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Cementless total replacement for severely dysplastic or dislocated hips.

T Paavilainen1, V Hoikka, K A Solonen

  • 1Orthopaedic Hospital of the Invalid Foundation, Helsinki, Finland.

The Journal of Bone and Joint Surgery. British Volume
|March 1, 1990
PubMed
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This study presents short-term outcomes of 100 cementless total hip replacements for hip dysplasia and dislocation. Despite complications, innovative techniques led to generally good results and patient satisfaction.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Severe hip dysplasia and dislocation present complex surgical challenges.
  • Traditional cementless total hip replacement techniques may be insufficient for these complex cases.

Purpose of the Study:

  • To evaluate the short-term outcomes of cementless total hip replacement using novel technical solutions for severely dysplastic and dislocated hips.
  • To assess the efficacy of specific surgical modifications for challenging hip anatomy.

Main Methods:

  • Performed 100 cementless total hip replacements on 52 dysplastic and 48 dislocated hips.
  • Utilized acetabular screw ring placement below the cotyloid area for narrow iliac bone.
  • Employed various osteotomies for tight muscles or proximal femur deformities.
  • Emphasized meticulous pre-operative planning and precise surgical technique.

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Main Results:

  • Achieved generally good short-term results despite a high complication rate.
  • Patients, including those requiring reoperation, reported satisfaction with the final outcome.
  • Demonstrated the feasibility of new technical solutions in complex hip arthroplasty.

Conclusions:

  • Cementless total hip replacement with specialized techniques can yield satisfactory results in severe hip dysplasia and dislocation.
  • Careful pre-operative planning and precise surgical execution are crucial for managing complex hip deformities.
  • Patient satisfaction is achievable even after revisions in challenging cases.