Scaphoid Non-union Arthroscopic Treatment without Bone Graft: Is it Possible?

Area of Science:

• Orthopedic Surgery
• Hand Surgery
• Musculoskeletal Research

Background:

• Scaphoid fractures are the most common carpal bone fractures, necessitating early diagnosis and treatment.
• Scaphoid non-union management is challenging due to heterogeneity, leading to controversial treatments and high failure rates.
• Previous research on osteogenic factors and distal radius decompression, combined with minimally invasive techniques, informed the current study.

Purpose of the Study:

• To introduce a novel classification system for scaphoid non-unions based on CT and arthroscopic findings.
• To present an improved, arthroscopic-assisted treatment approach for scaphoid non-unions without bone grafting.
• To evaluate the efficacy of arthroscopic-assisted reduction and internal fixation with metaphyseal core decompression.

Main Methods:

• Development of a new scaphoid non-union classification system.
• Application of arthroscopic-assisted reduction and internal fixation.
• Inclusion of metaphyseal core decompression of the distal radius in specific cases.

Main Results:

• The study proposes a comprehensive classification for scaphoid non-unions.
• Arthroscopic-assisted treatment with core decompression shows promise for scaphoid non-unions, including advanced cases.
• Percutaneous fixation is suitable for stable stages I and II; core decompression is beneficial for unstable stages and bone defects.

Conclusions:

• Arthroscopic-assisted treatment is recommended for young, non-smoking patients with scaphoid non-unions.
• The new classification aids in categorizing scaphoid non-unions for tailored treatment.
• Contraindications include significant sclerosis, absent punctate bleeding, and very small proximal fragments.