Total knee arthroplasty following intramedullary tibial nailing
10.1186/s43019-020-00055-2
- Author:
Evan J. SMITH
1
;
Marilyn HENG
;
Hany S. BEDAIR
;
Christopher M. MELNIC
Author Information
1. Department of Orthopaedic Surgery, Massachusetts General Hospital/Newton Wellesley Hospital, Harvard Medical School, 55 Fruit Street, YAW 3700 – Suite 3B, Boston, MA, 02114, USA
- Publication Type:R E S E A R C H A R T I C L E
- From:The Journal of Korean Knee Society
2020;32(3):e35-
- CountryRepublic of Korea
-
Abstract:
Methods:This is a retrospective case series of patients who underwent TKA after IMN fixation of tibial fractures.Patient and case data, including need for hardware removal, staged vs non-staged procedures, operative time, and need for revision implants, were recorded. Postoperative data, including complications and revision, were recorded.Oxford Knee Score (OKS) was performed at follow-up.
Results:Nine patients were identified consisting of eight women and one man. Follow-up ranged from 0.8–13 years. Non-staged removal of the intramedullary hardware occurred in three cases that had increased operative lengths recorded. There were no complications related to wound healing or infection. No patients required revision.Two of the three patients who underwent non-staged TKA developed arthrofibrosis requiring manipulation. OKS scores in patients who underwent non-staged surgery were consistently low.
Conclusions:Conversion TKA after tibial IMN fixation can result in satisfying outcomes in many patients. However, intramedullary hardware presents challenges to TKA similar to more extensively studied conversion TKA scenarios.Removing hardware in either a staged or non-staged fashion results in increased resource utilization and imparts perioperative challenges with only theoretical benefits of one approach compared to the other. Increased stiffness may be associated with a non-staged approach to hardware removal and TKA. Several technical factors may permit component positioning without removal of hardware. Despite limitations, this is the first series to discuss this challenging clinical scenario and provides surgeons with technical guidance and data on operative outcomes.
