Effects of Mini-Incision TKA

• Published in: Orthopedics & Traumatology Vol. 56; no. 4; pp. 657 - 660
• Main Authors: Kawamura, Hideya, Motomura, Goro, Yamaguchi, Tomotaro, Sakamoto, Hisashi
• Format: Journal Article
• Language: Japanese
• Published: West-Japanese Society of Orthopedics & Traumatology 2007
• Subjects: DVT; mini-incision; MIS
• ISSN: 0037-1033; 1349-4333
• DOI: 10.5035/nishiseisai.56.657

Minimal invasive surgery of knee arthroplasty is useful, but some problems are surfacing over the past years. We performed TKA surgery to minimize incision using conventional guides in 2004 (Mini-Incision TKA). We started MIS (Minimally Invasive Surgery) TKA with mini-mid vastus approach in April 2005. In the current study, the effects of the two methods were compared. The subjects were cases of primary TKA performed in Kyushu Kosei Nenkin Hospital for the treatment of osteoarthritis and osteonecrosis of the knee joint, except rheumatoid arthritis, from April to December in 2005. Forty-five cases were selected for investigation. We compared the mini-incision TKA and MIS TKA for operation time, length of incision, the day when patients can raise their legs (straight leg raising) after surgery and hospitalization days after surgery. The average length of incision in MIS TKA was shorter than that in mini-incision TKA, while the average operation time of MIS TKA was longer than that of mini-incision TKA. Statistical analysis showed no difference in the number of days when the patients can raise their legs after surgery and the hospitalization days of these two methods.