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Plötz W, Gradinger R, Rechl H, et al. Cementless prosthesis of the hip joint with "spongy metal" surface. A prospective study. Arch Orthop Trauma Surg. 1992;111(2):102-9doi: 10.1007/BF00443476.
Plötz, W., Gradinger, R., Rechl, H., Ascherl, R., Wicke-Wittenius, S., & Hipp, E. (1992). Cementless prosthesis of the hip joint with "spongy metal" surface. A prospective study. Archives of orthopaedic and trauma surgery, 111(2), 102-9. https://doi.org/10.1007/BF00443476
Plötz, W, et al. "Cementless prosthesis of the hip joint with "spongy metal" surface. A prospective study." Archives of orthopaedic and trauma surgery vol. 111,2 (1992): 102-9. doi: https://doi.org/10.1007/BF00443476
Plötz W, Gradinger R, Rechl H, Ascherl R, Wicke-Wittenius S, Hipp E. Cementless prosthesis of the hip joint with "spongy metal" surface. A prospective study. Arch Orthop Trauma Surg. 1992;111(2):102-9. doi: 10.1007/BF00443476. PMID: 1562421.
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Arch Orthop Trauma Surg. 1992;111(2):102-9. doi: 10.1007/BF00443476.

Cementless prosthesis of the hip joint with "spongy metal" surface. A prospective study.

Archives of orthopaedic and trauma surgery

W Plötz, R Gradinger, H Rechl, R Ascherl, S Wicke-Wittenius, E Hipp

Affiliations

  1. Orthopaedic Department, Klinikum rechts der Isar, Technical University, Munich, Federal Republic of Germany.

PMID: 1562421 DOI: 10.1007/BF00443476

Abstract

Our investigations in human specimens and animal experiments show that prostheses with a spongy metal surface can become fixed by bony ingrowth to varying degrees. After consistent clinical and radiological follow-up over 12-65 months (mean 34 months) in a prospective study of 100 consecutive patients in whom 106 cementless total hip replacements had been carried out, we were able to show that after 1 year 82% of patients were pain-free with the prosthesis fixed by bony ingrowth, 8% were pain-free with the prosthesis fixed by dense fibrous tissue and 10% were not pain-free, but did not want revision surgery. Thigh pain decreased steadily from 53% 3 months postoperatively to 6.6% 15 months after operation. We believe that, when the implantation technique is exact, a high percentage of cementless spongy metal prostheses are fixed by bony ingrowth, and that a cementless prosthesis should be implanted only in patients under 60 years of age without osteoporosis.

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