Dr. Ahsan Shamim With over 25 years experience (including 12 years at Shaukat Khanum Memorial Cancer Hospital), Dr. Ahsan Shamim is an eminent athroplasty surgeon regularly performing more than 300 primary and revision joint replacements annually with excellent results. His other fields of special expertise are arthroscopic surgery including arthroscopic ligament reconstructions of the knee, musculoskeletal tumour surgery and advanced Ilizarov limb reconstruction in addition to general orthopaedics.