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Case Reports
. 2021 Mar 19;57(3):287.
doi: 10.3390/medicina57030287.

Safety and Performance of Titanium Suture Anchors Used in Knee Ligament Repair Procedures

Antonio Maestro  1   2 , Iván Pipa  1 , Nicolás Rodríguez  1 , Carmen Toyos  1 , Marcelino Torrontegui-Duarte  3 , Cesar Castaño  2
Affiliations
Case Reports

Safety and Performance of Titanium Suture Anchors Used in Knee Ligament Repair Procedures

Antonio Maestro et al. Medicina (Kaunas). .

Abstract

Injuries to the knee ligaments can be particularly disabling in young patients, given the risk of long-term disability if adequate fixation is not achieved during initial repair. The TWINFIX™ titanium (Ti) suture anchor with ULTRABRAID™ Suture (Smith and Nephew, London, UK) was designed to secure tendon and ligament reconstructions with increased boney ingrowth at the anchor site with minimal invasive technique. This retrospective analysis looked at 33 patients (41 implants) operated with this device between 2015 and 2019 at a single institution. The average age of patients was 33.18 years (standard deviation [SD], 15.26), with an average body mass index of 24.88 (SD, 3.49). The indications were lateral extra-articular tenodesis during anterior cruciate ligament reconstruction, medial patellofemoral ligament reconstruction, quadriceps or patellar tendon repair and medial collateral ligament repair. After an average follow up of 24.3 + 6.53 months, there was no reports of clinical failure or radiographic evidence of implant failure or loosening. One patient experienced a complication unrelated to the study device, requiring manipulation under anesthesia with resolution of symptoms. This case series supports the safety and performance of this implants for the knee procedures in which its use is indicated. Additional follow-up will be required to determine whether these effects are sustained at medium- and long-term durations.

Keywords: anterolateral; knee; ligament; suture anchor; titanium.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Quadriceps reconstruction after its rupture by mean of 4 TWINFIX.
Figure 2
Figure 2
TWINFIX on the epicondyle footprint for medial collateral ligament, at the time of Anterior Cruciate Ligament ACL reconstruction.
Figure 3
Figure 3
The TWINFIX designed devices. (See footprint selection on the text).
Figure 4
Figure 4
Anterolateral fixation of the plasty at the time of lateral extra-articular (LET) (see footprint selection on the text). Arrows show femur and tibia tunnels with two interence screws fixation across out-in technique. Minimally invasive surgery for introducing the TWINFIX into the bone is showed.
Figure 5
Figure 5
ACL reconstruction on physis open patients. Under fluoroscopic control on the operating, selection of the footprint and intruction the TWINFIX for LET reconstruction.
See this image and copyright information in PMC

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