Scaphoid Nonunions Treated with 1, 2-Intercompartment Supraretinacular Artery Pedicled Vascularized Bone Graft and Headless Compression Screw Fixation

2014 ◽  
Vol 19 (4) ◽  
pp. 173
Author(s):  
Dong-Hyun Kim ◽  
Yang-Guk Chung ◽  
Seung-Han Shin ◽  
Ho-Jin Gil ◽  
Jin-Woo Kang ◽  
...  
Keyword(s):  
Bone Graft ◽  
Screw Fixation ◽  
Vascularized Bone Graft ◽  
Compression Screw ◽  
Headless Compression Screw ◽  
Vascularized Bone

Non-vascularized bone graft with Herbert-type screw fixation for proximal pole scaphoid nonunion

2011 ◽  
Vol 16 (6) ◽  
pp. 749-755 ◽  
Author(s):  
Hiroyuki Matsuki ◽  
Shigeharu Uchiyama ◽  
Hiroyuki Kato ◽  
Junichi Ishikawa ◽  
Norimasa Iwasaki ◽  
...  
Keyword(s):  
Bone Graft ◽  
Screw Fixation ◽  
Vascularized Bone Graft ◽  
Scaphoid Nonunion ◽  
Proximal Pole ◽  
Vascularized Bone

Gastrocnemius-Fibular Flap. A New Pedicled Vascularized Bone Graft Alternative for Femur Pseudarthrosis. Review of 7 Consecutive Clinical Cases

2014 ◽  
Vol 30 (S 01) ◽  
Author(s):  
Luciano Torres ◽  
Fernanda Bogdanovics ◽  
Paganotti Guilherme ◽  
Pelosini Gaiarsa ◽  
José Queiroz ◽  
...  
Keyword(s):  
Bone Graft ◽  
Vascularized Bone Graft ◽  
Fibular Flap ◽  
Vascularized Bone ◽  
Clinical Cases

Trans-metacarpal Screw Fixation for Extra-articular Proximal Phalangeal Base Fractures

2017 ◽  
Vol 22 (01) ◽  
pp. 35-38 ◽  
Author(s):  
Eichi Itadera ◽  
Takahiro Yamazaki
Keyword(s):  
Screw Fixation ◽  
Proximal Phalanx ◽  
Metacarpophalangeal Joint ◽  
Fixation Method ◽  
Compression Screw ◽  
Metacarpal Head ◽  
Headless Compression Screw ◽  
Articular Fractures ◽  
Intramedullary Canal ◽  
Cannulated Drill

We developed a new internal fixation method for extra-articular fractures at the base of the proximal phalanx using a headless compression screw to achieve rigid fracture fixation through a relatively easy technique. With the metacarpophalangeal joint of the involved finger flexed, a smooth guide-pin is inserted into the intramedullary canal of the proximal phalanx through the metacarpal head and metacarpophalangeal joint. Insertion tunnels are made over the guide-pin using a cannulated drill. Then, a headless cannulated screw is placed into the proximal phalanx. All of five fractures treated by this procedure obtained satisfactory results.

Single Versus Dual Headless Compression Screw Fixation of Scaphoid Nonunions: A Biomechanical Comparison

Hand ◽  
2021 ◽  
pp. 155894472097411
Author(s):  
Luke T. Nicholson ◽  
Kristen M. Sochol ◽  
Ali Azad ◽  
Ram Kiran Alluri ◽  
J. Ryan Hill ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Qualitative Assessment ◽  
Secondary Outcome ◽  
Scaphoid Nonunion ◽  
Compression Screw ◽  
Single Screw ◽  
Headless Compression Screw ◽  
Significant Difference ◽  
Load To Failure ◽  
Headless Compression Screws

Background: Management of scaphoid nonunions with bone loss varies substantially. Commonly, internal fixation consists of a single headless compression screw. Recently, some authors have reported on the theoretical benefits of dual-screw fixation. We hypothesized that using 2 headless compression screws would impart improved stiffness over a single-screw construct. Methods: Using a cadaveric model, we compared biomechanical characteristics of a single tapered 3.5- to 3.6-mm headless compression screw with 2 tapered 2.5- to 2.8-mm headless compression screws in a scaphoid waist nonunion model. The primary outcome measurement was construct stiffness. Secondary outcome measurements included load at 1 and 2 mm of displacement, load to failure for each specimen, and qualitative assessment of mode of failure. Results: Stiffness during load to failure was not significantly different between single- and double-screw configurations ( P = .8). Load to failure demonstrated no statistically significant difference between single- and double-screw configurations. Using a qualitative assessment, the double-screw construct maintained rotational stability more than the single-screw construct ( P = .029). Conclusions: Single- and double-screw fixation constructs in a cadaveric scaphoid nonunion model demonstrate similar construct stiffness, load to failure, and load to 1- and 2-mm displacement. Modes of failure may differ between constructs and represent an area for further study. The theoretical benefit of dual-screw fixation should be weighed against the morphologic limitations to placing 2 screws in a scaphoid nonunion.

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