Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon

Routine resection of the infrapatellar fat pad (IFP) during total knee arthroplasty (TKA) is controversial, as it may result in shortening of the patellar tendon (PT) and anterior knee pain. This prospective study examined whether IFP excision during TKA affects joint function, anterior knee pain, P...

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Main Authors: Sławomir Michalak, Łukasz Łapaj, Arleta Witkowska-Łuczak, Paweł Chodór, Jan Zabrzyński, Jacek Kruczyński
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/11/24/7339
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author Sławomir Michalak
Łukasz Łapaj
Arleta Witkowska-Łuczak
Paweł Chodór
Jan Zabrzyński
Jacek Kruczyński
author_facet Sławomir Michalak
Łukasz Łapaj
Arleta Witkowska-Łuczak
Paweł Chodór
Jan Zabrzyński
Jacek Kruczyński
author_sort Sławomir Michalak
collection DOAJ
description Routine resection of the infrapatellar fat pad (IFP) during total knee arthroplasty (TKA) is controversial, as it may result in shortening of the patellar tendon (PT) and anterior knee pain. This prospective study examined whether IFP excision during TKA affects joint function, anterior knee pain, PT dimensions and sonographic structure. A total of 65 consecutive patients undergoing TKA for osteoarthritis were randomized into two groups: IFP was resected in one and retained in the other. Patients were examined preoperatively, at 6 weeks and 6 months postoperatively: pain (Numerical Rating Scale—NRS), range of motion (ROM) and knee function (Knee Injury and Osteoarthritis Outcome Score—KOOS score) were evaluated; sonographic examination determined the length, structure and vascularity of the PTs. In both groups there were postoperative improvements in NRS and KOOS scores, although IFP resection did not influence clinical outcomes or sonographic parameters. At 6 weeks and 6 months postoperatively for both groups there were no differences between NRS scores (Mann–Whitney test, <i>p</i> = 0.511 and <i>p</i> = 0.579), ROM scores (Mann–Whitney test, <i>p</i> = 0.331, <i>p</i> = 0.180) or all KOOS subscores. IFP excision had no effect on sonographic parameters. This study suggests that IFP resection during TKA does not influence postoperative functional outcomes, pain scores, patellar tendon length and thickness, or sonographic structure.
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spelling doaj.art-061034e7bc97410a846fc4aa50c912892023-11-24T15:43:53ZengMDPI AGJournal of Clinical Medicine2077-03832022-12-011124733910.3390/jcm11247339Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar TendonSławomir Michalak0Łukasz Łapaj1Arleta Witkowska-Łuczak2Paweł Chodór3Jan Zabrzyński4Jacek Kruczyński5Department of General Orthopedics, Orthopedic Oncology and Traumatology, Poznań University of Medical Sciences, 61-545 Poznan, PolandDepartment of General Orthopedics, Orthopedic Oncology and Traumatology, Poznań University of Medical Sciences, 61-545 Poznan, PolandDepartment of General Orthopedics, Orthopedic Oncology and Traumatology, Poznań University of Medical Sciences, 61-545 Poznan, PolandDepartment of General Orthopedics, Orthopedic Oncology and Traumatology, Poznań University of Medical Sciences, 61-545 Poznan, PolandFaculty of Medicine, Nicolaus Copernicus University in Torun, Collegium Medicum in Bydgoszcz, 85-067 Bydgoszcz, PolandDepartment of General Orthopedics, Orthopedic Oncology and Traumatology, Poznań University of Medical Sciences, 61-545 Poznan, PolandRoutine resection of the infrapatellar fat pad (IFP) during total knee arthroplasty (TKA) is controversial, as it may result in shortening of the patellar tendon (PT) and anterior knee pain. This prospective study examined whether IFP excision during TKA affects joint function, anterior knee pain, PT dimensions and sonographic structure. A total of 65 consecutive patients undergoing TKA for osteoarthritis were randomized into two groups: IFP was resected in one and retained in the other. Patients were examined preoperatively, at 6 weeks and 6 months postoperatively: pain (Numerical Rating Scale—NRS), range of motion (ROM) and knee function (Knee Injury and Osteoarthritis Outcome Score—KOOS score) were evaluated; sonographic examination determined the length, structure and vascularity of the PTs. In both groups there were postoperative improvements in NRS and KOOS scores, although IFP resection did not influence clinical outcomes or sonographic parameters. At 6 weeks and 6 months postoperatively for both groups there were no differences between NRS scores (Mann–Whitney test, <i>p</i> = 0.511 and <i>p</i> = 0.579), ROM scores (Mann–Whitney test, <i>p</i> = 0.331, <i>p</i> = 0.180) or all KOOS subscores. IFP excision had no effect on sonographic parameters. This study suggests that IFP resection during TKA does not influence postoperative functional outcomes, pain scores, patellar tendon length and thickness, or sonographic structure.https://www.mdpi.com/2077-0383/11/24/7339infrapatellar fat pad resectiontotal knee arthroplastypatellar tendon ultrasound
spellingShingle Sławomir Michalak
Łukasz Łapaj
Arleta Witkowska-Łuczak
Paweł Chodór
Jan Zabrzyński
Jacek Kruczyński
Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon
Journal of Clinical Medicine
infrapatellar fat pad resection
total knee arthroplasty
patellar tendon ultrasound
title Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon
title_full Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon
title_fullStr Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon
title_full_unstemmed Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon
title_short Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon
title_sort resection of infrapatellar fat pad during total knee arthroplasty has no impact on postoperative function pain and sonographic appearance of patellar tendon
topic infrapatellar fat pad resection
total knee arthroplasty
patellar tendon ultrasound
url https://www.mdpi.com/2077-0383/11/24/7339
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