Summary
Two series of implanted conical, polyethylene Ring cups were studied clinically and radiographically. In one series the cups were uncemented while in the second cement was used. The results using cemented conical cups were then compared with results using a cemented cup of hemispherical design to study the effect of cup geometry. At 7–8 years a total of 3.8% of the cemented conical series and 2.9% of the uncemented were revised for aseptic loosening. At 9 years survivorship was identical. Migration of the sockets occurred in approximately 25% of both series and was directly related to cup cover of less than 80% (P < 0.001). The series of cemented hemispherical cups were reviewed after an identical period. Although the numbers revised for loosening were comparable in this and the cemented conical group, radiological migration was statistically greater in the latter (P < 0.001). Alternative methods of socket preparation and cement technique were thought to be the most likely explanation for the observed differences.
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Hodgkinson JP, Shelley P, Wroblewski BM (1988) The correlation between X-ray appearance and operative findings at the bone cement junction of the cup in LFA. Clin Orthop 228:105–109
Albrecht-Olsen P, Owen-Falkenberg T, Burgaard P, Bogeskov Andersen P (1989) Nine year follow-up of the cementless Ring hip. Acta Orthop Scand 60:77–80
Engh CA, Griffin WL, Marx CL (1990) Cementless acetabular components. J Bone Joint Surg [Br] 72:53–59
DeLee JG, Charnely J (1976) Radiological demarcation of cemented sockets in total hip replacement. Clin Orthop 121:20–32
Hozack WJ, Rothman RH, Booth RE, Balderstone RA, Cohn JC, Pickens GT (1990) Survivorship analysis of 1,041 Charnley total hip arthroplasties. J Arthroplasty 5:41–47
Massin P, Schmidt L, Engh CA (1989) Evaluation of cementless acetabular component migration. J Arthroplasty 4:245–251
Bertin KC, Freeman MAR, Morscher E, Ring PA (1985) Cementless acetabular replacement using a pegged polythene prosthesis. Arch Orthop Trauma Surg 104:251–261
Charnley J (1979) Low friction arthroplasty of the hip. Springer, Berlin Heidelberg New York, p 88
Linder L, Carlsson AS (1986) The bone cement interface in hip arthroplasty. Acta Orthop Scand 57:495–500
Malcolm AJ (1990) Pathology of cemented low friction arthroplasties in autopsy specimens. In: Older MWJ (ed) Implant bone interface. Springer, Berlin Heidelberg New York
O'Leary JFM, Mallory TH, Kraus TJ, Lombardi AV, Lye C-L (1988) Mittelmeier ceramic total hip arthroplasty. J Arthroplasty 3:87–96
Apel DM, Smith DG, Schwartz CM, Paprosky WG (1989) Threaded cup acetabuloplasty — early clinical experience. Clin Orthop 241:183–189
Ling RSM (1980) Total hip replacement using a collarless femoral prosthesis. Hip 5:82
Dobbs HS (1980) Survivorship of total hip replacements. J Bone Joint Surg [Br] 62:168–173
Sutherland CJ, Wilde AH, Borden LS, Marks KE (1982) A ten year follow-up of 100 consecutive Muller curved-stem total hip arthroplasties. J Bone Joint Surg [Br] 64:970–982
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Timperley, J., Bannister, G., Gie, G. et al. Effect of cup geometry and the presence of cement on acetabular component fixation. Arch Orthop Trauma Surg 111, 301–304 (1992). https://doi.org/10.1007/BF00420054
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DOI: https://doi.org/10.1007/BF00420054