Previous Extensor Mechanism Repair Is Associated With Increased Rates of Surgical Complications Following Total Knee Arthroplasty: A Propensity-matched Analysis

Sean B. Sequeira, MD; Brian P. McCormick, MD; Mark D. Hasenauer, MD; Robert McKinstry, MD; Frank Ebert, MD; Henry R. Boucher, MD

Arthroplasty Today (Apr 2024)

Previous Extensor Mechanism Repair Is Associated With Increased Rates of Surgical Complications Following Total Knee Arthroplasty: A Propensity-matched Analysis

Sean B. Sequeira, MD,
Brian P. McCormick, MD,
Mark D. Hasenauer, MD,
Robert McKinstry, MD,
Frank Ebert, MD,
Henry R. Boucher, MD

Affiliations

Sean B. Sequeira, MD: Corresponding author. Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, 3333 North Calvert Street, Suite 400, Baltimore, MD 21218, USA. Tel.: +1 804 916 0847.; Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USA
Brian P. McCormick, MD: Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USA
Mark D. Hasenauer, MD: Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USA
Robert McKinstry, MD: Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USA
Frank Ebert, MD: Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USA
Henry R. Boucher, MD: Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USA

Journal volume & issue: Vol. 26
p. 101319

Abstract

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Background: Although extensor mechanism failure following total knee arthroplasty (TKA) is a devastating complication and has been heavily studied in the literature, the impact of extensor mechanism rupture and concomitant repair prior to TKA has not previously been evaluated. The purpose of this investigation was to evaluate how quadriceps and/or patellar tendon repairs prior to TKA would impact medical and surgery-related complications following TKA. Methods: The PearlDiver database was retrospectively reviewed to identify all primary TKA patients from 2010 to 2019. Patients who underwent quadriceps or patellar tendon repair prior to TKA were matched using a propensity score algorithm to a control cohort. We compared medical and surgical complication rates, emergency room visits, readmissions, and 90-day cost of care between the groups. Results: A total of 1197 patients underwent extensor mechanism repair prior to TKA and were matched to 11,970 patients who did not undergo repair prior to TKA. Patients who underwent extensor mechanism repair had higher rates of 90-day medical complications, as well as 1-year surgery-related complications including revision TKA (odds ratio [OR] 6.06; P < .001), lysis of adhesions (OR 2.18; P = .026), aseptic loosening (OR 2.21; P = .018), infection (OR 7.58; P < .001), and fracture (OR 8.53; P < .001). Patients with prior extensor mechanism repair were more likely to return to the emergency department (OR 1.66; P < .001) and become readmitted (OR 4.15; P < .001) within 90 days. Conclusions: Patients with previous extensor mechanism repair exhibited higher medical and surgery-related complications, including lysis of adhesions, following TKA than a control cohort. These findings may suggest that patients may require additional surveillance in the early postoperative period to avoid these disastrous complications following primary TKA.

Published in Arthroplasty Today

ISSN: 2352-3441 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Surgery: Orthopedic surgery
Website: https://www.journals.elsevier.com/arthroplasty-today/

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