Marion Mühldorfer-Fodor1, Angela Reger2, Jörg van Schoonhoven2, Thomas Mittlmeier3, Karl Josef Prommersberger2. 1. Clinic for Hand Surgery, Rhön Klinikum AG, Bad Neustadt/Saale, Germany. Electronic address: muehldorfer3@gmx.de. 2. Clinic for Hand Surgery, Rhön Klinikum AG, Bad Neustadt/Saale, Germany. 3. Department of Trauma and Reconstructive Surgery, University of Rostock, Rostock, Germany.
Abstract
PURPOSE: To analyze the total grip force and load distribution of the hand with midcarpal fusion (MCF) and total wrist fusion (TWF). METHODS: Twelve patients with unilateral TWF and 12 patients with unilateral MCF were assessed at an average 64 months (range, 19-100 months) postoperatively. The total grip force and load distribution of both hands were measured by the Manugraphy system using 3 cylinder sizes. The load applied to 7 anatomical areas of the hand during cylinder grip was analyzed, comparing the operated and the nonsurgical hands. RESULTS: For the 100 mm and 150 mm cylinders, a significantly lower total grip force was found in hands operated with either TWF or MCF. For the 200 mm cylinder, there was a significant difference between nonsurgical hands and those with MCF but not between nonsurgical hands and those with TWF. For the 100 mm cylinder, the difference between nonsurgical and operated hands was greater in hands with TWF than those with MCF. For the load distribution of the hand, no differences between the operated and the nonsurgical hand were found for either MCF or TWF. CONCLUSIONS: MFC and TWF resulted in a reduced cylinder grip force. With respect to the load distribution, neither procedure influenced the relative contribution that each area of the hand produced during cylinder grip. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic III.
PURPOSE: To analyze the total grip force and load distribution of the hand with midcarpal fusion (MCF) and total wrist fusion (TWF). METHODS: Twelve patients with unilateral TWF and 12 patients with unilateral MCF were assessed at an average 64 months (range, 19-100 months) postoperatively. The total grip force and load distribution of both hands were measured by the Manugraphy system using 3 cylinder sizes. The load applied to 7 anatomical areas of the hand during cylinder grip was analyzed, comparing the operated and the nonsurgical hands. RESULTS: For the 100 mm and 150 mm cylinders, a significantly lower total grip force was found in hands operated with either TWF or MCF. For the 200 mm cylinder, there was a significant difference between nonsurgical hands and those with MCF but not between nonsurgical hands and those with TWF. For the 100 mm cylinder, the difference between nonsurgical and operated hands was greater in hands with TWF than those with MCF. For the load distribution of the hand, no differences between the operated and the nonsurgical hand were found for either MCF or TWF. CONCLUSIONS: MFC and TWF resulted in a reduced cylinder grip force. With respect to the load distribution, neither procedure influenced the relative contribution that each area of the hand produced during cylinder grip. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic III.
Authors: Alice Wichelhaus; Christoph Harms; Julia Neumann; Steffen Ziegler; Günther Kundt; Karl Josef Prommersberger; Thomas Mittlmeier; Marion Mühldorfer-Fodor Journal: BMC Musculoskelet Disord Date: 2018-02-14 Impact factor: 2.362