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2 "Unreamed humeral nail"
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The Treatment Of Humeral Shaft Fracture With Rertograde Ao Unreamed Humeral Nail
Tae Woo Park, Sung Do Cho, Young Sun Cho, Bum Soo Kim, Sogu Lew, Moon Chan Kim, Ki Young Kim
J Korean Soc Fract 2002;15(3):398-403.   Published online July 31, 2002
DOI: https://doi.org/10.12671/jksf.2002.15.3.398
AbstractAbstract PDF
PURPOSE
To evaluate the results of the treatment of humeral shaft fractures using retrograde AO Unreamed Humeral Nail(UHN).
MATERIALS AND METHOD
From Apr. 1998 and Aug. 2001, 18 humeral shaft fractures were treated with retrograde AO UHN. All fractures were classified according to the AO classification. The results were analyzed by bony union time, range of motion and complication.
RESULTS
There were eleven cases of A3, two B2, one B3, four A2 humeral middle shaft fractures according to the AO classification. The mean bony union time was 12.2 weeks(range;9-16 weeks). All patients regained full range of motion of the shoulder joint and the elbow joint but 2 patients with intraopenatively ruptured capsule had transient elbow motion limitation. Complications were iatrogenic fractures at the entry portal in 2 patients(15%), transient shoulder pain in 4 patients(30.7%), nonunion in 1 patient(7.6%), required bone graft and internal fixation after removal of the nail at 13 months postoperatively.
CONCLUSION
The treatment of humeral shaft fracture with retrograde AO unreamed humeral nail is one of the good options to reduce the rate of non-union or delayed union by compression effect if the intraoperative errors is prevented.
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Treatment of Humeral Shaft Fracture with AO Unreamed Humeral Nail
In Heon Park, Kee Byoung Lee, Kyung won song, Jin Young Lee, Min Choi
J Korean Soc Fract 1999;12(2):429-434.   Published online April 30, 1999
DOI: https://doi.org/10.12671/jksf.1999.12.2.429
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We performed a retrospective study of nine humeral shaft fractures which were treated by interlocking intramedullary nailing, the AO UHN (Unreamed Humeral Nail) system between March 1996 and February 1997 with more than one year of follow up. AO UHN inserted by either antegrade or retrograde technics through limited incisions followed by insertion of 2 proximal and distal Interlocking screws. Compression between fractured fragments was achieved in the non-comminuted and indicated cases. Immediate postoperately, soft shoulder immobilizer was applied and rehabilitation was started with active shoulder motion exercise few days to 1 week postoperately as soon as patient could tolerate pain. Union occurred at average of 13 weeks except one expired case with pathologic fracture due to advanced metastatic cancer. Pain relief and functional restoration were rated as good to excellent in most cases. Interlocking intramedullary nailing using AO UHN for the humeral shaft fractures usually provides immediate stability of the fracture and can be accomplished with a closed technique, minimum morbidity, with a resultant early return of function of the extremity. Therefore we recommend AO UHN for the treatment of the humeral shaft fractures if available without hesitation.
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