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Does the Surgeon-reported Outcome Correlate with Patient-reported Outcome after Total Knee Arthroplasty? A Cohort Study

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Abstract

Background

Total knee arthroplasty (TKA) has been proved to be a successful and cost-effective treatment for improving pain and function in patients with knee arthritis. Total knee arthroplasty (TKA) is one of the most common orthopaedic surgeries performed worldwide and advancement in surgical techniques and prosthetic designs have improved the patient outcomes. However, concerns and priorities of patients and surgeons relating to joint replacement may differ

Materials and Methods

306 TKAs in 223 patients were evaluated for functional outcome using surgeon reported American Knee Society Knee Score (KS)/Functional Score (FS) and patient-reported Oxford Knee Score (OKS). We have also assessed the correlation between FS and OKS at midterm follow up

Results

The mean preoperative KS, FS, and OKS in 223 patients were 42.76, 42.4, and 38.84 and the midterm mean KS, FS, and OKS were 84.29, 73.40, and 30.26, respectively. There was a statistically significant improvement in the KS, FS, and OKS at midterm follow up in Category A (CAT A) (bilateral TKA or unilateral with asymptomatic contralateral knee), CAT B (unilateral TKA with symptomatic other knee) and CAT C (inflammatory arthritis). Overall, the correlation between the midterm FS and OKS was fair. However, in CAT A and CAT B, there was no significant correlation between FS and OKS, but CAT C had a strong correlation. There was a statistically significant improvement in the KS, FS, and OKS when midterm follow up scores were compared with preoperative scores. However, no significant correlation between the American knee society FS and OKS in osteoarthritic patients at midterm follow up signifies acceptable outcome may vary between patients and physicians

Conclusion

All patients should be counseled preoperatively to assess their expectations and sensitize them to information regarding the expected functional outcome following TKA in their cultural context

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Authors and Affiliations

  1. Department of Orthopedics and Sports Medicine, Wake Forest University Baptist Medical Center, Medical Center Boulevard, Winston Salem, NC, USA

    Sivashanmugam Raju

  2. Department of Orthopaedics, Sundaram Medical Foundation Dr. Rangarajan Memorial Hospital, Shanthi Colony, Anna Nagar, Chennai, 600 040, Tamil Nadu, India

    Sivashanmugam Raju & P. V. Jayasankar

  3. Department of Orthopaedics, Shri Sathya Sai Medical College and Research Institute, Kanchipuram, Tamil Nadu, India

    Karthikeyan Chinnakkannu

  4. Department of Orthopaedics, MIOT Hospitals, Chennai, India

    Ashok Selvaraj

  5. Fellow in Paediatric Orthopaedics, Sheffield Children’s Hospital, Western Bank, UK

    Balasubramanian Balakumar

  6. Consultant Orthopaedic Surgeon, IORI Clinic, Bengaluru, Karnataka, India

    Mohan K. Puttaswamy

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  1. Sivashanmugam Raju
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  2. Karthikeyan Chinnakkannu
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  3. Ashok Selvaraj
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  4. Balasubramanian Balakumar
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  5. Mohan K. Puttaswamy
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  6. P. V. Jayasankar
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Correspondence to Sivashanmugam Raju.

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Raju, S., Chinnakkannu, K., Selvaraj, A. et al. Does the Surgeon-reported Outcome Correlate with Patient-reported Outcome after Total Knee Arthroplasty? A Cohort Study. IJOO 52, 387–392 (2018). https://doi.org/10.4103/ortho.IJOrtho_359_16

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  • DOI: https://doi.org/10.4103/ortho.IJOrtho_359_16

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