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. 2014 Jan;30(1):116-21.
doi: 10.12669/pjms.301.3635.

Restoration of femoral offset, rotation centers, limbs length equality of Chinese total hip arthroplasty patients

Yu-Ping Liu  1 , Yue-Dong Hao  2
Affiliations

Restoration of femoral offset, rotation centers, limbs length equality of Chinese total hip arthroplasty patients

Yu-Ping Liu et al. Pak J Med Sci. 2014 Jan.

Abstract

Objective: To explore the restoration of femoral offset, rotation centers, limbs length equality of Chinese total hip arthroplasty patients with careful preoperative surgical planning, the appropriate prosthesis and skillful manipulation combined with a variety of verification tests during the operation.

Methods: There were 92 hips (from 92 patients) surgery was performed by the same surgeon using the posterlateral approach by careful preoperative surgical planning. Appropriate prosthesis was chosen determining the reasonable femur osteotomy location, skillful manipulation and paying attention to every detail combined with a variety of verification tests and preoperative measurements during the operation. We evaluated the offset and rotation centers of the healthy (not performed) side and the operated side, the preoperative and postoperative limbs length discrepancy and analyzed the change of femoral offset, rotation centers and limbs length discrepancy of THA patients by self-control.

Results: We found that the preoperative and postoperative femoral offset was basically not changed, the postoperative rotation centers had a tendency to the medial and inferior of the original rotation centers, the limbs length discrepancy and Harris Hip Score (HHS) were improved much more than before.

Conclusions: Careful preoperative surgical planning, the appropriate prosthesis and skillful manipulation combined with a variety of verification tests during the operation is significantly correlated to the remarkable radiological and clinical results of THA patients.

Keywords: Femoral offset; Limbs length; Rotation centers; Total hip arthoplasty.

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Figures

Fig.1
Fig.1
1, a the maker, the actual length is 10 cm 2 b is the line between bilateral tear-drop 3.The LLD is the difference of the length between c and d 4,X is the value X of rotation centers 5,Y is the value Y of rotation centers, the Length Y=d 6,O is the length of femoral offset
Fig.2
Fig.2
A femoral neck fracture Patient who was performed THA with hybrid prostheses. We used the marker (10cm) preoperative and used the marker or the metal or ceramic femoral head postoperative as the reference
Fig.3
Fig.3
A bilateral femoral head necrosis Patient, whose left hip is very gross, but the right side is basically good and the femoral head did not depressed
Fig.4
Fig.4
The patient was performed THA with Rebed prostheses
Fig.5
Fig.5
LLD, limbs length discrepancy, 1 column, LLD < 0.6cm 2 column, 1.2 cm >LLD >0.6 cm 3 column, 1.2 1.8cm
See this image and copyright information in PMC

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