• Journal of Veterinary Science
• /
• 제22권4호
• /
• pp.58.1-58.13
• /
• 2021

Background: The morphometry of the acetabulum is one source of information that assists in the clinical diagnosis of the hip and influences the proper selection of a prosthesis, reducing post-operative complications such as those seen in total hip replacement (THR). However, acetabular parameters in small-breed dogs are rarely reported. Objectives: To investigate acetabular parameters using radiography and computed tomography (CT) in small-breed dogs with Maltese and Shih Tzu dogs used as model breeds. Methods: Standard calibrated, extended hip radiographs and CT images were obtained. Subsequently, acetabular width (AW) in various directions was measured using radiography and CT, whereas acetabular depth (AD) was obtained by CT. Acetabular index (AI) is a ratio calculated from AD and AW. Results: The values of AW and AD were much higher in Shih Tzu than in Maltese dogs. Male Shih Tzus showed higher values of these parameters than females, while sex-based differences in most of the parameters could not be detected in Maltese. Body weight, but not age, influenced AWs and ADs. While AWs and ADs were influenced by several factors, AI was comparable among the assessed factors and between Maltese and Shih Tzu dogs (p = 0.172; 31.42 ± 1.35 and 32.60 ± 1.80, respectively). Also, AI did not vary with breed, sex, or body size. Conclusions: The obtained radiographic and CT acetabular parameters could be useful as guidelines for evaluating the acetabulum of small-breed dogs in clinical practice.

• 한국임상수의학회지
• /
• 제37권3호
• /
• pp.135-140
• /
• 2020

The purpose of this study was to determine the outcome of distal femoral osteotomy for distal femoral varus and medial patellar luxation (MPL) grade 4 in small-breed dogs. Radiographs and medical records were reviewed to collect data and plan the surgery in small-breed dogs with MPL grade 4. Computed tomography (CT) imaging was also performed in cases of severe bone deformities. Signalment, weight, medial patellar luxation and lameness grade, radiographic bone union, complications, pre- and postoperative femoral varus angle, passive range of motion, static weight bearing distribution and visual analogue scale scores were recorded. Thirteen corrective distal femoral osteotomies were performed with ancillary and additional procedures in 9 dogs; 4 dogs had staged bilateral procedures; and four stifles were suspected to have partial or complete rupture of the cranial cruciate ligament. One stifle underwent patellar groove replacement. The mean ± SD pre- and postoperative femoral varus angles were 109.15°± 3.71° and 96.30°± 2.97°, respectively. Significant improvements in passive range of motion, thigh circumference and visual analogue scale (VAS) scores were observed. There was no reluxation of the patella. This study suggests that distal femoral osteotomy with traditional and additional procedures provided satisfactory outcomes in patient healing and functional recovery in small-breed dogs with excessive femoral varus angles.

• 한국임상수의학회지
• /
• 제23권2호
• /
• pp.218-221
• /
• 2006

This report described clinical findings and Magnetic resonance image (MRI) results in two small breed dogs with fibrocartilaginous embolism (FCE). They were admitted with asymmetric acute-onset tetra/paraparesis with superficial pain sensation. In addition, there were no back pain and no progression of clinical signs. Cerebrospinal fluid and laboratory findings were evaluated. MRI revealed a similar focal intramedullary lesion of hyperintensive signals on T2-weighted images. Based on these findings, it was diagnosed as fibrocartilaginous embolic myelopathy in those two dogs.

