Journal article
Second-generation Extensively Porous-coated THA Stems at Minimum 10-year Followup
Clinical orthopaedics and related research, Vol.467(9), pp.2290-2296
09/01/2009
DOI: 10.1007/s11999-009-0831-9
PMCID: PMC2866944
PMID: 19365696
Abstract
The relatively high prevalence of thigh pain and stress shielding associated with the AML porous-coated cementless femoral component led to the development of the Prodigy
®
, a femoral component with more extensive porous-coating and a distal polished bullet tip with medial diaphyseal relief to potentially decrease the flexural rigidity. We prospectively evaluated a cohort of 100 consecutive cementless total hip arthroplasties performed using this device. The minimum followup was 10 years (mean, 11.4 years; range, 10–12 years). At 10-year followup, 69 of the 86 patients (82 hips) were living, 14 patients with 15 hips were deceased, and three patients with three hips were lost to followup. No hips required a stem revision. Two patients (two hips) complained of thigh pain. All hips were bone ingrown. Distal tip radiolucencies and osteolysis occurred in 13 hips (17%) and none, respectively. Twenty-one hips (28%) demonstrated moderate or severe stress shielding. Only further followup will determine if this could be a clinical problem or one with revision surgery. These results encourage the authors to continue using second-generation extensively coated stems in their primary total hip arthroplasty constructs.
Level of Evidence:
Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
Details
- Title: Subtitle
- Second-generation Extensively Porous-coated THA Stems at Minimum 10-year Followup
- Creators
- David W. Hennessy - University of IowaJohn J. Callaghan - University of Iowa Health CareSteve S. Liu - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Clinical orthopaedics and related research, Vol.467(9), pp.2290-2296
- Publisher
- Springer-Verlag
- DOI
- 10.1007/s11999-009-0831-9
- PMID
- 19365696
- PMCID
- PMC2866944
- ISSN
- 0009-921X
- eISSN
- 1528-1132
- Language
- English
- Date published
- 09/01/2009
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Orthopedics and Rehabilitation
- Record Identifier
- 9984622049702771
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