• Clinics in Shoulder and Elbow
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• v.13 no.1
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• pp.1-6
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• 2010

Purpose: To evaluate the results and complications of antegrade intramedullary interlocking nailing in humerus shaft fractures. Materials and Methods: We evaluated the clinical outcomes, radiologic results and complications in 47 patients with humerus shaft fracture treated with antegrade intramedullary interlocking nailing, and followed up until bony union. Bony union was confirmed by serial plain radiographs and the clinical outcomes were assessed according to the ASES scoring system. Results: Bony union was confirmed in 41 (87.2%) out of a total 47 patients, and the mean union period was 14.5 weeks. Major complications were as follows: 6 non-union, 3 delayed union, 2 intraoperative posterior cortex fracture in the distal humerus and 2 permanent shoulder pain, including 1 case of adhesive capsulitis. The clinical outcomes were as follows: 29 excellent, 11 good, 4 fair and 3 poor. Satisfactory outcomes were demonstrated in 40 patients (85.1%). Conclusion: Anterograde intramedullary interlocking nailing as treatment for humerus shaft fracture showed satisfactory bony union and clinical outcomes. It is considered an efficacious treatment, especially in patients with associated injury, such as multiple fractures and segmental fracture.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2003.03a
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• pp.25-25
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• 2003

• Clinics in Shoulder and Elbow
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• v.16 no.2
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• pp.107-114
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• 2013

Purpose: This study is designed to evaluate the clinical and radiographical results for the displacement of fracture fragments after interlocking intramedullary nailing in humeral shaft fractures. Materials and Methods: We retrospectively reviewed the results of 8 cases of humeral shaft fractures that have displacements of over 10 mm and under 20 mm after interlocking intramedullary nailing between July 2004 and August 2011. The mean age was 54.1 years (range, 43 to 70 years) and there were 3 male and 5 female patients. Radiographically, the time to bony union, change of displacement and angulation of the fracture site, and degree of improvement of these two factors were measured. Clinically, the range of motion of shoulder and elbow joints, postoperative pain and complications were evaluated. Results: All cases showed complete bony union in last follow-up. The mean time to bony union was 16.1 weeks. At the last follow-up, almost all cases had normal range of motion of shoulder and elbow joints. But, one case had stiffness of shoulder joint. Therefore, arthroscopic capsular release and manipulation was performed. One case had transient shoulder pain and the other case had transient elbow pain. In the two cases, pull-out of proximal interlocking screw were noted, but they finally had bony union. Conclusion: Although considerable displacement of fracture fragments after interlocking intramedullary nailing in humeral shaft fractures was present, we had excellent radiographical and clinical outcomes. Therefore, an additional procedure, such as open reduction or another fixation for the fracture site, was not necessary.

• Journal of Korean Foot and Ankle Society
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• v.12 no.1
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• pp.80-85
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• 2008

Purpose: To evaluate and compare the outcome between interlocking IM nailing and LCP fixation in the treatment of distal metaphyseal tibial fracture. Materials and Methods: From January 2000 to December 2007, 17 patient were treated by interlocking IM nail and 13 patient were treated by LCP fixation for distal metaphyseal tibial fracture. Results: According to AO classification, there were 2 type A1 fracture (12%), 6 type A2 fracture (36%), 3 type A3 fracture (18%), 4 type B1 fracture (24%), 1 type B3 fracture (6%), 1 type C1 fracture (6%) in interlocking IM nailing group and 1 type A2 fracture (7.7%), 2 type A3 fracture (15.4%), 3 type B1 fracture (23%), 3 type B2 fracture (23%), 3 type C1 fracture (23%), 1 type C2 fracture (7.7%) in LCP fixation group. The clinical functional outcome (according to AOFAS score) is 75.6 point in IM nailing group and 81.5 point in LCP fixation group. In IM nailing group, 65% of patient showed satisfactory result and In LCP fixation group, 77% of patient showed satisfactory result. Conclusion: There is no difference on clinical results between IM nailing and MIPPO (minimal invasive percutaneous plate osteosynthesis) group in the treatment of distal tibia fracture. But MIPPO group have higher subjective satisfactory score and less complication rate. The weakness of our study is a small case number and limited follow-up and we believe a better designed prospective study will be needed.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.6 no.1
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• pp.1-9
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• 2013

