Related Experiment Video
Updated: Jan 26, 2026

10:44
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
11.6K
[Radical organ-saving operations in scapular tumors].
Voprosy Onkologii
|January 1, 1984
Summary
Radical surgeries for scapular neoplasms, including Tikhov-Linberg resection and scapulectomy, improved patient function. Most patients with primary scapular malignancies experienced no recurrence or metastasis after surgery.
Area of Science:
- Orthopedic Surgery
- Surgical Oncology
Background:
- Scapular neoplasms are rare tumors requiring specialized surgical approaches.
- Radical resection is often necessary for oncological control.
- Function-preserving surgeries aim to minimize morbidity while achieving radical tumor removal.
Observation:
- This study analyzed 37 patients with scapular neoplasms undergoing either interscapular-thoracic resection (Tikhov-Linberg operation) or scapulectomy.
- Author-developed modifications to these procedures were implemented.
- Functional outcomes were compared to other surgical techniques.
Findings:
- Patients undergoing the modified Tikhov-Linberg operation or scapulectomy demonstrated improved functional status.
- Of 30 cases with primary scapular malignancies, 23 remained recurrence- and metastasis-free.
- Long-term follow-up (10 months to 18 years) showed sustained oncological control in the majority of patients.
Implications:
- Modified Tikhov-Linberg resection and scapulectomy represent effective function-saving surgical options for scapular neoplasms.
- These techniques offer favorable oncological outcomes with reduced functional impairment.
- Further research into surgical modifications for rare bone tumors is warranted.
Related Concept Videos
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals
3.4K
Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...
3.4K
Radical Reactivity: Nucleophilic Radicals
2.6K
Radicals adjacent to electron-donating groups are called nucleophilic radicals. These radicals readily react with electrophilic alkenes. The SOMO–LUMO interactions are the driving force for the reaction, where the high-energy SOMO of the electron-rich, nucleophilic radicals interacts with the low-energy LUMO of the electron-deficient, electrophilic alkenes. Such SOMO–LUMO interactions are the basis of reactive radical traps, affecting the selectivity in radical reactions. For...
2.6K
Radical Reactivity: Electrophilic Radicals
2.4K
Radicals adjacent to electron‐withdrawing groups are called electrophilic radicals. These radicals readily react with nucleophilic alkenes. For example, the malonate radical, in which the radical center is flanked by two electron‐withdrawing groups, reacts readily with butyl vinyl ether, which consists of an electron‐donating oxygen substituent. The reaction between electrophilic malonate radical and nucleophilic vinyl ether is favored because the radical has a...
2.4K
Radical Autoxidation
3.1K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
3.1K
Operational Amplifiers
1.9K
The operational amplifier, often referred to as an op-amp, is a multifaceted building block of a circuit. This electronic component functions like a voltage-controlled voltage source and can also be used to create a voltage- or current-controlled current source. The design of an operational amplifier enables it to execute mathematical operations when external components like resistors and capacitors are linked to its terminals. An op-amp has the capacity to sum signals, amplify a signal,...
1.9K
Radical Formation: Overview
2.6K
A bond can be broken either by heterolytic bond cleavage to form ions or homolytic bond cleavage to yield radicals. A fishhook arrow is used to represent the motion of a single electron in homolytic bond cleavage. There are two main sources from which radicals can be formed:
Radicals from spin-paired molecules:
Radicals can be obtained from spin-paired molecules either by homolysis or electron transfer. While two radicals are formed in the former, an electron is added in the...
Radicals from spin-paired molecules:
Radicals can be obtained from spin-paired molecules either by homolysis or electron transfer. While two radicals are formed in the former, an electron is added in the...
2.6K

