Cabon Quentin, Plante Jérôme, Gatineau Matthieu
Surgery Department, VetAgroSup, Veterinary Campus of Lyon, Marcy l'Etoile, France.
DMV Veterinary Centre, Montréal (Lachine), Québec, Canada.
JFMS Open Rep. 2015 Jul 27;1(2):2055116915597237. doi: 10.1177/2055116915597237. eCollection 2015 Jul-Dec.
Three cats, Siamese or Siamese cross, were presented with a chronic thoracic limb weightbearing lameness. Previous anti-inflammatory administrations were unable to improve lameness consistently in the three cats. Two of the three cats had undergone onychectomy several years before presentation. A permanent flexion of the proximal interphalangeal joint of one or more digits, associated with a difficult and painful extension of the proximal interphalangeal joint, was noticed during orthopedic examination. A digital flexor tendon contracture was suspected and confirmed with radiographic examination. Surgical exploration was then performed. For all cats, treatment consisted of a tenectomy or tenotomy of the superficial and deep digital flexor tendons in order to release the contracture. The three cats responded well to the surgical treatment and became sound around 2-4 weeks after surgery.
Digital flexor tendon contracture is rarely reported as a cause of lameness in cats. It should be considered in a differential diagnosis of feline lameness whenever onychectomy has been performed in the past. The precise etiology that explains this tendon contracture is unknown, but trauma or breed predisposition could represent potential causes.
三只暹罗猫或暹罗猫杂交猫出现慢性胸肢负重性跛行。先前的抗炎治疗未能使这三只猫的跛行持续改善。三只猫中有两只在就诊前数年接受过爪切除术。在骨科检查中发现一个或多个趾的近端指间关节永久性屈曲，伴有近端指间关节伸展困难和疼痛。怀疑是指屈肌腱挛缩，并通过放射学检查得到证实。随后进行了手术探查。对所有猫的治疗包括切除或切断浅、深指屈肌腱以解除挛缩。这三只猫对手术治疗反应良好，术后约2 - 4周恢复正常。
指屈肌腱挛缩作为猫跛行的原因很少被报道。过去进行过爪切除术后，在猫跛行的鉴别诊断中应考虑到这一点。解释这种肌腱挛缩的确切病因尚不清楚，但创伤或品种易感性可能是潜在原因。
