Is an Early Hook Plate Better Than a Late Reconstruction for Type-V Acromioclavicular Separations?

2013 ◽  
Vol 3 (5) ◽  
pp. e8
Author(s):  
Charles Jobin
Keyword(s):  
Hook Plate ◽  
Type V ◽  
Better Than

scholarly journals Crossbar Technique for the Failed Clavicular Hook Plate Fixation in an Acute Acromioclavicular Joint Dislocation: Salvage for Acromial Fracture after Clavicular Hook Plate

2019 ◽  
Vol 22 (3) ◽  
pp. 149-153
Author(s):  
Kyoung Hwan Koh ◽  
Dong Ju Shin ◽  
Seong Mun Hwang
Keyword(s):  
Acromioclavicular Joint ◽  
Plate Fixation ◽  
Hook Plate ◽  
Acromioclavicular Joint Dislocation ◽  
Salvage Procedure ◽  
Subsequent Fracture ◽  
Ligament Augmentation ◽  
Clavicular Hook Plate ◽  
Acromial Fracture ◽  
Type V

We experienced acromial erosion and subsequent fracture after the treatment of Rockwood type V acromioclavicular dislocation with hook plate and coracoclavicular ligament augmentation. It was treated by using a surgical technique to address an acromial fracture and subsequent losses of reduction in acromioclavicular joint with two trans-acromial cortical screws (crossbar technique). The reduction state of acromioclavicular joint could be maintained by these two screws. Our crossbar technique could be considered as a good salvage procedure for the reduction loss caused by cutout or significant erosion of acromion after insertion of clavicular hook plate.

scholarly journals Hook plate with or without coracoclavicular ligament augmentation in the treatment of acute acromioclavicular separation

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Chung-Ting Liu ◽  
Ten-Fang Yang
Keyword(s):  
Plate Fixation ◽  
Functional Results ◽  
Hook Plate ◽  
Group I ◽  
Ligament Augmentation ◽  
Significant Difference ◽  
Before And After ◽  
Acromioclavicular Separation ◽  
Group Ii ◽  
Type V

Abstract Background Acromioclavicular (AC) separation can be treated with the use of a hook plate. Some studies have reported that coracoclavicular (CC) ligament augmentation is necessary to reduce the complications of hook plate fixation, whereas others recommend hook plate fixation alone without augmentation. The aim of this study was to compare the results and complications between these two groups. Methods This was an observational case-control study. Patients with acute (less than 2 weeks) Rockwood type V AC separation were treated with a hook plate at our hospital. A total of 105 cases received hook plate fixation with CC ligament augmentation (group I), and 112 cases received hook plate fixation without augmentation (group II). Constant-Murley scores were used to evaluate the function before and after implant removal, and radiographs were taken to evaluate the complications. The results and complications were compared between groups. Results Before removal, the Constant-Murley score was significantly higher in group I (mean, 50.1) than in group II (mean, 42.6) (p = 0.004); however, there was no significant difference between groups at 3 and 6 months after removal. The incidence of significant acromion osteolysis was higher in group II (65/112) than in group I (25/105). Before removal, the patients with significant acromion osteolysis had worse Constant-Murley scores than those of the patients without osteolysis in both groups. The incidence of peri-implant fracture of the hook plate was higher in group II (8/112) than in group I (1/105). Conclusion The patients without CC ligament augmentation had worse functional results before hook plate removal, a higher incidence of radiographic acromion osteolysis, and a higher incidence of peri-implant fractures than those patients with CC ligament augmentation. Therefore, CC ligament augmentation is highly recommended to improve short-term outcomes and decrease complications for Rockwood type V AC separation treated by hook plate.

scholarly journals Treatment Outcomes of Anterior Sternoclavicular Joint Dislocation using An Acromioclavicular Joint Hook Plate Versus a Locking Plate: A Retrospective Study.

