Change of tibial tuberosity-trochlear groove (TT-TG) distance during total knee arthroplasty had no influence on clinical outcome and anterior knee pain.
Anterior knee pain
Patellofemoral problems
TT-TG
Tibial tuberosity-trochlear groove distance
Total knee arthroplasty
Total knee replacement
Journal
International orthopaedics
ISSN: 1432-5195
Titre abrégé: Int Orthop
Pays: Germany
ID NLM: 7705431
Informations de publication
Date de publication:
12 2021
12 2021
Historique:
received:
23
05
2020
accepted:
10
05
2021
pubmed:
3
6
2021
medline:
15
12
2021
entrez:
2
6
2021
Statut:
ppublish
Résumé
The main purpose of this study was to determine whether there is a correlation between the change of tibial tuberosity-trochlear groove (TT-TG) distance and clinical outcomes after total knee arthroplasty (TKA). A total of 52 knees undergoing TKA due to primary osteoarthritis were included in this retrospective study. All patients had pre- and postoperative CT scans. TT-TG distance was measured by two independent observers and the following alignment parameters were measured: hip-knee ankle angle (HKA), femoral mechanical angle (FMA), tibial mechanical angle (TMA), and posterior condylar angle (PCA). Clinical outcome was assessed using Knee Society Score (KSS) pre- and post-operatively and at a minimum of 12-month follow-up. Evidence of AKP was noted from follow-up reports. Pre- and postoperative scores were compared using a paired Student t-test. Pearson correlations were calculated to assess the influence of TT-TG on clinical outcome and of alignment parameters on the change in TT-TG. TT-TG between patients with and without AKP was compared using unpaired Student's t-test (p < 0.05). Neither the absolute postoperative TT-TG nor the amount of change in TT-TG correlated with the post-operative KSS or the change in KSS. Post-operative TT-TG and change in TT-TG did not differ significantly between patients with and patients without AKP. Only the change in FMA showed a correlation with the change in TT-TG (p = 0.01, r = 0.36). Despite a missing correlation between outcomes and TT-TG distance in this study, excessive TT-TG distance should be avoided. Furthermore, surgeons need to be aware that changes in femoral joint line orientation might affect TT-TG distance.
Identifiants
pubmed: 34075477
doi: 10.1007/s00264-021-05074-6
pii: 10.1007/s00264-021-05074-6
pmc: PMC8626385
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
3069-3074Informations de copyright
© 2021. The Author(s).
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