Dariush G Savadkoohi MD.

Tehran University of

Medical Sciences,

Sina Hospital

Comparision of Osteosynthesis of femoral

neck fractures by dynamic hip screw

(DHS) fixation and multiple cannulated

screws

PURPOSE OF THE STUDY

The aim of this randomized clinical trial

study was to evaluate patients treated by

osteo- synthesis for intra-capsular femoral

neck fractures with Dynamic Hip Screw

and Multiple cannulated screws

MATERIAL and Methods From 2006-2011 , 114 patients with femoral neck

fractures were operated. 64 by dynamic hip screw and

50 patients with multiple cannulated screws.

The average follow-up was 3.5 years.

Evaluation regard to the occurrence of late

complications in relation to the length of time between

injury and surgery, quality of fracture reduction,

reduction failure and implant failure and nonunion of

neck of femur and reoperation

A Case

32 y

Male

Car accident

N/V intact

No wound

Case

CASE

CASE

CASE

1 year follow up

RESULTS In DHS group, Bone

union without

complications was achieved

in 73.4 % of the patients

within 12 months of

surgery. Late complications

were found in 26.% .

RESULTS In the screw group,

fixation failure were seen

in 40% and late

complications were seen in

52%. The difference

between two groups seems

to be statistically

important.

Screw failure

DISCUSSION

The quality of reduction had a greater

effect on union than comparing with

femoral head necrosis. The DHS is

economic and available, with sufficient

results whose comparisons with the

literature data show that results are good .

In overall , results of screw fixation is lower

than DHS fixation

Thank you