Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Mie, Japan.
J Surg Oncol. 2011 Mar 1;103(3):257-63. doi: 10.1002/jso.21823.
The KYOCERA Physio Hinge Total Knee System Type III (PHKIII) was developed to reconstruct bony defects of the distal femur. The PHKIII is originative in that the metallic parts are fully made of titanium alloy, and this prosthesis has a unique semi-rotating hinge joint and was designed especially for people with the Asian physical body-type. The clinical outcomes of the PHKIII after the resection of musculoskeletal tumors of the distal femur were evaluated.
There were 41 males and 28 females with a median age of 48-years. The median duration of follow-up was 57 months.
Eleven early complications and 37 late complications were observed, including 10 recurrences, 7 deep infections, 7 aseptic loosenings, 4 stem breakages, 4 displacements of shaft cap, and one wear of rotation sleeve. Twenty four prosthesis (35%) required a secondary operation because of complications. The five-year overall prosthetic survival rates, -prosthetic survival rate without aseptic loosening, and -limbs preservation rate were 85%, 90%, and 86%, respectively. The mean functional score according to the classification system of the Musculoskeletal Tumor Society was 20.5 points (68%).
Although continuous follow-up is required, reconstructions using PHKIII are considered to achieve more acceptable functional results.
京瓷 PHKIII 型全膝关节假体系统是为了重建远端股骨的骨缺损而研发的。PHKIII 的独特之处在于其金属部件完全由钛合金制成，该假体具有独特的半旋转铰链关节，专为亚洲人体型设计。本研究评估了 PHKIII 在切除远端股骨骨肉瘤后的临床疗效。
共有 41 名男性和 28 名女性患者，平均年龄为 48 岁。中位随访时间为 57 个月。
共观察到 11 例早期并发症和 37 例晚期并发症，包括 10 例复发、7 例深部感染、7 例无菌性松动、4 例柄断裂、4 例柄帽移位和 1 例旋转套管磨损。24 例（35%）因并发症需要二次手术。5 年总的假体生存率、无无菌性松动的假体生存率和保肢生存率分别为 85%、90%和 86%。根据肌肉骨骼肿瘤学会的分类系统，平均功能评分为 20.5 分（68%）。
尽管需要持续随访，但使用 PHKIII 重建被认为可以获得更可接受的功能结果。
