Prospective mid-term results of a consecutive series of a short stem.
A large number of short stem prostheses for hip -arthroplasty have been introduced in the past years. Although there is a large increase of publications about short stems, there is still little data available about survival and revision rates. We report prospectively on the outcome of 84 consecutive NANOS® short stem prostheses in 81 patients. We have included 37 female patients and 44 male patients with an average age of 61.6 ± 9.2 years. The main diagnoses were osteoarthritis in 67 patients, dysplastic osteoarthritis in 8 patients and avascular necrosis of the femoral head in 6 patients. Along with demographic data and co-morbidities, the Harris Hip Score was recorded preoperatively and at follow-up. The Harris Hip Score increased from 36.6 ± 14.5 preoperatively to 94.5 ± 8.8 at the final follow-up. During the main follow-up time (27.7 months ± 5.7) none of the 84 stems were revised, intraoperatively three fissure fractures occurred.
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N
Stadler
J
J
Lehner
R
R
Abbas
K
K
Trieb
D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D005260:Female; D005271:Femur Head Necrosis / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery*; D011446:Prospective Studies; D011474:Prosthesis Design; D016896:Treatment Outcome