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Updated: Aug 31, 2025
Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
Hip offset and leg-length restoration in revision hip arthroplasty with a monoblock, hydroxyapatite-coated stem
Paul Saunders1, Debbie Shaw2, Sijin Sidharthan2
1Department of Orthopaedics, Warwick Hospital, Warwick, UK.
Aims:
Restoration of normal hip biomechanics in arthroplasty surgery is important in order to achieve good muscle function and joint stability.
Methods:
In this retrospective cohort study, we examined the postoperative radiographs of 131 femoral revision arthroplasty procedures using a monoblock, fully hydroxyapatite (HA)-coated titanium stem. Femoral offset, modified-global offset and leg length were measured of the operated and contralateral hips.
Results:
Femoral offset was restored to ±10 mm in 108 cases (82%), modified-global offset was restored ±10 mm in 93 cases (71%) and leg length was restored to ±10 mm in 102 cases (81%). There were 4 dislocations with a mean follow-up period of 38 months.
Conclusions:
Restoration of hip biomechanics is achievable with a monoblock stem and thus is a viable option in revision hip arthroplasty.
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