Hip Pelvis.  2016 Dec;28(4):208-216. 10.5371/hp.2016.28.4.208.

Comparative Study of Bipolar Hemiarthroplasty for Femur Neck Fractures Treated with Cemented versus Cementless Stem

• Choi JY
• Sung YB
• Kim JH

• KMID: 2364698
• DOI: http://doi.org/10.5371/hp.2016.28.4.208

Abstract

PURPOSE
To compare and analyze clinical and radiologic outcomes of cemented versus cementless bipolar hemiarthroplasty for treatment of femur neck fractures.
MATERIALS AND METHODS
A total of 180 patients aged 65 years and over older who underwent bipolar hemiarthroplasty for treatment of displaced femur neck fractures (Garden stage III, IV) from March 2009 to February 2014 were included in this study. Among the 180 patients, 115 were treated with cemented stems and 65 patients with cementless stems. Clinical outcomes assessed were: i) postoperative ambulatory status, ii) inguinal and thigh pain, and iii) complications. The radiologic outcome was femoral stem subsidence measured using postoperative simple X-ray.
RESULTS
The cemented group had significantly lower occurrence of complications (postoperative infection, P=0.04) compared to the cementless group. There was no significant difference in postoperative ambulatory status, inguinal and thigh pain, and femoral stem subsidence.
CONCLUSION
For patients undergoing bipolar hemiarthroplasty, other than complications, there was no statistically significant difference in clinical or radiologic outcomes in our study. Selective use of cemented stem in bipolar hemiarthroplasty may be a desirable treatment method for patients with poor bone quality and higher risk of infections.

Keyword

Femoral neck fractures; Bipolar hemiarthroplasty; Cemented stem; Cementless stem

MeSH Terms

Femoral Neck Fractures*
Femur Neck*
Femur*
Hemiarthroplasty*
Humans
Methods
Thigh

Figure

• 

  Fig. 1 (A) A 78-year-old woman with left hip pain after a fall. Left hip anteroposterior view shows transcervical femur neck fracture of Garden stage III with underlying osteoporotic change. Proximal cortical bone loss and widening of the diaphyseal canal are observed (Dorr type B). (B) She has undergone bipolar hemiarthroplasty using cemented stem (CPT stem).

• 

  Fig. 2 (A) A 66-year-old woman with right hip pain after a fall. Right hip anteroposterior view shows transcervical femur neck fracture of Garden stage IV. Femur shaft is funnel-shaped and diaphyseal canal is narrow (Dorr type A). (B) She has undergone bipolar hemiarthroplasty using cementless stem (Tri-Lock stem).

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