• 한국임상수의학회지
• /
• 제31권6호
• /
• pp.483-489
• /
• 2014

본 연구는 소형견에서 전 십자인대 단열에서 경골 고평부 평탄 골절단술로 치료된 증례의 예후와 수술적 기법에 대해 보고하고자 한다. 5 kg 미만의 7 마리의 성견에서 편측 전 십자인대 단열에서의 경골 고평부 평탄 골절단술을 이용한 증례를 본 연구에서 이용하였다. 임상적 관찰, 파행 지수, 관절의 운동 범위, 대퇴 둘래 길이를 측정하고 수술 후 부작용에 대해 기록하였다. 모든 환자에서 수술 후 1주에 파행 지수 1을 8주 이후에는 파행 지수 0를 보여 주었다. 수술한 다리의 펴짐각은 다른 쪽 정상 다리와 비교하여 4주에 98.11%로 8주에 99.07%로 12주에 98.73%로 측정되었고 굽힘각은 4주에 98.07%로 8주에 95.88%로 12주에 96.35%로 측정되었다. 수술 후 대퇴 둘레 길이는 다른쪽 정상 다리와 비교하여 4주에 92.95%를 8주에 93.68%를 12주에 95.44%를 보여 주었다. 우리가 수술 한 결과는 이전에 보고된 대형견에서 경골 고평부 평탄 골절단술의 이용 결과들과 비교하여 나쁘지 않은 결과를 보여 주었다. 본 증례를 바탕으로 대형견에서와 같이 소형견에서도 경골 고평부 평탄 골절단술이 전 십자인대 단열에서 성공적으로 사용될 수 있다고 사료된다.

• 한국임상수의학회지
• /
• 제27권2호
• /
• pp.179-182
• /
• 2010

경추 척추척수증(CSM)은 소형 품종 견에서 드물게 발병하는 질병이다. 두 마리의 중성화 하지 않은 페키니즈(체중 5 kg 이하)가 경부 통증과 마비성 보행을 주증으로 내원하였다. 영상 진단을 통해 척추 불안정성에 의한 CSM으로 진단하고, 배쪽 창냄술과 해면질골 이식, 외고정을 조합한 방법을 적용하였다. 수술 후 임상 증상이 현저하게 개선되었고 합병증이나 재발은 없었다. 경추의 척추척수증이 있는 소형 품종 견에서 배쪽 창냄술을 통한 감압과 골 유합을 통한 안정화를 조합한 방법은 효과적인 치료법임을 확인하였다.

• 한국임상수의학회지
• /
• 제40권1호
• /
• pp.31-37
• /
• 2023

Vertebral left atrial size (VLAS) is an important indicator to predict myxomatous mitral valve degeneration (MMVD) in dogs. When the caudal margin of cardiac silhouette and the dorsal margin of caudal vena cava (CdVC) could not be seen exactly, another way to evaluate VLAS is needed. The objective of this study was to assess whether a new modified VLAS (m-VLAS) could be used as an indicator to predict MMVD in 57 small breed dogs with MMVD. The m-VLAS was also used to classify American College of Veterinary Internal Medicine staging groups and left heart enlargement confirmed with echocardiograph (EchoLHE) groups. The m-VLAS was measured as the distance from the ventral aspect of the carina to the dorsal aspect of the intersection of the cardiac silhouette and the farthest LA caudal margin, not the CdVC, followed by drawing the same line beginning at the cranial edge of T4. Based on VLAS values and m-VLAS values measured for dogs with MMVD, correlations between these values and left heart enlargement groups were then evaluated. There were significant differences in both the VLAS and the m-VLAS between EchoLHE groups. The AUC of the ROC curve of the m-VLAS to detect EchoLHE was higher than that of the VLAS. The optimal cutoff value for the m-VLAS was >2.7, which had a higher specificity (86.84%) than the VLAS specificity (71.05%). This study reveals that a new m-VLAS is a more specific indicator than the VLAS for predicting left side heart enlargement in small breed dogs. Therefore, the m-VLAS can be used as a clinically useful radiographic measurement alternative to or better than the VLAS.

• 한국임상수의학회지
• /
• 제34권6호
• /
• pp.429-433
• /
• 2017

The purpose of this study was to find anatomical variation of each small breed dog's dentition for designing more effective dental chews. Small breed dogs were volunteered for dental impressions with dental stone and alginate under tiletamine-zolazepam, tramadol, and medetomidine intravenous anesthesia. Twenty-two criteria were measured to compare dental impressions. Twenty-five dogs (9 Malteses, 8 Miniature Poodles, and 8 Shih-Tzus) were recruited. Statistically, Shih-Tzus had smaller teeth and shorter interdental spaces than those of Maltese and Miniature Poodles. Grossly, the distance between upper teeth and lower teeth was wider in Shih-Tzus. Shih-Tzu had different dental anatomy in comparative to Miniature Poodle and Maltese. It was recommended to design the dental chew considering these differences.

