![]() Imageless navigation may represent a viable option for THA. Cup anteversion ( P = 0.6) and inclination ( P = 0.5), Harris Hip Score ( P = 0.1) and rate of dislocation ( P = 0.98) were similar between the two interventions. Compared with conventional THA, the navigated group demonstrated slightly lower leg length discrepancy ( P = 0.02) but longer duration of the surgical procedure ( P < 0.0001). There was between-group comparability at baseline in terms of age, body mass index (BMI), visual analogue scale, Harris Hip Score and leg length discrepancy ( P > 0.1). ![]() Fifty-two percent of patients were women. Twenty-one studies (2706 procedures) were retrieved. The outcomes of interest were to compare cup inclination and anteversion, leg length discrepancy, surgical duration, Harris Hip Score and rate of dislocation of imageless navigation versus conventional THA. No time constraints were used for the search. In January 2022, the following databases were accessed: PubMed, Web of Science, Google Scholar and Embase. All the clinical trials comparing imageless navigation versus conventional for primary THA were accessed. The present study was conducted according to the PRISMA 2020 guidelines. This meta-analysis compared surgical duration, implant positioning, Harris Hip Score and rate of dislocation of imageless navigation versus conventional THA. ![]() Its superiority over standard THA is debated. There has been a growing interest in imageless navigation for primary total hip arthroplasty (THA).
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