Computed tomographic evaluation of changes of the hip joint following juvenil pubic symphisiodesis (JPS) in dogs

In this study, the dogs (8) scanned with computed tomography preoperatively and 1st 3rd and 6th months postoperatively and changes of the hip joint following JPS were evaluated. For this purpose, the dogs choosen from ADU Surgery Clinic, Faculty of Veterinary Medicine, Clinics patients that are radiological examinated and determined laxity in the hip joint which decided to implementation of JPS. Dogs (1 male, 7 female) were 4-6 months old, mongrel and non-orthopedic problems but the laxity in the hip joint. Following one day fasting period, dogs were anaesthetised by xylazine (Alfazyne®, Ege-Vet) and ketamine (Alfamine®, Ege-Vet) after atropine (Atropin®, Vetaş) injection and then scanned with computed tomography in general anesthesia. Scans were made in supine (ventro-dorsal) and weight bearing positions. From the results of the scans that obtained in general anesthesia, Measurements Related to Acetabulum (AI Angle, AAI, Acetabular Indeks, DKU, VKU, HTEA, AA), Measurements Related to Caput Femoris-Acetabulum (Lateral Coverage, AcetAV, VASA, DASA, HASA, DLS, DAKA, LCEA, DCEA, VCEA, MUI, CPC) and Measurements Related to Collum Femoris (FIA, FAA) have been measured and calculated respectively. As a result, computed tomography provides very valuable datas for the evaluation of joint morphometry in the process of diagnosis and treatment of hip dysplasia in dogs. Besides that, AIA (preoperatively 20,24±1,14 (11,9-26,2), postoperatively 1st month 21,82±0,65 (16,1-25,3), postoperatively 3rd month 22,61±1,10 (16,1-25,3), postoperatively 6th month 20,93±0,87 (15,6-24,7)), AI (preoperatively 40,18±1,49 (31,65-47,74), postoperatively 1st month 43,69±1,34 (36,71-51,24), postoperatively 3rd month 46,29±1,21 (37,08-52), postoperatively 6th month 41,34± 1,60 (33,31-50,3)), acetabular depth (preoperatively 0,78±0,03 (0,62-0,96), postoperatively 1st month 0,87±0,04 (0,65-1,04), postoperatively 3rd month 0,91±0,03 (0,74-1,05), postoperatively 6th month 0,82±0,04 (0,6-1,06)), AAI (preoperatively 91,53±1,66 (83,2-103,3), postoperatively 1st month 88,64±0,71 (85-95,1), postoperatively 3rd month 88,83±0,49 (84,9-91,3), postoperatively 6th month 88,24±0,60 (85,1-93,3)), DCEA (preoperatively 8,35±1,12 (1,4-17), postoperatively 1st month 5,12±0,84 (1,6-11,1), postoperatively 3rd month 5,54±0,71 (1,5-11,6), postoperatively 6th month 4,62±0,75 (1,4-10,5)), VCEA (preoperatively 39,98±1,27 (31,3-51,2), postoperatively 1st month 38,46±1,83 (25,9-49,1), postoperatively 3rd month 35,01±1,9 (20,9-44,8), postoperatively 6th month 36,19±1,02 (32,2-45,7)), DARA (preoperatively 17,75±1,98 (5,8-30,1), postoperatively 1st month 14,89±1,32 (8,2-26,4), postoperatively 3rd month 15,26±1,04 (7,1-22,2), postoperatively 6th month 16,99±1,49 (5,3-25,8)) and HTEA (preoperatively 17,24±1,45 (9,1-29,8), postoperatively 1st month 16,31±1,02 (9,5-22,6), postoperatively 3rd month 17,66±0,91 (9,5-26,9), postoperatively 6th month 19,28±1,04 (14,2-27,2)) reported as important parameters. Also we decided that the JPS has prevented/decelerated the dysplasia at early stage of hip laxity in dogs. Key Words: Computed tomography, Dog, Hip dysplasia, Juvenil pubic symphisiodesis.