• 한국임상수의학회지
• /
• 제34권1호
• /
• pp.7-12
• /
• 2017

Twelve dogs weighing less than 10 kg underwent unilateral TTO to stabilize the stifle joint with cranial cruciate ligament rupture. Surgical findings, intra-operative and post-operative complications were recorded. Radiographic examinations were performed for 8 weeks following surgery. Postoperative outcome was evaluated using a visual analogue lameness scoring system. Mean preoperative PTA (the angle created by the intersection of the tibial plateau extrapolation line and the patellar tendon) was 103.8 degrees. Mean tibial wedge angle was 16.6 degrees. Mean postoperative PTA was 92.1 degrees. Intraoperatively, fracture through the caudal tibial cortex occurred in all dogs, through the distal tibial crest cortex in 2 dogs, through the lateral tibial cortex in 2 dogs and through the fibula in 1 dog. Four-week postoperative radiographs demonstrated evidence of progressive bone union at osteotomy site and complete unions were identified at 8 week in 10 dogs. All dogs were healed in 11 weeks. Most of dogs revealed weak lameness in 4 weeks and normal ambulation in 8 weeks postoperatively except for only one dog returned in 11 weeks. Despite frequent minor complication, it appears that the TTO is an alternative procedure for management of cranial cruciate ligament rupture in small breed dogs.

• 한국임상수의학회지
• /
• 제32권3호
• /
• pp.231-234
• /
• 2015

본 연구에서는 소형견종에서 전 십자인대 단열과 동적 안정화를 이용한 치료법에서 사용되는 경골 고평부각(the tibial plateau angle)을 측정하였다. 경골 고평부각을 측정하기 위해 성장이 끝난 소형견종 32마리의 사체의 양측 뒷다리를 이용하였다. 성별, 각 양측다리(왼쪽, 오른쪽), 그리고 견종별로 구분하여 경골 고평부각을 평가하였다. 전체 소형견종의 평균 경골 고평부각은 $26.13^{\circ}{\pm}2.33^{\circ}$이었다. 왼쪽 다리와 오른쪽 다리는 각각 $26.00^{\circ}{\pm}2.23^{\circ}$와 $26.26{\pm}2.45$로 측정되었고 성별에 따른 측정에서는 암컷은 $26^{\circ}.22{\pm}2.80^{\circ}$로 수컷은 $26.01^{\circ}{\pm}1.57^{\circ}$로 평가 되었다. 견종별로는 말티즈는 $26.06^{\circ}{\pm}2.96^{\circ}$로 푸들은 $25.21^{\circ}{\pm}1.38^{\circ}$로 시추는 $26.65^{\circ}{\pm}2.96^{\circ}$로 요크셔 테리어는 $26.27^{\circ}{\pm}1.61^{\circ}$로 측정되었다. 모른 측정치의 확률적 유의적 차이는 없었다. 본 연구에서 측정된 소형견의 경골 고평부각은 전 십자인대의 병적 상태평가와 수술 과정에서 중요한 정보를 제공할 수 있다고 사료된다.

• 한국임상수의학회지
• /
• 제36권2호
• /
• pp.93-97
• /
• 2019

Healing of 48 cases of radial fractures in small breed dogs treated with acrylic pin external fixation was evaluated retrospectively to investigate the factors affecting the healing of radial fractures. The mean age of the subjects was 15.02 months, the mean body weight was 3.48 kg, and the mean maximum length of the radius (MLR) was 90.77 mm. External skeletal fixation frames type 1a, 2a, and 3 were used; among them type 2a was used most frequently (75%). The mean time to clinical union (TCU) was 67.17 days, and the success rate was 95.8%. Age, bodyweight, MLR, and occurrence of complications increased TCU significantly. Among complications, pin loosening, swelling of the operated forelimb tissue for more than 2 weeks, and coexistence of two or more complications increased TCU significantly (p < 0.05). There was no relationship between location of the fracture and TCU. The results of this study may be useful to predict the prognosis of radial fractures in small dogs.