Unilateral external fixator in the treatment of lower third humeral shaft fractures.
OBJECTIVE
To retrospectively analyze the effect of unilateral external fixators in the treatment of lower third humeral shaft fractures.


METHODS
From October 1997 to October 2003, 33 patients aged 15 -70 years (average 31 years) with lower third humeral shaft fractures were treated with unilateral external fixators. There were 9 spiral fractures (type A1), 1 oblique fracture (type A2), 3 transverses fractures (type A3) and 20 comminuted fractures (11 type B1, 9 type B2) according to AO classification. Fifteen cases were treated with open reduction and limited internal fixation and fixation with external fixators, 10 cases treated with open reduction and fixation with external fixators, and 8 cases treated with closed reduction and fixation with external fixators. Nerve exploration was undertaken in 9 cases with preoperative radial nerve injury. External fixators were removed after bone healing. The average follow-up was 18 months with a range from 8 to 24 months.


RESULTS
The time of bone healing ranged 11-22 weeks (average 14 weeks). The latest follow-up showed the functions of 9 cases of preoperative radial nerve injury and of 2 cases postoperative radial nerve injury and the function of elbow were recovered to normal. There were only 7 cases of superficial infection at pin hole, which was subsided by using oral antibiotics and pin-hole care with mild disinfectants.


CONCLUSIONS
Fixation with unilateral external fixators combined with open reduction and limited internal fixation has a good effect in the treatment of lower third humeral shaft fractures.
Li
Zhen-zhou
ZZ
Department of Orthopedics, The 304th Clinical Branch of the General Hospital of PLA, Beijing, China. lizhenzhou304@yahoo.com.en
Hou
Shu-xun
SX
Wu
Ke-jian
KJ
Zhang
Wei-jia
WJ
Li
Wen-feng
WF
Shang
Wei-lin
WL
Wu
Wen-wen
WW
D000293:Adolescent; D000328:Adult; D000368:Aged; D016267:External Fixators; D005260:Female; D006801:Humans; D006810:Humeral Fractures / Q000150:complications / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D020425:Radial Neuropathy / Q000209:etiology; D012189:Retrospective Studies