Cementless bipolar hemiarthroplasty for unstable intertrochanteric fractures in elderly patients.
BACKGROUND
Bipolar hemiarthroplasty for unstable intertrochanteric fractures in elderly patients is a viable option that can prevent the complications of an open reduction, such as nonunion and metal failure. This study evaluated the clinicoradiological results of cementless bipolar hemiarthroplasty for unstable intertrochanteric fractures in elderly patients.


METHODS
Forty hips were followed for more than 2 years after cementless bipolar hemiarthroplasty using a Porocoat® AML Hip System. The mean age was 78.8 years and the mean follow-up period was 40.5 months. The Harris hip score and postoperative hip pain were analyzed clinically. The radiological results were assessed using a range of indices.


RESULTS
At the last follow-up, the mean Harris hip score was 80.6 points. There were one case of hip pain and one case of thigh pain. Twenty-four cases (60%) showed no decrease in ambulation capacity postoperatively. Radiologically, there were 23 cases (57.5%) of fixation by bone ingrowth and 17 cases (42.5%) of stable fibrous fixation. There were no cases of osteolysis. Eleven cases (27.5%) of new bone formation were found around the stem. All stems were stable without significant changes in alignment or progressive subsidence.


CONCLUSIONS
The short-term results of cementless bipolar hemiarthroplasty in elderly patients with unstable intertrochanteric fractures were satisfactory.
Department of Orthopedic Surgery, Eulji University College of Medicine, Seo-gu, Daejeon, Korea.
Won Sik
WS
Choy
Jae Hoon
JH
Ahn
Joon-Hyuk
JH
Ko
Byoung Sup
BS
Kam
Do-Hyun
DH
Lee
D000203:Activities of Daily Living; D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D006615:Hip / Q000000981:diagnostic imaging; D006620:Hip Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D010147:Pain Measurement; D011182:Postoperative Care; D011474:Prosthesis Design; D011859:Radiography; D016138:Walking