Abstract

Objective The aim of this study was to describe a new surgical method of segmental femoral ostectomy for the reconstruction of the femoropatellar joint (FPJ) in dogs with medial patellar luxation (MPL) grade IV.

Study Design The medical records of six dogs that underwent segmental femoral ostectomy to reconstruct the FPJ for MPL grade IV were retrospectively reviewed. The data included breed, age, body weight, comorbidities, history of orthopaedic abnormalities, pre- and postoperative radiographic findings, morphological indicators measured on three-dimensional computed tomographic multiplanar reconstruction images, surgical methods and postoperative complications.

Outcomes Eleven hindlimbs with MPL grade IV in six dogs underwent segmental femoral ostectomy to reconstruct the FPJ with the four basic surgical procedures. Six stifle joints with femoral varus deformity were treated by closing wedge ostectomy and segmental ostectomy, while five stifle joints were treated by segmental ostectomy alone. The mean resected femoral length was 11.7 mm. The mean resected femoral length relative to the preoperative femoral length was 14.3%. The stability and congruity of the FPJ was markedly improved, with an increased range of motion in all dogs compared with their preoperative status.

Conclusion Segmental femoral ostectomy was a useful treatment method for MPL grade IV with shortened quadriceps muscle length relative to the femoral length. Reconstruction of the FPJ is important for recovery of limb function.

Authors' Contributions

Yukari Nagahiro contributed to conception of study, study design, acquisition of data and data analysis and interpretation. Sawako Murakami, Masakazu Shimada and Nobuo Kanno contributed to acquisition of data. Keiji kamijo contributed to data analysis and interpretation. Shuji Suzuki and Yasuji Harada contributed to acquisition of data and data analysis and interpretation. Yasushi Hara contributed to conception of study and data analysis and interpretation. All authors drafted, revised and approved the submitted manuscript.

中文翻译：

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股骨段节段性骨切除术用于四级内侧Pat骨脱位犬的股骨tell关节重建。

摘要

目的 本研究的目的是描述一种分段式股骨造口术的新手术方法，用于重建IV骨内侧脱位（MPL）IV级犬的股骨tell关节（​​FPJ）。

研究设计 回顾性回顾了6例行节段性股骨切除术以重建FPJ的MPL IV级狗的病历。数据包括品种，年龄，体重，合并症，骨科异常病史，术前和术后影像学发现，在三维计算机断层摄影多平面重建图像上测量的形态学指标，手术方法和术后并发症。

结果 在六只犬中，经四段基本外科手术，分别对11例MPL级IV级后肢进行了股骨股骨切除术，以重建FPJ。闭合性楔形骨切除术和节段性骨切除术治疗了6例股骨内翻畸形的膝关节，而单纯节段性骨切除术治疗了5个窒息关节。切除的平均股骨长度为11.7 mm。相对于术前股骨长度的平均切除股骨长度为14.3％。FPJ的稳定性和一致性显着提高，与术前相比，所有狗的活动范围都增加了。

结论 股骨节段性骨切除术是治疗MPL IV级，股四头肌相对于股骨长度缩短的一种有效方法。FPJ的重建对于肢体功能的恢复很重要。

作者的贡献

Yukari Nagahiro为研究构想，研究设计，数据获取以及数据分析和解释做出了贡献。村上幸子，岛田昌一和关野信夫为数据采集做出了贡献。Keiji kamijo为数据分析和解释做出了贡献。铃木修二和原田靖二为数据采集以及数据分析和解释做出了贡献。Yasushi Hara为研究概念以及数据分析和解释做出了贡献。所有作者都起草，修改和批准了提交的手稿。