Related Experiment Video
Updated: Feb 14, 2026

09:13
Polytetrafluoroethylene PTFE as a Suture Material in Tendon Surgery
Published on: October 6, 2022
4.1K
Suture and Splint Compared With K-Wire Fixation for Open Zone 1 Extensor Tendon Injuries.
Marcus Simonian1, Michael Dan, David Graan
1From the Orthopaedic Department, John Hunter Hospital, Newcastle, New South Wales, Australia.
Annals of Plastic Surgery
|February 27, 2018
Summary
For open Zone 1 extensor tendon injuries, adding Kirschner-wire fixation to suture repair and splinting did not improve range of motion. This technique, however, increased the incidence of extensor lag.
Area of Science:
- Orthopedic surgery
- Hand surgery
- Traumatology
Background:
- Extensor tendon injuries are classified by injury zone.
- Zone 1 injuries affect the lateral bands, impairing distal interphalangeal joint extension.
- Open Zone 1 injuries have multiple treatment options, but direct comparisons are lacking.
Purpose of the Study:
- To compare the efficacy of additional Kirschner-wire fixation versus standard suture repair and splinting for open Zone 1 extensor tendon injuries.
- To evaluate the impact of Kirschner-wire fixation on range of motion and extensor lag.
Main Methods:
- Retrospective cohort analysis of 50 patients with open Zone 1 extensor tendon injuries.
- Comparison of two surgical groups: 'Suture and Splint' versus 'Suture, Splint, and Kirschner wire'.
- Outcomes measured included final range of motion and extensor lag.
Main Results:
- No significant difference in final range of motion between the two groups.
- Mean splinting duration was similar for both treatment groups.
- A higher incidence of extensor lag was observed in the group treated with Kirschner-wire fixation.
Conclusions:
- Additional Kirschner-wire fixation does not enhance range of motion for open Zone 1 extensor tendon injuries.
- Kirschner-wire fixation may increase the risk of extensor lag in these injuries.
- Standard suture repair and splinting may be sufficient for managing open Zone 1 extensor tendon injuries.
Related Concept Videos
Hybrid Zones
22.0K
Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
22.0K
Zones of Protection
818
In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
818
Transition Zone
396
The transition zone in concrete is a critical area where aggregate meets cement paste, marked by a distinct porosity and weakness compared to the surrounding material. The adhesion around the aggregates is primarily due to Van Der Waals forces. The voids within this zone influence its robustness; initially, it is less durable than the surrounding bulk mortar due to larger voids. Initially, when concrete is compacted, a higher water-cement ratio near the aggregates leads to the formation of...
396
Sutures of the Skull
13.2K
The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
13.2K
Fixation and Sectioning
8.0K
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
8.0K
Magnetic Field Due to Two Straight Wires
4.8K
Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
4.8K

