Henlow Veterinary Centre, Henlow, UK.
Faculty of Agricultural Sciences, University of Applied and Environmental Sciences (UDCA), Bogotá, Colombia.
J Feline Med Surg. 2020 Oct;22(10):1008-1015. doi: 10.1177/1098612X20904458. Epub 2020 Mar 4.
The aim of this study is to describe the treatment and outcome of humeral condylar fractures and humeral intracondylar fissures in cats with patellar fracture and dental anomaly syndrome (PADS) and to provide advice on how to manage these cases in practice.
Data were collated on cats with PADS that were reported to have sustained humeral fractures or had fractures or fissures of the humerus identified on radiographs. The details of the fractures were recorded in addition to any treatment and outcome information.
Of the 207 cases reported with PADS, 18 cats (8.7%) were found to have humeral condylar fractures, none of which was known to have resulted from significant trauma. Where treatment occurred, it involved the placement of transcondylar positional or lag screws. In some cases additional implants, including supracondylar bone plates and screws or Kirschner wires (K-wires), were used. Follow-up data revealed that only two cats were euthanased owing to the presence of the humeral fractures, with at least eight achieving some degree of recovery of function.
These humeral fractures all have the characteristics of stress insufficiency fractures, being simple isolated fractures that are short oblique, with increased radio-density at the fracture line and occurring following minimal or no trauma. Humeral intracondylar fissures were identified in two cats and it is possible that some of the other fractures may have occurred secondary to pre-existing fissures. To our knowledge, no prior reports exist of fissures in cats that do not meet the criteria for PADS. Surgical repair primarily consisted of the placement of transcondylar lag or positional screws with, in some cases, adjunct implants such as bone plates and screws or K-wires. Though there were insufficient data to determine the prognosis for these fractures in the long term, unlike patellar fractures, many of these fractures will heal if treated appropriately.
本研究旨在描述患有髌骨骨折和牙异常综合征（PADS）的猫的肱骨髁骨折和肱骨内髁裂缝的治疗和结果，并就如何在实践中处理这些病例提供建议。
收集了患有 PADS 的猫的报告，这些猫报告有肱骨骨折或在 X 光片上发现肱骨骨折或裂缝。记录了骨折的详细信息，以及任何治疗和结果信息。
在报告的 207 例 PADS 病例中，发现 18 例（8.7%）猫患有肱骨髁骨折，其中没有一例已知是由明显创伤引起的。在进行治疗的情况下，涉及髁间位置或拉力螺钉的放置。在某些情况下，还使用了其他植入物，包括髁上骨板和螺钉或克氏针（K 线）。随访数据显示，只有两只猫因肱骨骨折而被安乐死，至少有 8 只猫在一定程度上恢复了功能。
这些肱骨骨折都具有应力不足性骨折的特征，是简单的孤立性骨折，短而斜，骨折线处的放射密度增加，且发生在轻微或无创伤后。在两只猫中发现了肱骨内髁裂缝，可能其他一些骨折是由于先前存在的裂缝引起的。据我们所知，以前没有报告过不符合 PADS 标准的猫的裂缝。手术修复主要包括髁间拉力或位置螺钉的放置，在某些情况下，还使用了附加植入物，如骨板和螺钉或 K 线。尽管没有足够的数据来确定这些骨折的长期预后，但与髌骨骨折不同，如果治疗得当，许多这些骨折将愈合。
