PURPOSE The purpose of our study is to compare the radiographic and clinical outcomes with respect to acromioclavicular (AC) joint dislocation depending on the surgical method: Hook plate (HP) versus TightRope (TR). MATERIALS AND METHODS Between May 2009 and May 2012, 51 patients with Rockwood type III-V lesions received clinical and radiographic follow-up. Patients were divided into two groups according to the surgical methods (HP: n=32; TR: n=19). Radiological follow-up included comparative coracoclavicular distance (CCD) measurements as a percentage of the uninjured shoulder. For clinical follow-up, a standardized functional shoulder assessment with the Constant score, University of California at Los Angeles (UCLA) score, and Korea shoulder score (KSS) were carried out. RESULTS Comparing the functional results, no differences were observed between the two groups (Constant score: HP, 78.5; TP, 81.4; UCLA score: HP, 29.2; TP, 29.9; KSS: HP, 79.2; TP, 80.7). Time to restoration of the range of motion (ROM) above shoulder level was longer in the HP group than in the TR group. However, the ROM at 1 year postoperation and final follow-up revealed similar results between the two groups. The AC joints were well reduced in both groups, the CCD increased to 44.7% in the HP group and to 76.5% in the TR group at the final follow-up; however, no one was significantly superior to the others. Furthermore, there were 8 cases (25.0%) and 5 cases (26.3%) of AC joint arthritis in the HP group and TR group, respectively. However, the observed AC joint arthritis has a poor correlation between clinical symptom and radiological results in both groups. CONCLUSION Both HP and TR fixation could be a recommendable treatment option in acute unstable AC joint dislocation. Both groups showed excellent radiologic and functional results at the final visit. Moreover, there was no significant difference in statistics, except for the time to restoration of ROM above shoulder level.
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Hook plate fixation is a treatment method for the displaced distal clavicle fracture with favorable results regarding bone union and shoulder function, however possible complications include impingement syndromes, subacrormial erosions, acromial fractures, and periprosthetic fractures. In this report, we observed 3 cases of periprosthetic fracture after hook plate fixation. All cases of periprosthetic fractures were initiated at the medial end screw holes. The causes of these periprosthetic fractures appeared to be the off centered fixation of medial end screws near the anterior or posterior cortex which were specific during operations with hook plates with more than 6 holes and the increased stress on the medial end screw by over-reduced or inferiorly reduced position of the distal end of the clavicle by the hook plate.
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Comparison of a novel hybrid hook locking plate fixation method with the conventional AO hook plate fixation method for Neer type V distal clavicle fractures Joongbae Seo, Kang Heo, Seong-Jun Kim, Jun-Kyom Kim, Hee-Jung Ham, Jaesung Yoo Orthopaedics & Traumatology: Surgery & Research.2020; 106(1): 67. CrossRef
Comparative analysis of a locking plate with an all-suture anchor versus hook plate fixation of Neer IIb distal clavicle fractures Joong-Bae Seo, Kwon-young Kwak, Jae-Sung Yoo Journal of Orthopaedic Surgery.2020;[Epub] CrossRef
Comparison of Locking Compression Plate Superior Anterior Clavicle Plate with Suture Augmentation and Hook Plate for Treatment of Distal Clavicle Fractures Jun-Cheol Choi, Woo-Suk Song, Woo-Sung Kim, Jeong-Muk Kim, Chan-Woong Byun Archives of Hand and Microsurgery.2017; 22(4): 247. CrossRef
Anteromedial force to the knee in an extended position can cause an avulsion fracture of the proximal fibula with combined injuries to the posterolateral ligaments. Avulsion fractures of the proximal fibula are rare and current management of these fractures is based on few descriptions in literature. Various surgical methods of fixation for these fractures have been reported, but there is still no standard treatment modality. Anatomic reduction of these fractures is technically difficult, and failure of reduction may cause posterolateral instability, secondary arthritis and other complications. We present our experience with two such cases of comminuted avulsion fractures of the proximal fibular with posterolateral ligament ruptures surgically fixated with a locking compression hook plate and non absorbable sutures.
