ArticleBMC musculoskeletal disorders2026
What are the key factors influencing traction force in postless hip arthroscopy: a retrospective case-control study.
Article in BMC musculoskeletal disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPerineal post countertraction during hip arthroscopy risks complications. Postless traction avoids the perineal post but requires understanding the factors influencing traction force to optimize safety. This study investigated how gender, body mass index (BMI), traction states, hip rotation, lateral center-edge angle (LCEA), alpha angle, and femoral anteversion affect traction force during postless hip arthroscopy. MATERIALS AND
methodsThis retrospective study included patients undergoing postless hip arthroscopy for femoroacetabular impingement syndrome (FAIS) between October 2023 and March 2024. Inclusion criteria comprised confirmed FAIS diagnosis and comprehensive intraoperative traction force documentation across six traction states (initial traction to 40 min post-capsulotomy) and three rotational positions (neutral, internal/external rotation at 15°). Traction force was measured using a force sensor. Preoperative LCEA, alpha angle, and femoral anteversion were radiographically assessed. Mann-Whitney U tests and repeated-measures ANOVA were used to assess sex-, state-, and rotation-related effects on traction force; Pearson or Spearman correlation analyses were used to analyze associations between BMI, alpha angle, LCEA, femoral anteversion, and traction force.
resultsA total of 34 patients (10 males, 24 females) were included in this study. Traction forces increased from initial gross traction to needle puncture of the capsule (P < 0.001), then decreased post-puncture (P < 0.001). In the vast majority of traction states, external or internal rotation position required higher forces than the neutral position to achieve adequate joint distraction for surgical visualization (P < 0.001). Males exhibited greater forces than females (P < 0.001). Positive correlations included BMI, LCEA, and alpha angle (P < 0.05). Femoral anteversion angle negatively correlated with traction. It was also found that LCEA was positively correlated with the difference in traction force between different rotational positions, while femoral anteversion was negatively correlated (P < 0.05).
conclusionsTraction force during postless hip arthroscopy increases with higher BMI, larger LCEA, and elevated alpha angle, while greater femoral anteversion reduces traction requirements. Male gender and internal or external hip rotation consistently demand higher forces compared to females and neutral rotation. Traction force decreases after joint puncture and capsulotomy and decrease over time during surgery.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.