Extensor tendon ruptures after total knee arthroplasty

Orthopaedics & Traumatology, Surgery & Research : OTSR
M BonninD Huten

Abstract

Extensor tendon rupture is a rare but serious complication after total knee arthroplasty (TKA) that impairs active knee extension, thereby severely affecting knee function. Surgery is usually required. Surgical options range from simple suturing to allograft reconstruction of the entire extensor mechanism and include intermediate methods such as reconstruction using neighbouring tendons or muscles, synthetic ligament implantation, and partial allograft repair. Simple suturing carries a high failure rate and should therefore be routinely combined with tissue augmentation using a neighbouring tendon or a synthetic ligament. After allograft reconstruction, outcomes are variable and long-term complications common. Salvage procedures for managing the most severe cases after allograft failure involve reconstruction using gastrocnemius or vastus flaps. Regardless of the technique used, suturing must be performed under tension, with the knee fully extended, and rehabilitation must be conducted with great caution. Weaknesses of available case-series studies include small sample sizes, heterogeneity, and inadequate follow-up duration. All treatment options are associated with substantial failure rates. The patient should be informed of t...Continue Reading

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Citations

Nov 1, 2016·Clinical Orthopaedics and Related Research·James C BlackSimon Y Tang
Aug 24, 2016·International Journal of Surgery Case Reports·Jesús PalenciaAbdulaziz Z Alomar
Nov 7, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Alfredo LambertiAndrea Baldini
Mar 10, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·J R A PhillipsA D Toms
Nov 21, 2019·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Vadim BenkovichShlomo Bloom
Feb 6, 2021·Journal of Orthopaedics·Marco Strauch Leira

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