ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2017
Preoperative digital planning versus postoperative outcomes in total hip arthroplasty using a calcar-guided short stem: frequent valgization can be avoided.
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Bone-Sparing Hip Arthroplasty in Young and Active Patients: A Narrative Review.Journal of clinical medicine · 2026Review
- How does the position of the pelvis and femur influence the selection of prosthesis size during 2D preoperative planning for total hip arthroplasty?BMC musculoskeletal disorders · 2024Article
- Subsidence after calcar-guided short stem total hip arthroplasty: five-year results of a prospective multicentre study.International orthopaedics · 2024Article
- Restoration of hip geometry after total hip arthroplasty: retrospective comparison of two short stems and one straight stem.BMC musculoskeletal disorders · 2022Article
- Femoroacetabular offset restoration in total hip arthroplasty; Digital templating a short stemWorld journal of orthopedics · 2022Article
- Article
- Calcar-guided short-stem total hip arthroplasty: Will it be the future standard? Review and perspectives.World journal of orthopedics · 2021Review
- Hip implants can restore anatomical and medialized rotation centres in most cases : a 3D templating study comparing four implantation strategies.Bone & joint open · 2021Article
- Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem.SICOT-J · 2021Article
- Short stems reproduce femoral offset better than standard stems in total hip arthroplasty: a case-control study.International orthopaedics · 2020Article
- Mid-term results of a new-generation calcar-guided short stem in THA: clinical and radiological 5-year follow-up of 216 cases.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2019Article
- Patient-dependent risk factors for self-perceived leg length discrepancy after total hip arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019Observational
- Cementless short-stem total hip arthroplasty in the elderly patient - is it a safe option?: a prospective multicentre observational study.BMC geriatrics · 2019Observational
- Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty.Journal of visualized experiments : JoVE · 2018Article
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3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionModern total hip arthroplasty is largely dependent on the successful preservation of hip geometry. Thus, a successful implementation of the preoperative planning is of great importance. The present study evaluates the accuracy of anatomic hip reconstruction predicted by 2D digital planning using a calcar-guided short stem of the newest generation.
methodsA calcar-guided short stem was implanted in 109 patients in combination with a cementless cup using the modified anterolateral approach. Preoperative digital planning was performed including implant size, caput-collum-diaphyseal angle, offset, and leg length using mediCAD II software. A coordinate system and individual scale factors were implemented. Postoperative outcome was evaluated accordingly and was compared to the planning.
resultsIntraoperatively used stem sizes were within one unit of the planned stem sizes. The postoperative stem alignment showed a minor and insignificant (p = 0.159) mean valgization of 0.5° (SD 3.79°) compared to the planned caput-collum-diaphyseal angles. Compared to the planning, mean femoral offset gained 2.18 (SD 4.24) mm, while acetabular offset was reduced by 0.78 (SD 4.36) mm during implantation resulting in an increased global offset of 1.40 (SD 5.51) mm (p = 0.0094). Postoperative femoroacetabular height increased by a mean of 5.00 (SD 5.98) mm (p < 0.0001) compared to preoperative measures. DISCUSSION: Two-dimensional digital preoperative planning in calcar-guided short-stem total hip arthroplasty assures a satisfying implementation of the intended anatomy. Valgization, which has been frequently observed in previous short-stem designs, negatively affecting offset, can be avoided. However, surgeons have to be aware of a possible leg lengthening.
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