Long-term follow-up of the Moberg key grip procedure |
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| Authors: | T V Rieser R L Waters |
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| Affiliation: | 1. Zentrum für Kardiologie, Kardiologie 1, Johannes Gutenberg-University Mainz, Mainz, Germany;2. Foundation Stiftung Institut für Herzinfarktforschung, Ludwigshafen, Germany;3. 3rd Department of Medicine, University Hospital Heidelberg, Heidelberg, Germany;4. Department of Cardiology, Angiology and Intensive Care Medicine, Vivantes-Klinikum Neukölln, Berlin, Germany;5. 2nd Department of Medicine, University Hospital of Regensburg, Regensburg, Germany;6. Clinic for Cardiology and Angiology, Municipal Hospital Karlsruhe, Karlsruhe, Germany;7. Institute for Pathophysiology, West German Heart and Vascular Center, University School of Medicine, Essen, Germany;8. CCB, Cardioangiologisches Centrum Bethanien, Frankfurt am Main, Germany;9. Department of Cardiology, Pneumology and Internal Intensive Care Medicine, Klinikum Neuperlach, Städtisches Klinikum München GmbH, Munich, Germany;10. Deutsches Zentrum für Herz- Und Kreislaufforschung, Standort Rhein, Mainz, Germany;1. Surgeon, Orthopedic Center of Children''s Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China;2. Professor, Orthopedic Center of Children''s Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China |
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| Abstract: | The long-term results of the key grip procedure (tenodesis of the flexor pollicis longus tendon to the radius, release of the A1 pulley, and percutaneous pin fixation of the interphalangeal joint of the thumb) were evaluated in 10 tetraplegic patients. Seven patients also had tenodesis of the extensor pollicis longus and brevis tendons to prevent flexion at the metacarpophalangeal (MP) joint. Patients were examined an average of 7.4 years after surgery. Progressive flexion of the MP joint gradually occurred, indicating failure of the extensor tenodesis. Excessive bowstringing of the flexor pollicis longus tendon across the MP joint occurred in nine patients. Because of failure of the extensor tenodesis and bowstringing of the flexor tendon, the patients had to progressively extend the wrist further to pinch small objects. Functional testing demonstrated improved hand use in eight patients. Lateral pinch strength was related to wrist extension torque. |
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