• 한국임상수의학회지
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• 제39권3호
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• pp.93-99
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• 2022

The present study was performed to compare cranial tibial wedge osteotomy (CTWO) and tibial plateau leveling osteotomy (TPLO) through radiographic evaluation. The experiment was conducted with five cadaver dogs [mean (± SD) weight, 32.9 ± 4.1 kg; mean (± SD) age, 6 ± 2 years; three males and two females] euthanized for reasons unrelated to this study. The cadaver dogs consisted of German Shepherd (n = 3), Belgian Malinois (n = 1), and mixed breed (n = 1). CTWO and TPLO were carried out by the standard surgical method. Radiographic evaluation was performed by comparing several factors, including the flexion and extension angles, the anatomical mechanical axis angle (AMA-angle), tibial length, patellar height measurement using the Labelle-Laurin method, mechanical medial proximal tibial angle (mMPTA), mechanical medial distal tibial angle (mMDTA), and frontal plane alignment (FPA). Both the CTWO and the TPLO groups showed significantly increased flexion angles after surgery. Only the CTWO group had significantly increased extension angle. Although both groups showed significant decreases in the AMA-angle, the mechanical axis moved cranially against the anatomical axis only in the CTWO group. The patellar height was significantly lowered in the CTWO group. No significant differences were found in mMPTA, mMDTA, or FPA. In conclusion, radiographic comparison revealed more changes in CTWO group than in TPLO group.

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2008년도 추계학술대회
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• pp.177-177
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• 2008

• 한국임상수의학회지
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• 제41권4호
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• pp.228-233
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• 2024

A 7-month-old, 5.2 kg spayed female Norwegian Forest cat was referred for chronic, non-weight-bearing lameness in the left pelvic limb that has been present since 3 months old and has not responded to medical conservative therapy. Based on orthopedic and radiographic examination, concomitant cranial cruciate ligament rupture (CCLR) and medial patellar luxation (MPL) of the left hind limb were diagnosed. In this case, cranial tibial wedge osteotomy (CTWO) was adopted to overcome side effect of performing other osteotomy techniques such as impairing the growth plates in the proximal tibia. Additionally, patient-specific surgical guides were applied to improve surgical accuracy. The patient showed an improvement in weight-bearing scores and gait condition during follow-up periods without complications. In our case, CTWO combined with corrective surgery for MPL can be used to treat concomitant CCLR and MPL without damaged on the growth plates and shows good clinical outcomes in an immature cat. Furthermore, the use of a surgical guide facilitates surgical procedures that minimize surgical error and increase surgical precision. This case study suggests that CTWO assisted by patient-specific surgical guides may be a viable surgical option for treating an immature cat with concomitant CCLR and MPL.

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2007년도 춘계학술대회
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• pp.106-106
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• 2007

• 한국임상수의학회지
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• 제34권1호
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• pp.7-12
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• 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
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• 제29권6호
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• pp.455-459
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• 2012

뒷다리 파행 병력을 보이는 아홉 마리 개가 건국대학교 부속 동물병원과 우성 동물병원에 내원하였다. 신체검사에서 아홉 마리 모두 지속적 디딤 파행, 근위축, 통증을 동반한 전방 밀림 증상을 보였다. 경골 압박 자세를 취한 측면 방사선 사진에서 경골 결절의 전방 밀림 증상을 확인하였다. 손상 된 무릎 관절은 각각 오른쪽 7마리, 왼쪽 2 마리에서 확인 되었으며 전방 십자인대 결손 치료를 위해 TightRope 방법이 실시 되었다. 인대 복원을 위한 봉합사로 polyester와 nylon이 각각 3마리와 6마리에서 사용 되었으며 봉합사 두께는 0.8 mm (n = 2), 0.9 mm (n = 4), 1.1 mm (n = 2), and $1.1mm{\times}2$ 가닥 (n = 1)이 사용 되었다. 평균 (${\pm}SD$) 수술 시간, 수술 전 후 전방 밀림 현상은 각각 $48.3{\pm}8.5$ 분 (35-60 분), $8.6{\pm}1.6$ mm (7-12 mm), $1.2{\pm}1.0$ mm (0-3 mm)로 확인 되었다. 수술 직후 방사선 촬영에서 아홉마리 모두 경골 결절 전방 밀림 현상은 확인 되지 않았다. 여덟 마리에서 수술 후 8주 내 정상 보행을 확인할 수 있었으며 1 마리에서 수술 후 2 주 경골 결절 전방 밀림 현상과 디딤 파행 재발을 확인하였다. 재 수술 과정에서 외과용 단추가 부러진 것을 확인 하였고 tibial wedge osteotomy를 실시 하였다. 수술 시간, 부작용, 관절 안정성, 기능 회복 면에서 전방 십자인대 결손 치료를 위한 TightRope 방법이 효과적임을 확인 하였다.