Hoon-Sang Sohn; Byung Chul Jo

doi:10.12671/jkfs.2011.24.4.335

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Original Article
Results of Hook Plate Fixation of Unstable Distal Clavicle Fractures: Hoon-Sang Sohn, M.D., Byung Chul Jo, M.D.; Journal of the Korean Fracture Society 2011;24(4):335-340.
DOI: https://doi.org/10.12671/jkfs.2011.24.4.335
Published online: October 30, 2011

Department of Orthopaedic Surgery, National Medical Center, Seoul, Korea.

Address reprint requests to: Hoon-Sang Sohn, M.D. Department of Orthopaedic Surgery, National Medical Center, Euljiro, 243, Jung-gu, Seoul 100-799, Korea. Tel: 82-2-2260-7192, Fax: 82-2-2278-9570, shshs8383@naver.com

• Received: April 11, 2011 • Revised: May 12, 2011 • Accepted: July 14, 2011

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Abstract
REFERENCES

Abstract

Purpose
This study evaluated the clinical and radiological outcomes of unstable distal clavicular fractures treated with an AO Hook plate.
Materials and Methods
From March 2009 to October 2010, sixteen patients with distal clavicular fractures underwent open plating using an AO Hook plate. The clinical outcomes were assessed by measuring the UCLA scores and KSS sores, and the radiological outcomes were evaluated using simple radiographs at the final follow-up.
Results
Fracture union was obtained in all patients at an average of 13.9 weeks (range, 9~20 weeks). The UCLA scoring system showed excellent results in 9 cases and good results in 7. The average KSS scores of distal clavicular fractures were 95.5. At the final follow-up, subacromial osteolysis developed in 11 cases (68.7%) of whom 3 suffered from pain around the acromion. Other complications occurred in 4 patients: one had a fracture adjacent to the plate proximally, two had a stiff shoulder with subacromial impingement, and one had hypoesthesia around the surgical wound.
Conclusion
Unstable distal clavicular fractures treated with a Hook plate provided rigid fixation and satisfactory outcomes considering the high union rate. Nevertheless, potential postoperative complications related to morphometric properties of the plate should be considered.
Key words: Distal clavicular fracture, Hook plate, Subacromial osteolysis

REFERENCES

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Fig. 1

(A) 73-year-old male with a type IIb fracture of the distal clavicle.

(B) The distal clavicular fracture was stabilized with the Hook plate.

(C) Postoperative radiographs at 4 months showed union of the fracture.

Fig. 2

(A) Neer type IIa fracture of clavicle in a 39-year-old man.

(B) Shoulder radiograph obtained immediately postoperatively showed the normal cortical surface of acromion.

(C) At 13 months postopertively, a radiograph showed subacromial radiolucent lesion around the hook tip.

Fig. 3

(A) Clavicular fracture at the medial aspect of the hook plate.

(B) At 18 weeks postoperatively, a radiograph showed union of clavicular midshaft fracture.

Table 1

Details of the 16 cases

Figure & Data

REFERENCES

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Results of Hook Plate Fixation of Unstable Distal Clavicle Fractures

J Korean Fract Soc. 2011;24(4):335-340. Published online October 31, 2011

DOI: https://doi.org/10.12671/jkfs.2011.24.4.335

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Results of Hook Plate Fixation of Unstable Distal Clavicle Fractures

Fig. 1 (A) 73-year-old male with a type IIb fracture of the distal clavicle. (B) The distal clavicular fracture was stabilized with the Hook plate. (C) Postoperative radiographs at 4 months showed union of the fracture.

Fig. 2 (A) Neer type IIa fracture of clavicle in a 39-year-old man. (B) Shoulder radiograph obtained immediately postoperatively showed the normal cortical surface of acromion. (C) At 13 months postopertively, a radiograph showed subacromial radiolucent lesion around the hook tip.

Fig. 3 (A) Clavicular fracture at the medial aspect of the hook plate. (B) At 18 weeks postoperatively, a radiograph showed union of clavicular midshaft fracture.

Fig. 1

Fig. 2

Fig. 3

Results of Hook Plate Fixation of Unstable Distal Clavicle Fractures

Table 1

Details of the 16 cases

Table 1 Details of the 16 cases