ◽

M. G. Conzemius

Keyword(s):

Hip Joint ◽

Hip Dysplasia ◽

Clinical Effect ◽

Pelvic Osteotomy ◽

Alternative Method ◽

Angular Measurements ◽

Si Joint ◽

In Vivo Effects ◽

Canine Hip Dysplasia

SummaryTreatment of canine hip dysplasia (CHD) via triple pelvic osteotomy (TPO) is widely accepted as the treatment that best preserves the existing hip joint. TPO, however, has several important disadvantages. In an effort to avoid some of the difficulties associated with TPO an alternative method of creating acetabular ventroversion (AW) was sought. The purpose of this study was to explore the effects of placement of a wedge in the sacroiliac (SI) joint on A W and to compare this to the effect of TPO on A W . On one hemipelvis a 30° pelvic osteotomy plate was used for TPO. The contralateral hemipelvis had a 28° SI wedge inserted into the SI joint. Pre- and postsurgical radiographs of each pelvis were taken and the angular measurements were recorded. On average, the 28° SI wedge resulted in 20.9° of A W, the 30° canine pelvic osteotomy plate resulted in 24.9° A W . Significant differences were not found (p >0.05) between the two techniques. Sacroiliac wedge rotation effectively creates A W and has several theoretical advantages when compared to TPO. The in vivo effects of sacroiliac wedge rotation should be studied in order to evaluate the clinical effect of the technique.Sacroiliac wedge rotation was tested as an alternative method to increase the angle of acetabular ventroversion. This technique effectively rotated the acetabulum and has several theoretical advantages when compared to triple pelvic osteotomy.

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Pelvic Canal Narrowing Caused by Triple Pelvic Osteotomy in the Dog

Veterinary and Comparative Orthopaedics and Traumatology ◽

10.1055/s-0038-1633130 ◽

1994 ◽

Vol 07 (03) ◽

pp. 110-113 ◽

Cited By ~ 6

Author(s):

D. L. Holmberg ◽

M. B. Hurtig ◽

H. R. Sukhiani

Keyword(s):

Postoperative Complications ◽

Pelvic Osteotomy ◽

Cross Sectional Area ◽

Sectional Area ◽

Cross Sectional ◽

Canal Width ◽

Operative Complications ◽

Post Operative Complications

SummaryDuring a triple pelvic osteotomy, rotation of the free acetabular segment causes the pubic remnant on the acetabulum to rotate into the pelvic canal. The resulting narrowing may cause complications by impingement on the organs within the pelvic canal. Triple pelvic osteotomies were performed on ten cadaver pelves with pubic remnants equal to 0, 25, and 50% of the hemi-pubic length and angles of acetabular rotation of 20, 30, and 40 degrees. All combinations of pubic remnant lengths and angles of acetabular rotation caused a significant reduction in pelvic canal-width and cross-sectional area, when compared to the inact pelvis. Zero, 25, and 50% pubic remnants result in 15, 35, and 50% reductions in pelvic canal width respectively. Overrotation of the acetabulum should be avoided and the pubic remnant on the acetabular segment should be minimized to reduce postoperative complications due to pelvic canal narrowing.When performing triple pelvic osteotomies, the length of the pubic remnant on the acetabular segment and the angle of acetabular rotation both significantly narrow the pelvic canal. To reduce post-operative complications, due to narrowing of the pelvic canal, overrotation of the acetabulum should be avoided and the length of the pubic remnant should be minimized.

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