Abstract
Purpose
We present a minimally invasive tissue-sparing posterior superior (TSPS) approach that intends to protect the abductor muscles during total hip arthroplasty, prevents the release of the short rotator muscles, and provides the surgeon with the option to repair the posterior capsule. We hypothesized that the TSPS technique would produce a better clinical outcome, faster recovery, and lower complication rates, and that it would not jeopardize acetabular component position.
Methods
A retrospective, observational study was conducted in a consecutive series of patients. A cohort of 130 patients (130 hips) operated with a standard posterolateral approach were compared with a cohort of 132 patients (132 hips) operated with a TSPS approach. Patients were assessed with the Harris hip score (HHS) and Western Ontario and McMaster Universities index (WOMAC), which were carried out preoperatively, one month (HHS only), three months, one year, and at four years post-operatively.
Results
Compared with the standard group, patients in the TSPS group showed a faster return to ambulation as reflected in better post-operative HHS and WOMAC scores up until one year (p < 0.05). No significant differences in HHS (p = 0.564) and WOMAC (p = 0.796) scores were found at the four-year follow-up. No major adverse events were observed in either group.
Conclusion
The TSPS approach yielded better early clinical outcomes and appears to be a safe and reliable technique. However, these early differences do not appear to be sustained over time, as comparable mid-term clinical outcomes with similar complications rates were observed.
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Funding
This work was supported by Adler Ortho S.R.L., Cormano, Italy.
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Capuano, N., Grillo, G., Carbone, F. et al. Total hip arthroplasty performed with a tissue-preserving technique using superior capsulotomy. International Orthopaedics (SICOT) 42, 281–287 (2018). https://doi.org/10.1007/s00264-017-3722-9
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DOI: https://doi.org/10.1007/s00264-017-3722-9