With postoperative pain often being severe, several analgesic regimes have been developed to manage it (Weston-Simons, Pandit, Dodd, Popat, and Murray, 2012). However, it is recognized that adequate analgesia facilitates early rehabilitation and hastens convalescence (Shum et al., 2009). In the present economic context characterized with rising health costs, the incentive to optimize the efficiency of care has been an issue of concern. This is considering that the optimization of pain control after total knee arthroplasty has the potential of accelerating rehabilitation and discharge time (Antoni, Jenny, and Noll, 2014). In the contemporary period, increased attention is being given to achieving health care cost savings, growing attention towards the hospitalization period, and being able to maintain a high level of patient satisfaction (Weston-Simons et al., 2012). Notably, the various approaches of analgesia directly influence the outcomes, while at the same time being associated with undesirable side effects as well as potentially serious complications. Therefore, there has been a rigorous attempt aimed at altering and augmenting anaesthetic and surgical techniques (Weston-Simons et al., 2012). Developments that have been achieved in the surgical techniques, such as the rise of the minimally invasive surgery have been found to reduce the hospitalization period without altering clinical outcomes (Weston-Simons et al., 2012). .
As Shum et al. (2009) acknowledge, various techniques can be used in providing post-operative analgesia. Through a retrospective review, the current study seeks to examine one of the techniques, the femoral nerve block (FNB), which has been gaining increasing acceptance for its better pain control and reduced side effects in comparison to other modalities. Through retrospective review, this paper seeks to establish the guideline of studying whether the use of femoral nerve block decreases the length of hospital stay.