Intramedullary compression device for proximal ulna fracture

Hong, Choon Chiet; Han, Fucai; Decruz, Joshua; Pannirselvam, Vinodhkumar; Murphy, Diarmuid

doi:10.11622/smedj.2015027

Cited by 10 publications

(8 citation statements)

References 11 publications

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“…Wadsworth [23] reported a 100% union in six patients using a partially threaded intramedullary screw in an olecranon fracture or osteotomy, and a full ROM was observed at 1-year follow-up. Johnson et al [24] also reported that full motion was possible in a group of 28 patients, and Hong et al [25] published a case report showing good results with intramedullary screw fixation in a proximal ulna fracture with a dorsal wound. With this in mind, we have a question whether surgery is possible using HCS and Steinmann pins, so we have verified the experiment measuring bending strength by using sawbone.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Bending Strength among Plate, Steinmann Pin, and Headless Compression Screw Fixations for Proximal Ulnar Shaft Fracture in Sawbones

Han¹,

Oh²,

Um³

2020

Arch Hand Microsurg

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Purpose: Although plate osteosynthesis is commonly used to treat proximal ulna fracture, its treatment method is controversial because of complications such as large incision, long operation time, and soft tissue injury. Therefore, intramedullary headless compression screw (HCS) and Steinmann pin are considered as alternative treatment options. In this study, we aim to compare bending strength of plate and cortical screws, HCS, and Steinmann pin for proximal ulnar shaft fracture with sawbone. Methods: Transverse type fractures were made intentionally at the distal 7 cm from the proximal end of ulna sawbones and fixated with plate, HCS, and Steinmann pin after reduction. Three-point bending tests were performed with total of 21 sawbones, seven pieces for each group. Results: Average ultimate bending strength for each group was as follows; 521.7N for plate fixation group, 706.4N for HCS fixation group, and 812.6N for Steinmann pin fixation group. Statistically significant results were observed among the three groups (p<0.01). When two groups were compared separately, Steinmann pin fixation and plate fixation (p<0.01), Steinmann pin and HCS fixation (p=0.047) showed statistical significance. There was a significant trend between HCS and plate fixation group (p=0.064).Conclusion: HCS and Steinmann pin fixation showed higher bending strength when compared to plate fixation for proximal ulnar shaft fracture in sawbone. Although further studies are needed, HCS and Steinmann pin fixation are promising fixation methods that may be used as an alternative to plate fixation.

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Section: Discussionmentioning

confidence: 99%

Comparison of Bending Strength among Plate, Steinmann Pin, and Headless Compression Screw Fixations for Proximal Ulnar Shaft Fracture in Sawbones

Han¹,

Oh²,

Um³

2020

Arch Hand Microsurg

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“…Fracture dislocation may occur as a result, changing the treatment strategy. 3 In order to have a successful functional outcome, the articular surface must be anatomically restored, the elbow extensor mechanism repaired, joint stability and motion restored, and stiffness and other problems avoided. Olecranon fracture therapy now includes a variety of options.…”

Section: Introductionmentioning

confidence: 99%

Determination of Functional Outcomes of Displaced Olecranon Fracture Fixed with Intermedullary Partially Threaded Screw Augmented with Tension Band Wiring

Makki¹,

Khan²,

Saud³

et al. 2021

PJMHS

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Introduction: Orthopaedic injuries involving the olecranon are among the most often encountered in the emergency department. Objective: To determine the functional outcomes of displaced olecranon fracture fixed with intermedullary partially threaded screw augmented with tension band wiring Material and methods: This Descriptive/multicentric case series was conducted in Department of Orthopedics, Bahawal Victoria Hospital/Civil (Sadiq Abbasi) Hospital, Bahawalpur during June 2019 to June 2021. Patients who came through the emergency department and met the inclusion criteria were enrolled and given informed permission after clearance from the hospital's ethics committee. During general anesthesia or a biere’s block, all patients received tension band wire and intramedullary screw fixation. Results: Functional outcomes of displaced olecranon fracture fixed with intermedullary partially threaded screw augmented with tension band wiring was recorded as excellent in 57.39%(n=66), 32.17%(n=37) had good outcome, 10.44%(n=12) had fair outcome. Conclusion: We concluded that that functional outcomes of displaced olecranon fracture fixed with intermedullary partially threaded screw augmented with tension band wiring is good; however, validation is required through other local studies. Key words: Olecranon fracture, Intramedullary partially threaded screw, Tension band wiring, and Campbell’s posterolateral approach

