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Vertical forces assessment according to radiographic hip grade in German shepherd dogs
Author(s) -
Souza A. N. A.,
Pinto A. C. B. C. F.,
Marvulle V.,
Matera J. M.
Publication year - 2015
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/jsap.12294
Subject(s) - medicine , hip dysplasia , radiography , lameness , ground reaction force , clinical significance , orthodontics , surgery , nuclear medicine , kinematics , physics , classical mechanics
OBJECTIVE To investigate the correlation between radiographic hip grade and kinetic parameters in German shepherd dogs. METHODS Dogs were distributed into five groups of eight dogs each according to hip grade (A, B, C, D or E). Dogs were submitted to clinical evaluation and kinetic analysis. Five valid passages were analysed using data collected from a pressure walkway. Peak vertical force, vertical impulse and stance phase duration were evaluated at velocity (1 · 2 to 1 · 4 m/s) ±0 · 1 m/s 2 acceleration. Kinetic data between groups were compared. RESULTS In pelvic limbs, mean peak vertical force decreased progressively from grade C (mild) to grade E (severe) hip dysplasia. The vertical impulse was decreased in groups C and E compared to groups A, B and D; stance phase duration did not differ significantly between groups. CLINICAL SIGNIFICANCE Mean peak vertical force was lower in dogs with severe hip dysplasia compared with mildly dysplastic dogs. These results suggest that hip dysplasia degree can affect lameness severity.