2021 ◽  
Author(s):  
Yanzhen Qu ◽  
Xudong Xie ◽  
Wu Zhou ◽  
Tian Xia ◽  
Faqi Cao ◽  
...  
Keyword(s):  
Blood Loss ◽  
Acromioclavicular Joint ◽  
Locking Plate ◽  
Sternoclavicular Joint ◽  
Hook Plate ◽  
Plate Versus ◽  
Joint Dislocation ◽  
Female Patients ◽  
The Mean ◽  
Better Than

Abstract Background: We aimed to compare the efficacy and functional outcomes of using an acromioclavicular joint hook plate (AJHP) versus a locking plate (LP) in the treatment of anterior sternoclavicular joint dislocation.Methods: Seventeen patients with anterior sternoclavicular joint dislocation were retrospectively analyzed from May 2014 to September 2019. Six patients were surgically treated with an AJHP, and 11 were surgically treated with an LP. Five male and one female patients comprised the AJHP group, and nine male and two female patients comprised the LP group. The mean age of all patients was 49.5 years.Results: Reduction and fixation were performed with AJHP or LP in all 17 patients. All patients were followed up for a mean duration of 14.4 months. There were no reported complications, wound infections, or instances of plate or screw breakage. The mean operative blood loss, operative time, and length of incision in the AJHP group were significantly better than those in the LP group. Shoulder girdle movement of the AJHP group was significantly better than that of the LP group.Conclusions: This study revealed that AJHP facilitated glenohumeral joint motion, reduced the risk of rupture of mediastinal structures, required a shorter incision, and had less blood loss and a shorter duration of operation compared with LP. However, some deficiencies require further improvement.Trial registration:

Acute surgical treatment of acromioclavicular dislocation type V with a hook plate: superiority to late reconstruction

2013 ◽  
Vol 22 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Johan von Heideken ◽  
Helena Boström Windhamre ◽  
Viveka Une-Larsson ◽  
Anders Ekelund
Keyword(s):  
Surgical Treatment ◽  
Hook Plate ◽  
Acromioclavicular Dislocation ◽  
Dislocation Type ◽  
Type V

scholarly journals Treatment Outcomes of Anterior Sternoclavicular Joint Dislocation Using an Acromioclavicular Joint Hook Plate Versus a Locking Plate: A Retrospective Study

2021 ◽  
Author(s):  
Yanzhen Qu ◽  
Xudong Xie ◽  
Wu Zhou ◽  
Tian Xia ◽  
Faqi Cao ◽  
...  
Keyword(s):  
Blood Loss ◽  
Acromioclavicular Joint ◽  
Locking Plate ◽  
Sternoclavicular Joint ◽  
Hook Plate ◽  
Plate Versus ◽  
Joint Dislocation ◽  
Female Patients ◽  
The Mean ◽  
Better Than

Abstract Background: We aimed to compare the efficacy and functional outcomes of using an acromioclavicular joint hook plate (AJHP) versus a locking plate (LP) in the treatment of anterior sternoclavicular joint dislocation.Methods: Seventeen patients with anterior sternoclavicular joint dislocation were retrospectively analyzed from May 2014 to September 2019. Six patients were surgically treated with an AJHP, and 11 were surgically treated with an LP. Five male and one female patients composed the AJHP group, and nine male and two female patients composed the LP group. The mean age of all patients was 49.5 years.Results: Reduction and fixation were performed with AJHP or LP in all 17 patients. All patients were followed up for a mean duration of 14.4 months. There were no reported complications, wound infections, or instances of plate or screw breakage. The mean operative blood loss, operative time, and length of incision in the AJHP group were significantly better than those in the LP group. Shoulder girdle movement of the AJHP group was significantly better than that of the LP group.Conclusions: This study revealed that AJHP facilitated glenohumeral joint motion, reduced the risk of rupture of mediastinal structures, required a shorter incision, and had lesser blood loss and a shorter duration of operation compared with LP. However, some deficiencies require further improvement.

Time and Latitude in South Africa

1972 ◽  
Vol 1 ◽  
pp. 27-38
Author(s):  
J. Hers
Keyword(s):  
South Africa ◽  
Cape Town ◽  
Astronomical Observations ◽  
Royal Observatory ◽  
The Republic ◽  
Astronomical Determination ◽  
Limited Accuracy ◽  
Better Than

In South Africa the modern outlook towards time may be said to have started in 1948. Both the two major observatories, The Royal Observatory in Cape Town and the Union Observatory (now known as the Republic Observatory) in Johannesburg had, of course, been involved in the astronomical determination of time almost from their inception, and the Johannesburg Observatory has been responsible for the official time of South Africa since 1908. However the pendulum clocks then in use could not be relied on to provide an accuracy better than about 1/10 second, which was of the same order as that of the astronomical observations. It is doubtful if much use was made of even this limited accuracy outside the two observatories, and although there may – occasionally have been a demand for more accurate time, it was certainly not voiced.

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