AI Article Synopsis

  • The study evaluates the conjoined tendon-preserving posterior (CPP) approach in total hip arthroplasty (THA) for its clinical outcomes and complications compared to the standard posterior approach (PA).
  • A total of 83 patients were analyzed, showing that the CPP approach resulted in longer surgery times and more blood loss, but did not significantly differ in hip function scores or complication rates.
  • Both approaches had comparable success regarding complications and implant alignment, suggesting CPP could lower dislocation rates, but caution is needed due to potential nerve issues.

Article Abstract

Purpose: The conjoined tendon-preserving posterior (CPP) approach is a modified posterior approach for total hip arthroplasty (THA) that preserves the short external rotator muscles and most ischiofemoral ligaments. The objective of the present study was to compare the short-term clinical outcomes, complications, and imaging evaluations of CPP and posterior approaches in THA.

Methods: This retrospective study included 83 patients from May 2018 to September 2021: 36 patients with 42 hips who underwent THA with the CPP approach (CPP group) and 47 patients with 60 hips who underwent THA with the standard posterior approach (PA group) with a minimum of 2 years of follow-up. Assessment tools included operative times, blood loss, preoperative and last follow-up Harris Hip Scores (HHS), postoperative complications, and implant placement angles between the groups. Statistical analysis was performed using chi-square tests and T-tests.

Results: The CPP approach had a significantly longer operative time and greater blood loss compared to the PA group. Preoperative and postoperative HHS were not significantly different between groups. Considering complications, the PA group had one case each of dislocation and infection, and the CPP group had two cases of sciatic nerve palsy, but the difference was not significant. Cup anteversion, inclination and stem anteversion were not significantly different between groups.

Conclusion: Functional outcomes, complication rates, and implant placement angles were comparable with the posterior approach, and the CPP approach has the potential to reduce postoperative dislocations. However, careful attention should be paid to sciatic nerve palsy during early initiation of the CPP approach, and this study did not demonstrate that the CPP approach was clearly superior to the posterior approach.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11735358PMC
http://dx.doi.org/10.1111/os.14194DOI Listing

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