Original ArticleComparison Between Hand Rasping and Robotic Milling for Stem Implantation in Cementless Total Hip Arthroplasty
Section snippets
Materials and Methods
From September 2000 to September 2002, a total of 156 primary cementless THAs were performed on 140 patients at our 2 institutions. The indications were good bone quality (Dorr type A or B) [13] and Crowe class I, II, or III (0%-100% subluxation of the hip) [14]. Patients with poor bone quality (Dorr type C) were excluded because of the need for use of cement. Patients with Crowe class IV (>100% subluxation of the hip) were excluded because of the need for subtrochanteric osteotomy to be
Results
One patient of the robotic milling group was lost at the final follow-up. Four patients of the hand-rasping group were lost at the final follow-up. One patient (2 hips) of the hand-rasping group died with lung cancer during follow-up period. Complete clinical follow-up including evaluation on the 2-year postoperative radiograph was available for 77 hips in the robotic milling group and 72 hips in the hand-rasping group. Radiographic evaluation using reconstructed CT images obtained
Discussion
In the present study, we compared the clinical effectiveness of robotic milling and hand rasping. There was no significant difference in the Merle D'Aubigne hip score between the 2 groups at 3 months. These findings are consistent with the reports of Bargar et al [7] and Honl et al [12]. There were no significant differences in thigh pain or the time required to gain the ability to walk more than 6 blocks without a cane. However, the number of patients who gained the ability to walk more than 6
References (29)
- et al.
Computerized templating in uncemented total hip arthroplasty to assess component fit and fill
J Arthroplasty
(1992) - et al.
Effect of rotation on the radiographic appearance of the femoral canal
J Arthroplasty
(1994) - et al.
Neglected congenital dislocation of the hip
J Arthroplasty
(1996) - et al.
Structural and cellular assessment of bone quality of proximal femur
Bone
(1993) - et al.
Comparison of the fit and fill between the anatomic hip femoral component and the VerSys taper femoral component using virtual implantation on the ORTHODOC workstation
J Orthop Sci
(2003) - et al.
Clinical accuracy evaluation of femoral canal preparation using the ROBODOC system
J Orthop Sci
(2004) Computer-assisted orthopedic surgery
J Orthop Sci
(2003)- et al.
Ingrowth surfaces. Plasma spray coating to titanium alloy hip replacements
Clin Orthop
(1994) - et al.
Failure mechanisms of anatomic porous replacement icementless total hip replacement
Clin Orthop
(1997) - et al.
The case for porous-coated hip implants. The femoral side
Clin Orthop
(1990)
The various stress patterns of press-fit, ingrown, and cemented femoral stems
Clin Orthop
The effect of axial and torsional loading on strain distribution in the proximal femur as related to cementless total hip arthroplasty
Clin Orthop
Primary and revision total hip replacement using the Robodoc system
Clin Orthop
Development of a surgical robot for cementless total hip arthroplasty
Clin Orthop
Cited by (0)
No benefits or funds were received in support of the study.