A comparison of modified Knowles pins and cannulated cancellous screws for the treatment of nondisplaced or impacted femoral neck fractures.
A prospective study was performed comparing modified Knowles pins to cannulated cancellous screws for the treatment of nondisplaced and impacted femoral neck fractures. Forty-five impacted or nondisplaced fractures were identified: twenty-five were stabilized with modified Knowles pins and twenty with cannulated cancellous screws. Patient follow-up averaged twenty-four months (range 12 to 46 months) or until reoperation. Six patients (13%) required reoperation; these failures were evenly divided between the two groups. The remainder of patients (twenty-two patients (88%) in the Knowles pin group and seventeen patients (85%) in the cannulated screw group) were comparable with regard to functional outcome.
Department of Orthopaedic Surgery, Hospital for Joint Diseases, New York City.
K L
KL
Jarolem
K J
KJ
Koval
J D
JD
Zuckerman
G
G
Aharonoff
D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D001858:Bone Nails / Q000592:standards*; D001863:Bone Screws / Q000592:standards*; D015897:Comorbidity; D005265:Femoral Neck Fractures / Q000145:classification / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000601:surgery*; D015577:Geriatric Assessment; D006801:Humans; D015601:Injury Severity Score; D011446:Prospective Studies; D011859:Radiography; D012086:Reoperation / Q000706:statistics & numerical data; D017211:Treatment Failure