Maximal voluntary isokinetic knee flexion torque is associated with femoral shaft bone strength indices in knee replacement patients

van Loon, 1999, Femoral bone loss in total knee arthroplasty. A review, Acta Orthop Belg, 65, 154 Anchuela, 2001, Muscular function and bone mass after knee arthroplasty, Int Orthop, 25, 253, 10.1007/s002640100234 Soininvaara, 2004, Periprosthetic tibial bone mineral density changes after total knee arthroplasty: one-year follow-up study of 69 patients, Acta Orthop Scand, 75, 600, 10.1080/00016470410001493 Soininvaara, 2004, Periprosthetic femoral bone loss after total knee arthroplasty: 1-year follow-up study of 69 patients, Knee, 11, 297, 10.1016/j.knee.2003.09.006 van Loon, 2001, Distal femoral bone mineral density after total knee arthroplasty: a comparison with general bone mineral density, Arch Orthop Trauma Surg, 121, 282, 10.1007/s004020000232 Seki, 1999, Is bone density in the distal femur affected by use of cement and by femoral component design in total knee arthroplasty?, J Orthop Sci, 4, 180, 10.1007/s007760050091 Valtonen, 2009, Muscle deficits persist after unilateral knee replacement and have implications for rehabilitation, Phys Ther, 89, 1072, 10.2522/ptj.20070295 Walsh, 1998, Physical impairments and functional limitations: a comparison of individuals 1year after total knee arthroplasty with control subjects, Phys Ther, 78, 248, 10.1093/ptj/78.3.248 Rossi, 2006, Knee extensor and flexor torque characteristics before and after unilateral total knee arthroplasty, Am J Phys Med Rehabil, 85, 737, 10.1097/01.phm.0000233178.22621.a5 Yoshida, 2008, Examining outcomes from total knee arthroplasty and the relationship between quadriceps strength and knee function over time, Clin Biomech (Bristol Avon), 23, 320, 10.1016/j.clinbiomech.2007.10.008 Lorentzen, 1999, Early changes in muscle strength after total knee arthroplasty. A 6-month follow-up of 30 knees, Acta Orthop Scand, 70, 176, 10.3109/17453679909011258 Rossi, 2004, Lower-limb force production in individuals after unilateral total knee arthroplasty, Arch Phys Med Rehabil, 85, 1279, 10.1016/j.apmr.2003.11.034 Gapeyeva, 2007, Quadriceps femoris muscle voluntary isometric force production and relaxation characteristics before and 6months after unilateral total knee arthroplasty in women, Knee Surg Sports Traumatol Arthrosc, 15, 202, 10.1007/s00167-006-0166-y Järvinen, 1997, Injury of an extremity as a risk factor for the development of osteoporosis, J Bone Joint Surg Am, 79, 263, 10.2106/00004623-199702000-00017 Suetta, 2007, Muscle size, neuromuscular activation, and rapid force characteristics in elderly men and women: effects of unilateral long-term disuse due to hip-osteoarthritis, J Appl Physiol, 102, 942, 10.1152/japplphysiol.00067.2006 Suetta, 2008, Resistance training induces qualitative changes in muscle morphology, muscle architecture, and muscle function in elderly postoperative patients, J Appl Physiol, 105, 180, 10.1152/japplphysiol.01354.2007 Perhonen, 1992, Strength training and neuromuscular function in elderly people with total knee endoprosthesis, Scand J Med Sci Sports, 2, 234, 10.1111/j.1600-0838.1992.tb00349.x Petterson, 2009, Improved function from progressive strengthening interventions after total knee arthroplasty: a randomized clinical trial with an imbedded prospective cohort, Arthritis Rheum, 61, 174, 10.1002/art.24167 Valtonen, 2010, Effects of aquatic resistance training on mobility limitation and lower-limb impairments after knee replacement, Arch Phys Med Rehabil, 91, 833, 10.1016/j.apmr.2010.03.002 Bellamy, 1988, Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee, J Rheumatol, 15, 1833 Rantalainen, 2010, Neuromuscular performance and body mass as indices of bone loading in premenopausal and postmenopausal women, Bone, 46, 964, 10.1016/j.bone.2010.01.002 Soininvaara, 2004, Bone mineral density in the proximal femur and contralateral knee after total knee arthroplasty, J Clin Densitom, 7, 424, 10.1385/JCD:7:4:424 Harato, 2010, Extension limitation in standing affects weight-bearing asymmetry after unilateral total knee arthroplasty, J Arthroplasty, 25, 225, 10.1016/j.arth.2009.02.003 Portegijs, 2005, Leg extension power asymmetry and mobility limitation in healthy older women, Arch Phys Med Rehabil, 86, 1838, 10.1016/j.apmr.2005.03.012 Foley, 2003, Does hydrotherapy improve strength and physical function in patients with osteoarthritis—a randomised controlled trial comparing a gym based and a hydrotherapy based strengthening programme, Ann Rheum Dis, 62, 1162, 10.1136/ard.2002.005272 Portegijs, 2008, Effects of resistance training on lower-extremity impairments in older people with hip fracture, Arch Phys Med Rehabil, 89, 1667, 10.1016/j.apmr.2008.01.026 Suetta, 2004, Resistance training in the early postoperative phase reduces hospitalization and leads to muscle hypertrophy in elderly hip surgery patients—a controlled, randomized study, J Am Geriatr Soc, 52, 2016, 10.1111/j.1532-5415.2004.52557.x Rantalainen, 2008, Neuromuscular performance and bone structural characteristics in young healthy men and women, Eur J Appl Physiol, 102, 215, 10.1007/s00421-007-0575-8 Keaveny, 2010, Age-dependence of femoral strength in white women and men, J Bone Miner Res, 25, 994, 10.1002/jbmr.231