Abstract
De Quervain’s tenosynovitis is often observed on repetitive flexion of the thumb. In the clinical setting, the conservative treatment is usually an applied thumbspica splint to immobilize the thumb. However, the traditional thumbspica splint is bulky and heavy. Thus, this study used the finite element (FE) method to remove redundant material in order to reduce the splint’s weight and increase ventilation. An FE model of a thumbspica splint was constructed using ANSYS9.0 software. A maximum lateral thumb pinch force of 98 N was used as the input loading condition for the FE model. This study implemented topology optimization and design optimization to seek the optimal thickness and shape of the splint. This new design was manufactured and compared with the traditional thumbspica splint. Ten thumbspica splints were tested in a materials testing system, and statistically analyzed using an independent t test. The optimal thickness of the thumbspica splint was 3.2 mm. The new design is not significantly different from the traditional splint in the immobilization effect. However, the volume of this new design has been reduced by about 35%. This study produced a new thumbspica splint shape with less volume, but had a similar immobilization effect compared to the traditional shape. In a clinical setting, this result can be used by the occupational therapist as a reference for manufacturing lighter thumbspica splints for patients with de Quervain’s tenosynovitis.
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References
Alegado RB, Meals RA (1979) An unusual complication following surgical treatment of de Quervain`s disease. J Hand Surg 4:185–189
ANSYS Inc (2004) Topological optimization, ansys theory reference release 9.0. ANSYS Inc
Chen WP, Ju CW, Tang FT (2003) Effects of total contact insoles on the plantar stress redistribution: a finite element analysis. Clin Biomech 18(6):S17–S24
Chu TM, Reddy NP, Padovan J (1995) Three-dimensional finite element stress analysis of the polypropylene, ankle-foot orthosis: static analysis. Med Eng Phys 17(5):372–379
Colditz JC (2000) The biomechanics of a thumb carpometacarpal immobilization splint: design and fitting. J Hand Ther 13(3):228–235
Conklin JE, White WL (1960) Stenosing tenosynovitis and interpretation its possible relation to the carpal tunnel syndrome. Surg Clin North Am 40:531–540
Cotton FJ, Movrison G.M, Bradford CH (1938) DeQuervain’s disease: radial styloid tendovaginitis. N Engl J Med 219:120–123
De Mateo JA, Enrique E, az Palacios MA, Castello JV, Malek T (2003) Contact dermatitis due to a de Quervain splint. Allergy 58(8):828–829
Diack AW, Trommald JP (1939) DeQuervain’s disease: a frequently missed diagnosis. West J Surg 47:629–633
Dobyns J, Obrien ET, Lincheid RL, Farrow GM (1972) Bowler’s thumb: diagnosis and treatment. J Bone Joint Surg 54A(4):751–755
Gignac D, Aubin CE, Dansereau J, Labelle H (2000) Optimization method for 3D bracing correction of scoliosis using a finite element model. Eur Spine J 9(3):185–190
Hunter JM, Mackin EJ, Callahan AD (2002) Rehabilitation of the hands: surgery and therapy, 5th ed. Mosby, St Louis
Kagel EM, Rayan GM (2000) Thumb digital neuropathy caused by splinting. J Okla State Med Assoc 93(9):435–436
Kutsumi K, Amadio PC, Zhao C, Zobitz ME, Tanaka T, An KN (2005) Finkelstein’s test: a biomechanical analysis. J Hand Surg 30A(1):130–135
Lane LB, Boretz RS, Stuchin SA (2001) Treatment of de Quervain’s disease: role of conservative management. J Hand Surg Br 26(3):258–260
Mathiowetz V, Kashman N, Volland G, Weber K, Dowe M, Rogers S (1985) Grip and pinch strength: normative data for adults. Arch Phys Med Rehabil 66(2):69–74
Mazon C, Ulson HJ, Davitt M, Laurito F, Jacob LG, von Glehn V (1996) The use of synthetic plaster casting tape for hand and wrist splints. J Hand Ther 9(4):391–393
Moore JS (1997) De Quervain’s tenosynovitis: stenosing tenosynovitis of the first dorsal compartment (review, 53 refs). J Occup Environ Med 39(10):990–1002
Neumann DA, Bielefeld T (2003) The carpometacarpal joint of the thumb: stability, deformity and therapeutic intervention. J Orthop Sport Phys Ther 33(7):386–399
Perie D, Aubin CE, Petit Y, Labelle H, Dansereau J (1919) Personalized biomechanical simulations of orthotic treatment in idiopathic scoliosis. Clin Biomech 2:190–195
Perie D, Aubin CE, Petit Y, Beausejour M, Dansereau J, Labelle H (2003) Boston brace correction in idiopathic scoliosis: a biomechanical study. Spine 28(15):1672–1677
Perie D, Sales De GJ, Hobatho MC (2002) Biomechanical evaluation of Cheneau-Toulouse-Munster brace in the treatment of scoliosis using optimisation approach and finite element method. Med Biol Eng Comput 40(3):296–301
Witt J, Pess G, Gelberman RH (1991) Treatment of de Quervain tenosynovitis: a prospective study of the results of injection of steroids and immobilization in a splint. J Bone Joint Surg Am 73(2):219–222
Wood CF (1941) Stenosing tendovaginitis at the radial styloid process. South Surg 10:105–110
Zhong ZC, Wei SH, Wang JP, Feng CH, Chen CS, Yu CH (2006) Finite element analysis of the lumbar spine with a new cage using a topology optimization method. Med Eng Phys 28(1):90–98
Ziegler EM (1984) Current concepts in orthotics: a diagnosis-related approach. Roylan Medical Products, Germantown
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This work was supported by the Grant-VGHUST94-P7-46 from Veterans General Hospitals University System of Taiwan Joint Research Program, Tsou’s Foundation.
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Huang, TH., Feng, CK., Gung, YW. et al. Optimization design of thumbspica splint using finite element method. Med Bio Eng Comput 44, 1105–1111 (2006). https://doi.org/10.1007/s11517-006-0131-4
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DOI: https://doi.org/10.1007/s11517-006-0131-4