J Korean Foot Ankle Soc.  2013 Jun;17(2):121-129.

Radiographic Characteristics and the Clinical Results of the Operative Treatment of the Tarsometatarsal Osteoarthritis with Hallux Valgus Deformity

Affiliations
  • 1Department of Orthopedic Surgery, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea. cool-cool0829@hanmail.net

Abstract

PURPOSE
To evaluate the radiographic characteristics of the tarsometatarsal osteoarthritis with hallux valgus deformity and report the clinical results of the operative treatment.
MATERIALS AND METHODS
This is a retrospective study of 20 patients, 22 feet who had been operated for non-traumatic tarsometatarsal osteoarthritis with hallux valgus (TMT group) and control group of hallux valgus patients without tarsometatarsal osteoarthritis (26 patients, 28 feet) from April 2004 to July 2011. Radiographic characteristics were compared between the groups, using hallux valgus angle, 1st-2nd intermetatarsal angle, metatarsal length ratio, metatarsus adductus angle, talonavicular coverage angle, talus-1st metatarsal angle, calcaneal pitch angle and medial cuneiform height. Pre- and postoperative difference of 1st-2nd metatarsal declination angle and distance between the 1st-2nd metatarsal head were evaluated. The clinical results were evaluated by American Orthopaedics Foot and Ankle Society (AOFAS) midfoot scale and visual analogue scale (VAS).
RESULTS
Metatarsal length ratio was significantly larger in TMT group (p<0.001). Metatarsus adductus angle, talonavicular coverage angle, talus-1st metatarsal angle on lateral radiograph, calcaneal pitch angle and medial cuneiform height were different from control group (p<0.001, p<0.001, p=0.001, p=0.010, p=0.006). Postoperative declination of the 2nd metatarsal and distance between the 1st-2nd metatarsal head were increased (p=0.009, p=0.001). The AOFAS and VAS score were improved (p<0.001, p<0.001).
CONCLUSION
Non-traumatic osteoarthritis of the tarsometatarsal joints seems to be associated with long 2nd metatarsal length, metatarsus adductus and flatfoot deformity. Spur excision may be successful to relieve symptoms when the arthritis was diagnosed in early stage.

Keyword

Osteoarthritis; Tarsometatarsal joint; Spur excision; Arthrodesis

MeSH Terms

Animals
Ankle
Arthritis
Arthrodesis
Congenital Abnormalities
Flatfoot
Foot
Hallux
Hallux Valgus
Head
Humans
Joints
Metatarsal Bones
Metatarsus
Osteoarthritis
Retrospective Studies
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