Modified Oblique Keller Capsular Interposition Arthroplasty for Hallux Rigidus

Area of Science:

• Orthopedic Surgery
• Foot and Ankle Surgery
• Joint Reconstruction

Background:

• Hallux rigidus is a degenerative condition affecting the first metatarsophalangeal (MTP) joint.
• Late-stage hallux rigidus often leads to significant pain and loss of motion.
• Traditional treatments include arthrodesis (fusion), which sacrifices joint mobility.

Purpose of the Study:

• To describe the modified oblique Keller capsular interposition arthroplasty (MOKCIA) technique.
• To present MOKCIA as a potential alternative for patients seeking to preserve MTP joint motion.
• To compare MOKCIA with first MTP joint arthrodesis.

Main Methods:

• A dorsal medial longitudinal incision is made over the MTP joint.
• The extensor hallucis longus tendon is mobilized.
• A capsular flap is created, and a dorsal cheilectomy is performed.
• The capsule is interposed and sutured to the plantar plate.
• Postoperative care includes range-of-motion exercises and physical therapy.

Main Results:

• The study compared outcomes of MOKCIA with first MTP joint arthrodesis.
• The abstract does not contain specific quantitative results comparing the two groups.

Conclusions:

• The modified oblique Keller capsular interposition arthroplasty is a surgical technique for hallux rigidus.
• This procedure may be indicated for patients who prioritize retaining joint motion.
• Further comparative studies are needed to fully elucidate the outcomes of MOKCIA versus arthrodesis.