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“…The proximal and upper thirds of the ulnar fractures are surgically treated with open reduction and internal fixation In some cases if the fragments are not displaced, a simple splint immobilizing the forearm and preventing the elbow joint movements is adequate for rehabilitation (Brownhill et al, 2009). Variability of the fractures determine the suitable implants such as plates (double or single), intramedullary nails, intramedullary screws and tension band wires (Brownhill et al;Hong et al, 2015;Niéto et al, 2015;Fuller, 2016). Each implant can maintain its stiffness and stability when properly selected (Windisch et al, 2007a,b;Melamed et al).…”

Section: Introductionmentioning

confidence: 99%

Surgical Importance of Radiographically Aided Morphometry of the Proximal Ulna

Erdem

2020

Int. J. Morphol.

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Huseyin ErdemERDEM, H. Surgical importance of radiographically aided morphometry of the proximal ulna. Int. J. Morphol., 38(2):299-304, 2020. SUMMARY:This study was conducted to define the proximal ulnar morphometry with respect to dorsal and intramedullary implant design. Eighty two dry Anatolian ulnae were evaluated by both the traditional and digital morphometric analysis methods. Also the medullary cavities and cortical bone thicknesses were measured from radiographic images. The mean value of ulnar length (UL) was 25.06 cm; distance between the most prominent anterior point of the superior surface of the olecranon (MAPO) and the most posterior point of the olecranon (MPPO), distance between the MPPO and maximum anterior angulation (MAA), distance between the MPPO and the maximum varus angulation (MVA) were; 1.67 cm, 5.36 cm and 7.56 cm, respectively. The average antero-posterior diameters at midolecranon plane (MOP), MAA plane (MAAP) and MVA plane (MVAP) were; 1.78 cm, 1.68 cm and 1.41 cm; transverse diameters of same planes were; 1.96 cm, 1.65 cm and 1.51 cm, respectively. The mean olecranon angle (OA), MAA and MVA were: 113.35°, 9.12°a nd 13.82°; also the mean circumferences at same planes were 6.48 cm, 6.37 cm and 5.16 cm, respectively. The mean antero-posterior medullary diameter at MAAP and mean transverse medullary diameter at MVAP were; 6.83 mm and 7.22 mm, respectively. Mean anterior and posterior cortical bone thicknesses at MAAP were: 3.61 mm and 4.25 mm; the mean medial and lateral cortical bone thicknesses at MVAP were: 4.06 mm and 4.13 mm, respectively. Dorsal angulation and medullary angulation of the proximal ulna presents different architecture. Unique morphological architecture of the proximal ulna should be taken into consideration in means of surgical operations and examination of radiographic images. It can be inferred that standardized bony landmarks may helpful during the process of designing and manufacturing precurved dorsal plates and as well as variable proximal ulnar implants. ERDEM, H. Surgical ımportance of radiographically aided morphometry of the proximal ulna. Int. J. Morphol., 38(2):299-304, 2020.

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Intramedullary compression device for proximal ulna fracture

Cited by 10 publications

References 11 publications

Comparison of Bending Strength among Plate, Steinmann Pin, and Headless Compression Screw Fixations for Proximal Ulnar Shaft Fracture in Sawbones

Comparison of Bending Strength among Plate, Steinmann Pin, and Headless Compression Screw Fixations for Proximal Ulnar Shaft Fracture in Sawbones

Determination of Functional Outcomes of Displaced Olecranon Fracture Fixed with Intermedullary Partially Threaded Screw Augmented with Tension Band Wiring

Surgical Importance of Radiographically Aided Morphometry of the Proximal Ulna

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