■一只4个月大的雄性ShihTzu犬(病例1)和一只11个月大的雌性DevonRex猫(病例2)被转诊到专科兽医医院,以评估右胸la行和前肢远端的生长异常。
■在两种情况下的患肢中都注意到非负重跛行和活动范围减小。案例1有一个平庸的立场,第一个和第二个手指之间的裂隙间隔向上延伸到前臂的远端三分之一。触诊时没有疼痛,患肢短于对侧。射线照相检查显示掌骨I和II之间的裂隙分离,和腕骨融合(I,II,III),桡骨远端自由终止并连接到第一掌骨。病例2掌骨内侧有一个小裂痕III。肢体始终被绑架,并有明显的腕内翻。肢体从未用于承重。影像学检查显示掌骨II发育不全,掌骨I和III分离。桡骨和尺骨分离,桡骨头在肘部没有正常铰接,导致明显的肘部不一致。
■在两种情况下都是Ectrodactyly。
■在两种情况下都进行了桡骨截肢,然后进行了尺腕关节固定术。术后1年(病例1)和10周(病例2)的随访评价显示关节融合术令人满意,业主满意度,和良好的临床结果。
■Ectrodactyly是一种罕见的先天性前肢畸形,具有异质性,需要一个个性化的治疗计划。这是在小动物中报道的首例病例,这些小动物被成功地用尺骨关节固定术治疗。因此,该病例系列提供了支持这种异质先天性畸形的治疗选择的证据。
UNASSIGNED: A 4-month-old male Shih Tzu dog (Case 1) and an 11-month-old female Devon Rex cat (Case 2) were referred to specialist veterinary hospitals for evaluation of right thoracic lameness and growth abnormality in the distal aspect of the forelimb.
UNASSIGNED: Non-weight-bearing lameness and decreased range of motion were noted in the affected limbs of both cases. Case 1 had a plantigrade stance, and a cleft separation between the first and second digits extending upwards to the distal third of the antebrachium. There was no pain on palpation, and the affected limb was shorter than the contralateral. Radiographic examination revealed cleft separation between metacarpal bones I and II, and carpal bone fusion (I, II, III), and the distal radius ended freely and was attached to the first metacarpal bone.Case 2 had a small cleft medial to metacarpal III. The limb was consistently held in abduction and had marked carpal varus. The limb had never been used for weight bearing. Radiographic examination showed agenesis of metacarpal bone II and separation of metacarpals I and III. The radius and ulna were separated and the radial head did not articulate normally at the elbow, leading to marked elbow incongruity.
UNASSIGNED: Ectrodactyly in both cases.
UNASSIGNED: Amputation of the radius followed by ulnocarpal arthrodesis were performed in both cases. Follow-up evaluations up to 1 year (Case 1) and 10 weeks (Case 2) after surgery indicated satisfactory arthrodesis fusion, owner satisfaction, and a good clinical outcome.
UNASSIGNED: Ectrodactyly is a rare congenital deformity of the forelimb with a heterogeneous character, requiring an individualised treatment plan. These are the first cases reported in the literature of ectrodactyly in small animals that were treated successfully with ulnocarpal arthrodesis. This case series therefore provides evidence in support of this treatment option for this heterogeneous congenital deformity.