ArticleJournal of experimental orthopaedics2026
Knee rotation significantly increases measured tibial tubercle-trochlear groove distance in female patients with anterior knee pain: Findings after rotational measurement correction.
Article in Journal of experimental orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Anterior Knee Pain and Excessive External Tibial Torsion in Female Patients: Rationale and Outcomes of Rotational Tibial Osteotomy.Journal of clinical medicine · 2026Review
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Authors and funding
6 authors.
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Abstract
Purpose: To evaluate the influence of knee rotation angle (KRA) on tibial tubercle-trochlear groove (TT-TG) distance measured by computed tomography (CT) in female anterior knee pain (AKP) patients. To assess how correcting for knee rotation affects TT-TG values. To correlate rotational corrected TT-TG with the tibial tubercle-posterior cruciate ligament (TT-PCL) distance and tibial tubercle lateralisation (TTL) ratio. Methods: A retrospective study was performed on 100 consecutive female AKP patients (183 lower limbs) who underwent torsional CT scans. TT-TG distance was measured and KRA was determined. Rotational-corrected TT-TG (RC TT-TG) values were calculated by neutralising knee rotation. Moreover, TT-PCL distance and TTL were measured. Two orthopaedic surgeons independently performed all measurements. Spearman correlation and linear regression analyses were used to evaluate the relationship between KRA and TT-TG changes. Results: The mean native TT-TG was 17.22 ± 4.20 mm, mean KRA was 8.81 ± 5.08° and mean corrected TT-TG was 9.34 ± 4.70 mm. The difference between noncorrected and corrected TT-TG distance showed a very strong positive correlation with KRA ( Conclusion: Knee rotation is a significant factor affecting TT-TG measurement. Measuring TT-TG after correcting knee rotation to neutral provides a more accurate estimation of this measurement. RC TT-TG correlates more closely with rotation-independent tibial-based measurements. Level of Evidence: Level IV.
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