ArticleArchives of orthopaedic and trauma surgery2022
Treatment of acquired patella baja by proximalization tibial tubercle osteotomy significantly improved knee joint function but overall patient-reported outcome measures remain diminished after two to four years of follow-up.
Article in Archives of orthopaedic and trauma surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 11 citations in OpenAlex.
- Revision from unicompartmental knee arthroplasty to total knee arthroplasty: An analysis of 118 cases at midterm follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- [Surgical treatment of secondary patella baja following total knee arthroplasty].Operative Orthopadie und Traumatologie · 2026Article
- [Surgical treatment for chronic rupture of the quadriceps tendon].Operative Orthopadie und Traumatologie · 2026Article
- Alteration of Insall-Salvati ratio is associated with complications following fixation of patella fractures.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Article
- Outcomes of a Combined Procedure of Tibial Tubercle Proximalization, MPFL Reconstruction and Extensive Lateral Release for Revision Treatment of Habitual Patellar Dislocation in Flexion in Skeletally Mature Patients.Orthopaedic journal of sports medicine · 2025Article
- A novel assessment of the differences in various measurements in patients with patella alta and baja: a retrospective cross-sectional study.Quantitative imaging in medicine and surgery · 2024Article
- Patella Baja Revisited: Interposition of a Pedunculated Flap of the Hoffa Fat Pad to Treat Adhesions Between the Tibia and Patellar Tendon and Restore the Functional Length of the Patellar Tendon.Arthroscopy techniques · 2024Article
- Modified Z-plasty of the Patellar Ligament with Reinforcement of the Quadriceps Tendon in the Treatment of Patella Baja.Revista brasileira de ortopedia · 2024Article
- Surgical Treatment of Iatrogenic Patella Baja.Current reviews in musculoskeletal medicine · 2022Review
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6 authors at 3 institutions in 1 country.
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Abstract
introductionAcquired patella baja is often characterized by painful limitation of knee joint range of motion and anterior knee pain (AKP). Only few studies have evaluated the effectiveness of surgical treatment in terms of patient-reported outcome measures (PROM's) and sports activity. Thus, the goal of this study was to assess PROM's and sports activity after proximalization tibial tubercle osteotomy (P-TTO) in patients with symptomatic patella baja.
methodsBetween 2016 and 2018, a case series of 11 patients (male/female 4/7; age 48 ± 12 years) were treated by P-TTO and were retrospectively evaluated after a mean of 33.7 months (range 24-51 months). The Tegner activity score and the Kujala anterior knee pain scale were used in addition to a visual analogue scale (VAS; 0-10) regarding self-reported knee joint function and intensity of AKP. Radiographic assessment included the measure of patellar height using the Caton-Deschamps (CD) and Blackburne-Peel (BP) index.
resultsPostoperatively both the CD and the BP index increased to normality (p < 0.0001; p = 0.0012). Knee joint flexion improved from 100 ± 32° preoperatively to 123 ± 14° postoperatively (p = 0.0235). AKP decreased from 6.5 ± 2.1 points preoperatively to 3.7 ± 2.1 points postoperatively (p = 0.0061). This was accompanied by a significant increase in self-reported knee joint function from 1.8 ± 1.2 points preoperatively to 6.8 ± 2.3 points postoperatively (p = 0.0001) and an increase of the Tegner activity score from 1.8 ± 1.6 points preoperatively to 3.9 ± 1.5 points postoperatively (p = 0.0074). Although the Kujala score improved significantly by an average of 31.55 points (p = 0.001) overall score results remained reduced at 65.6 ± 17.9 points at final follow-up.
conclusionP-TTO yielded significant improvements in terms of AKP, subjective knee joint function and sports activity. However, the overall Kujala score results remained reduced, indicating that surgical correction of patellar height is not sufficient to relieve all patients' complaints. In addition, the incidence of postoperative complications was high.
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