Alastair performs arthroscopic surgery of the knee.

An arthroscope is a fiber optic telescope used to look inside a joint. Through this type of keyhole surgery, fine instruments can be introduced through small incisions (portals) to allow surgery to be performed without the need for large cuts. This allows many procedures to be performed as a day stay and allows quicker return to normal function of the joint.

• Arthroscopic meniscectomy of the knee: This is removal of a torn meniscus, a common sporting injury and the most common arthroscopic surgery. Most patients can do their normal activities after two weeks, but sports require up to eight weeks recovery.

• Anterior cruciate ligament (ACL) reconstruction: The ACL is the big ligament in the knee which often gets torn in sports accidents. This can be reconstructed. Recovery back to sport is 6 to 7 months in general, to allow the new ligament to strengthen properly.

• Removal of loose bodies or damaged articular cartilage: This can be done arthroscopically in most instances and in most joints.