Strength and Functional Deficits Following Total Hip Replacement in Individuals with Avascular Necrosis of Femoral Head Mehta Ananya1, Mukkamala Neha2,*, Patel Niketa2, Parmar Lata Shroff3, Golwala Paresh4 1PG student, Department of Orthopaedics, Smt. B.K. Shah Medical Institute and Research Centre, Sumandeep Vidyapeeth, Vadodara, Gujarat 2Assistant Professor, Department of Orthopaedics, Smt. B.K. Shah Medical Institute and Research Centre, Sumandeep Vidyapeeth, Vadodara, Gujarat 3Professor and Principal, Department of Orthopaedics, Smt. B.K. Shah Medical Institute and Research Centre, Sumandeep Vidyapeeth, Vadodara, Gujarat 4Professor & Head, Department of Orthopaedics, Smt. B.K. Shah Medical Institute and Research Centre, Sumandeep Vidyapeeth, Vadodara, Gujarat *Corresponding author Neha Mukkamala, Assistant professor, College of physiotherapy, Sumandeep Vidyapeeth, Mobile: +91-9898216184, Email: neha.cop@sumandeepvidyapeethdu.edu.in
Online published on 21 November, 2019. Abstract Background AVN commonly affects femoral head causing pain, joint stiffness, muscle wasting and physical disability. THR, commonly done for AVN improves mobility, strength and physical functions by reducing pain and improving functions. Methodology Total 32 subjects, 16 age & gender matched healthy adults and 16 with AVN of femoral head were included. Muscle strength of hip muscles by modified sphygmomanometer, self reported Harris hip score and TUG test were taken preoperatively in subjects with AVN scheduled for a THR. All subjects underwent physiotherapy during hospital stay. Again all outcome measures were taken post hip replacement on the day of discharge. In healthy adults, only hip muscle strength was measured. Results 32 subjects, 28-males and 8-females. Mean age-36.88 years in both groups. Isometric muscle strength preoperatively in AVN subjects of hip flexors-76.75±50.67 mm of Hg, abductors-54.56±30.74 and extensor apparatus 75.38±37.32 was significantly reduced (p<0.001) compared to healthy adults, (hip flexors-188.42±15.69, abductors 112.67±21.66 and extensor apparatus-171.71±25.60). Postoperatively strength of hip flexors-93.12±52.58, abductors-63.62±33.74 and extensor apparatus-88.94±41.22 was reduced compared to healthy adults. Postop significant improvement (p<0.05) seen at discharge in strength compared to preop values. Conclusion Muscle strength of hip muscles in subjects with AVN preoperatively and post replacement was significantly reduced compared to normals. Postoperatively improvement was seen at discharge in strength compared to preoperative values. Top Keywords Avascular necrosis, muscle strength, total hip replacement. Top |