ArticleWorld journal of clinical cases2022
Early patellar tendon rupture after total knee arthroplasty: A direct repair method.
Article in World journal of clinical cases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.
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Who cites it
3 citing papers in PubMed, 2 syntheses or guidelines pooled it, 8 citations in OpenAlex.
- Various surgical techniques result in different outcomes for full extensor mechanism ruptures following total knee replacement: A systematic review by the European Knee Associates (ESSKA-EKA).Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Pooled it
- Patellar tendon restoration techniques: a systematic review of outcomes for repair and reconstruction methods.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Pooled it
- Greater medial arterial supply revealed by 7-Tesla quantitative magnetic resonance imaging, histology and high-resolution computed tomography of the patellar tendon.Journal of experimental orthopaedics · 2026Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPatellar tendon rupture after total knee arthroplasty (TKA) is a catastrophic complication. Although the occurrence of this injury is rare, it can lead to significant dysfunction for the patient and is very tricky to deal with. There has been no standard treatment for early patella tendon rupture after TKA, and long-term follow-up data are lacking.
aimTo introduce a direct repair method for early patella tendon rupture following TKA and determine the clinical outcomes and complications of this method.
methodsDuring the period of 2008 to 2021, 3265 consecutive TKAs were retrospectively reviewed. Twelve patients developed early patellar tendon rupture postoperatively and were treated by a direct repair method. Mean follow-up was 5.7 years. Demographic, operative, and clinical data were collected. The clinical outcomes were assessed using the Western Ontario and McMaster Universities (WOMAC) score, the Hospital for Special Surgery (HSS) score, knee range of motion, extensor lag, and surgical complications. Descriptive statistics and paired
resultsFor all 12 patients who underwent direct repair for early patellar tendon rupture, 3 patients failed: One (8.3%) for infection and two (17.6%) for re-fracture. The two patients with re-fracture both underwent reoperation to reconstruct the extensor mechanism and the patient with infection underwent revision surgery. The range of motion was 109.2° ± 10.6° preoperatively to 87.9° ± 11° postoperatively, mean extensor lag was 21° at follow-up, and mean WOMAC and HSS scores were 65.8 ± 30.9 and 60.3 ± 21.7 points, respectively.
conclusionThis direct repair method of early patellar tendon rupture is not an ideal therapy. It is actually ineffective for the recovery of knee joint function in patients, and is still associated with severe knee extension lag and high complication rates. Compared with the outcomes of other repair methods mentioned in the literature, this direct repair method shows poor clinical outcomes.
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