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Published on: August 4, 2022
[Application of modular femoral prosthesis in hip prosthesis revision]
1Department of Orthopedics, Xiangya Hospital, Central South University, Changsha Hunan 410008, PR China. Doctorhuyihe19641022@yahoo.com.cn
Objective:
To discuss the therapeutic effect of distal fixed modular femoral prosthesis for the hip prosthesis revision.
Methods:
Between August 2004 and May 2008, cementless modular femoral prosthesis was used for hip prosthesis revision in 21 cases. There were 9 males and 12 females, aged from 49 to 72 years (mean, 64.6 years). The time from revision to total hip arthroplasty was 2 to 18 years (mean, 11.7 years). The causes of revision included aseptic loosening in 19 cases (5 cases were periprosthetic femoral fracture), and deep infection in 2 cases. First revision was given in all patients. Preoperative Harris score was 41.8 +/- 3.5; pain visual analogue score (VAS) was 7.62 +/- 0.86.
Results:
All patients achieved healing of incision by first intention, and no deep venous thrombosis and nerve injury occurred. Twenty-one cases were followed up 2 to 6 years with an average of 4.3 years. No prosthetic loosening or infection occurred. Bone ingrowth was observed around the implant during the follow-up period. At last follow-up, 2 cases had femoral stem subsidence without obvious hip pain and other symptoms, and no special treatment was given. Harris score was 82.7 +/- 3.3 and VAS score was 0.19 +/- 0.51 at last follow-up, showing significant differences when compared with those before operation (P < 0.05).
Conclusion:
The short-term result of modular femoral prosthesis is satisfactory in hip prosthesis revision, and it can improve the hip function and relieve the pain greatly.