Semi-constrained and constrained knee arthroplasty for distal femur nonunion & mal-union

Q2 Medicine

Journal of Clinical Orthopaedics and Trauma Pub Date : 2025-06-27 DOI:10.1016/j.jcot.2025.103111

Sharath Kittanakere Ramanath , L. Vishwas , D. Punith , Gopalakrishna Pattar , Basavaraj Daddenavar

{"title":"Semi-constrained and constrained knee arthroplasty for distal femur nonunion & mal-union","authors":"Sharath Kittanakere Ramanath , L. Vishwas , D. Punith , Gopalakrishna Pattar , Basavaraj Daddenavar","doi":"10.1016/j.jcot.2025.103111","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>This study aims to evaluate the outcomes and complications associated with the use of semi-constrained and constrained prostheses in addressing mal-union and non-union of distal femur fractures. The objective is to provide a pain-free, mobile, and stable joint.</div></div><div><h3>Methods</h3><div>The study involved 9 patients with a mean age of 48.7 ± 12.2 years, the majority of whom were male (7 out of 9, or 77.7 %). Seven cases were completed in a single stage, while the remaining two cases were conducted in two stages, with a two-day interval between them. All patients were monitored at regular intervals of 6 weeks for the first 6 months, and then every 6 months for a duration of 3 years.</div></div><div><h3>Results</h3><div>The median duration of follow up was 24 months with a range of 18–72 months and majority (55.5 %) of them had follow up for 24 months. Maximum of the study subjects (66.7 %) had range of motion ranging from 81 to 120° postoperatively, 100.0 % did not require assistance while walking and 22.2 % reported complications where two of them required staged short interval replacement and one along with that had post-op superficial wound infection for 15 days.</div></div><div><h3>Conclusion</h3><div>Hinged knee prosthesis is a useful single stage option that allows immediate full weight bearing, restores most patients to an acceptable functional status capable of doing all activities of daily living and gives favorable outcomes.</div></div>","PeriodicalId":53594,"journal":{"name":"Journal of Clinical Orthopaedics and Trauma","volume":"69 ","pages":"Article 103111"},"PeriodicalIF":0.0000,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Clinical Orthopaedics and Trauma","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0976566225002097","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Medicine","Score":null,"Total":0}

引用次数: 0

Abstract

Background

This study aims to evaluate the outcomes and complications associated with the use of semi-constrained and constrained prostheses in addressing mal-union and non-union of distal femur fractures. The objective is to provide a pain-free, mobile, and stable joint.

Methods

The study involved 9 patients with a mean age of 48.7 ± 12.2 years, the majority of whom were male (7 out of 9, or 77.7 %). Seven cases were completed in a single stage, while the remaining two cases were conducted in two stages, with a two-day interval between them. All patients were monitored at regular intervals of 6 weeks for the first 6 months, and then every 6 months for a duration of 3 years.

Results

The median duration of follow up was 24 months with a range of 18–72 months and majority (55.5 %) of them had follow up for 24 months. Maximum of the study subjects (66.7 %) had range of motion ranging from 81 to 120° postoperatively, 100.0 % did not require assistance while walking and 22.2 % reported complications where two of them required staged short interval replacement and one along with that had post-op superficial wound infection for 15 days.

Conclusion

Hinged knee prosthesis is a useful single stage option that allows immediate full weight bearing, restores most patients to an acceptable functional status capable of doing all activities of daily living and gives favorable outcomes.

查看原文本刊更多论文

半约束和约束型膝关节置换术治疗股骨远端骨不连和骨不连

本研究旨在评估半约束型和约束型假体在治疗股骨远端骨折不愈合和不愈合中的效果和并发症。目的是提供一个无痛、活动和稳定的关节。方法9例患者，平均年龄48.7±12.2岁，男性居多（7 / 9，占77.7%）。7个病例在一个阶段完成，其余2个病例分两个阶段进行，中间间隔两天。所有患者在前6个月每6周定期监测一次，然后每6个月监测一次，持续3年。结果随访18 ~ 72个月，中位随访时间为24个月，多数（55.5%）患者随访24个月。最多的研究对象（66.7%）术后活动范围为81°至120°，100.0%的患者在行走时不需要辅助，22.2%的患者报告了并发症，其中2例患者需要分阶段短间隔置换，1例患者术后出现了15天的浅表伤口感染。结论铰链式膝关节假体是一种有效的单阶段选择，可以立即完全负重，使大多数患者恢复到可接受的功能状态，能够进行所有日常生活活动，效果良好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Clinical Orthopaedics and Trauma Medicine-Orthopedics and Sports Medicine

CiteScore

4.30

自引率

0.00%

发文量

181

审稿时长

92 days

期刊介绍： Journal of Clinical Orthopaedics and Trauma (JCOT) aims to provide its readers with the latest clinical and basic research, and informed opinions that shape today''s orthopedic practice, thereby providing an opportunity to practice evidence-based medicine. With contributions from leading clinicians and researchers around the world, we aim to be the premier journal providing an international perspective advancing knowledge of the musculoskeletal system. JCOT publishes content of value to both general orthopedic practitioners and specialists on all aspects of musculoskeletal research, diagnoses, and treatment. We accept following types of articles: • Original articles focusing on current clinical issues. • Review articles with learning value for professionals as well as students. • Research articles providing the latest in basic biological or engineering research on musculoskeletal diseases. • Regular columns by experts discussing issues affecting the field of orthopedics. • "Symposia" devoted to a single topic offering the general reader an overview of a field, but providing the specialist current in-depth information. • Video of any orthopedic surgery which is innovative and adds to present concepts. • Articles emphasizing or demonstrating a new clinical sign in the art of patient examination is also considered for publication. Contributions from anywhere in the world are welcome and considered on their merits.