Kalayci Göknil, Binici Cagri, Tünsmeyer Julia, Stein Silke, Al Aiyan Ahmad, Müller Kerstin, Brunnberg Leo
Goeknil Kalayci, Kleintierklinik, Fachbereich Veterinärmedizin, Freie Universität Berlin, Oertzenweg 19b, 14163 Berlin, Germany, Email:
Tierarztl Prax Ausg G Grosstiere Nutztiere. 2017 Apr 19;45(2):112-120. doi: 10.15653/TPG-160197. Epub 2017 Jan 11.
This case study presents two female dwarf zebu calves with permanent bilateral flexion of the stifle joint secondary to bilateral congenital lateral patellar luxation. The patella could be manually repositioned bilaterally in the first calf (14 days old), but re-luxated immediately with release of manual pressure (luxation grade III). In the second calf (28 days old) both patellae were permanently luxated laterally (grade IV). The right and left stifles of each calf were operated in a staged procedure with approximately 14 days between surgery of the two sides. While a lateral release and a medial imbrication were sufficient for correction in the left stifle of the younger calf, a trochlear wedge resection was required in the other three stifle joints with hypo- to aplastic trochleas in order to stabilize the patella. Postoperatively each stifle was immobilized for 10 days with a cast. The younger calf regained full function of the hind limbs during the complete gait cycle in walk and in trot one month after the procedure. The older calf regained full function in the hind limbs in walk but in trot there was some degree of lameness due to a reduced extension of approximately 20°.
本病例研究展示了两头雌性侏儒泽布牛犊，因双侧先天性外侧髌骨脱位继发双侧膝关节永久性屈曲。在第一头犊牛（14日龄）中，双侧髌骨可通过手法复位，但在松开手动压力后立即再次脱位（脱位分级为III级）。在第二头犊牛（28日龄）中，双侧髌骨均永久性外侧脱位（IV级）。每头犊牛的左右膝关节均采用分期手术，两侧手术间隔约14天。对于较年幼犊牛的左膝关节，外侧松解和内侧叠瓦成形术足以矫正，但在另外三个滑车发育不全至发育不良的膝关节中，需要进行滑车楔形切除术以稳定髌骨。术后每个膝关节用石膏固定10天。较年幼的犊牛在术后一个月的行走和小跑完整步态周期中恢复了后肢的全部功能。较年长的犊牛在行走时后肢恢复了全部功能，但在小跑时由于伸展减少约20°而出现一定程度的跛行。