Purpose: The purpose is to perform objective evaluation for rotator cuff using ultrasonography and validate factors influencing cuff integrity as well as efficacy of follow-up ultrasonography after unreamed antegrade intramedullary nailing for humerus fracture. Materials and Methods: Seventeen patients with an average age of $55.7{\pm}18.6$ years underwent antegrade intramedullary nailing for humerus fracture and follow-up ultrasonography of shoulder joint. Mean follow-up period was $43.5{\pm}32.2$ months. Intraoperative evaluation for preoperative cuff tear was performed, of which four cuffs were repaired by single row repair technique. Clinical evaluation included visual analogue scale (VAS), range of motion, Korean Shoulder Scoring System (KSS) and American Shoulder and Elbow Society (ASES) score. Ultrasonographic evaluation was performed on cuff integrity and protrusion of proximal nail tip as well. Radiographic evaluation included time to union, protrusion of proximal nail tip and migration of proximal interlocking screw which could affect shoulder joint function. Results: Mean VAS at last follow-up was $1.65{\pm}1.84$ points. Range of motion showed forward flexion of $137.0{\pm}33.5^{\circ}$, external rotation of $43.5{\pm}12.7^{\circ}$ and internal rotation of $16.4{\pm}2.0^{\circ}$ while KSS score and ASES score were $79.6{\pm}20.7$ and $83.7{\pm}17.0$ points, respectively. Bone union was demonstrated in all cases and average time to union was $3.4{\pm}1.3$ months. Migration of proximal interlocking screw was shown in 6 cases (35%). On ultrasonographic evaluation, there were normal in 8 (47%), weaving in 4 (24%), partial tear in 5 cases (29%), but no complete tear. Protrusion of proximal nail tip was demonstrated in 8 cases (47%) on plain radiographs whereas in 11 cases (65%) on ultrasonography and was associated with increasing age (p=0.038). Ultrasonographic weaving and partial tear was associated with protrusion of proximal nail tip (p=006), but not with repair of preoperative tear (p>0.05). Conclusion: Because weaving and partial tear on ultrasonography originated from protrusion of proximal nail tip, careful insertion of nail and meticulous repair of cuff during operation lead to stable fixation with satisfactory recovery of shoulder function follow-up ultrasonography can be a useful tool for evaluating protrusion of nail tip and rotator cuff tear, of which diagnosis is difficult on plain X-ray after antegrade intramedullary nailing for humerus fracture.

• Clinics in Shoulder and Elbow
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• v.6 no.1
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• pp.27-36
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• 2003

Antegrade interlocking intramedullary nailing (AIIN) for the humeral shaft fracture can induce shoulder pain and decrease of shoulder function postoperatively. The purpose of this study was to estimate the outcome of the shoulder functions after AIIN through the rotator interval between the subscapularis and the supraspinatus to decrease the shoulder pain. Out of consecutive 43 cases that underwent AIIN 42 had been followed for two years or more. Among them we analysized 40 cases of 39 Patients excluding two cases of Pathologic fractures. The average was 47 years. There were 17 men and 23 women. The average follow-up was 34 months. Open nailing was performed in 26 fractures and closed nailing in 14. Bone graft was done in 7 fractures with open nailing. With a single operation, all but two patients achieved osseous union. Average pain score with visual analog scale was one (range; 0∼4) postoperatively By the Neer's score 37 patients received a excellent or satisfactory results while 3 patients' unsatisfactory or failed results. By the functional score of ASES (American Shoulder and Elbow Society) 6 cases received the fair or poor results. Except three cases with persistent nerve palsy and one case of technique failure with protruded nail over humeral head, all patients could achieved satisfactory results with Neer's score and 35 cases (94%) satisfactory results with functional score of ASES. An insertion of antegrade nail to the rotator interval was recommended for better shoulder functions and less pain postoperatively.