An Evaluation of Phantom Pain among Traumatic Lower Limb Amputees in Lahore
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Abstract
Background: Amputation is the surgical removal of all or part of an irreparably damaged limb due to injury or disease. Trauma is the leading cause of lower limb amputation in Pakistan. Phantom limb pain (PLP) is a common and distressing complication following amputation, affecting the quality of life and functional outcomes.
Objective: The primary objective of this study was to assess the occurrence and intensity of phantom limb pain in patients who had undergone lower limb amputation due to traumatic causes in Pakistan.
Methods: A descriptive cross-sectional study was conducted over six months, involving 73 patients who had undergone lower limb amputation due to trauma. The study was carried out in Ghurki Trust Teaching Hospital, Sheikh Zayed Hospital, and Mayo Hospital. Patients aged 20-45 years, with amputations performed within one year, were included. Exclusion criteria were non-traumatic amputations and amputations older than one year. Non-probability convenience sampling was used. Participants were divided into three groups based on the level of amputation: hip disarticulation (n=12), transfemoral (n=28), and transtibial (n=33). Phantom limb pain was assessed using the Numeric Pain Rating Scale (NRPS), an 11-item scale ranging from 0 (no pain) to 10 (severe pain). Data were analyzed using SPSS version 25, and descriptive statistics were presented in tables and graphs. Ethical approval was obtained from the Ethics Committee of Lahore College of Physical Therapy (ERC-LCPT/298/2019). Written informed consent was obtained from all participants.
Results: The study found that 83.6% of the participants experienced phantom limb pain. Among the hip disarticulation group, 91.7% reported PLP, with a mean NRPS score of 7.3. In the transfemoral group, 89.3% experienced PLP, with a mean NRPS score of 6.8. In the transtibial group, 75.8% reported PLP, with a mean NRPS score of 5.4. The association between the level of amputation and the presence of PLP was significant, with p-values of 0.003 for hip disarticulation, 0.000 for transfemoral, and 0.001 for transtibial amputations.
Conclusion: Phantom limb pain is a prevalent and significant issue among patients with traumatic lower limb amputations in Pakistan, with varying intensity across different levels of amputation. These findings underscore the need for targeted pain management strategies and comprehensive rehabilitation programs to address PLP and improve the quality of life for amputees.
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