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PURPOSE To report on the complications of hook-plate fixation for distal clavicle fractures. MATERIALS AND METHODS Eighteen patients who underwent surgery for distal clavicle fracture with a hook-plate from April 2008 to April 2011 were enrolled with a minimum of 4 months follow-up. The reduction was qualified and evaluated according to the radiologic findings. We analyzed the results by UCLA score, Kona's functional evaluation, and VAS pain score. RESULTS By radiologic evaluation, 17 of 18 cases showed anatomical reduction and solid unions. Although satisfactory results were found in the clinical study as shown by the UCLA score, Kona's functional evaluation, and VAS pain score, complications arose in 7 cases, including osteolysis of the acromion in 2 cases, nonunion in 1 case, periprosthetic fracture in 2 cases, subacromial pain in 1 case, and skin irritation in 1 case. 2 cases of all required reoperation. CONCLUSION To reduce the complications of the hook-plate, a precise surgical technique and the choice of an appropriate size for the hook-plate are needed. We suggest that early removal of the plate is necessary to decrease the risk of subacromial impingement and erosion in hook-plate fixation.
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Clinical outcomes of bending versus non-bending of the plate hook in acromioclavicular joint dislocation Min Su Joo, Hoi Young Kwon, Jeong Woo Kim Clinics in Shoulder and Elbow.2021; 24(4): 202. CrossRef
Surgical Treatment of Unstable Distal Clavicle Fractures: Comparison of Transacromial Pin Fixation and Hook Plate Fixation Young Sung Kim, Ho Min Lee, Han Gil Jang The Journal of the Korean Shoulder and Elbow Society.2013; 16(2): 123. CrossRef
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.
PURPOSE To compare the clinical and radiological outcomes of two surgical methods with tension band wire and Hook plate for unstable distal clavicle fractures. MATERIALS AND METHODS Thirty patients with type II distal clavicle fractures were evaluated, who were operated with tension band wire (Group I) and Hook plate (Group II) fixation, from June 2005 to June 2009, and could be followed-up for more than 1 year after operation. The reduction and union were evaluated by the immediate post-operative and final radiographs. The functional outcome was evaluated by Kona's system and Constant-Murley scoring system. RESULTS All 30 cases showed bony union. By Kona's functional evaluation, there were 16 cases with excellent and good results in Group I and 14 cases in Group II. The average Constant score was 88.3 (71~100) in Group I and 89.6 (72~100) in Group II, but there was no significant difference in both groups. As complications, there were 2 case with subacromial impingement, and 1 case showed subacromial erosion. There was no K-wire migration, deep infection and acromioclavicular joint arthritis. CONCLUSION Tension band and Hook plate fixation technique gave satisfactory clinical and radiological results in patients with type II distal clavicle fractures. These results suggest that tension band wire and Hook plate fixation technique seems to be an effective method for type II distal clavicle fracture. But we think thal early removal of plate is necessary due to risks for subacromial impingement and erosion in Hook plate fixation.
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Hook Plate Fixation for Unstable Distal Clavicle Fractures: A Prospective Study Kyung-Cheon Kim, Hyun-Dae Shin, Soo-Min Cha, Yoo-Sun Jeon The Journal of the Korean Shoulder and Elbow Society.2011; 14(1): 6. CrossRef
PURPOSE To evaluate the result of distal clavicle fracture treated by Hook plate (LCP clavicle hook plate, Synthes(R), Paoli, Switzerland). MATERIALS AND METHODS 10 patients with distal clavicle fracture treated by Hook plate from April 2008 to March 2010 were analyzed. The average follow-up period was 10 (range 4 to 26) months. The reduction was qualified and evaluated according to the immediate post-operative, final radiographs. We analyze the result by UCLA score and Kona's functional evaluation. RESULTS By radiologic evaluation, all cases showed anatomical reduction and solid union. By Kona's functional evaluation, there are 7 cases with excellent results, 3 cases with good results. The UCLA score was average 33.3 (range 29 to 35) points followed by 6 excellent cases, 4 good cases. As complication, 1 case showed post-operative clavicle shaft fracture and 1 case showed acromial osteolysis on X-rays. We found no complications such as skin irritation, infection, loosening of screws, and plate failure. CONCLUSION The Hook plate fixation for distal clavicle fracture is considered effective method for satisfactory reduction and rigid fixation, a lower incidence of nonunion and excellent clinical result.
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Comparison of Locking Compression Plate Superior Anterior Clavicle Plate with Suture Augmentation and Hook Plate for Treatment of Distal Clavicle Fractures Jun-Cheol Choi, Woo-Suk Song, Woo-Sung Kim, Jeong-Muk Kim, Chan-Woong Byun Archives of Hand and Microsurgery.2017; 22(4): 247. CrossRef