Preoperative talar valgus deformity ≥ 15° is considered a contraindication for total ankle arthroplasty (TAA). We compared operative procedures and clinical outcomes of TAA in patients with talar valgus deformity ≥ 15° and < 15°. A matched cohort of patients similar for demographics and components used but differing in preoperative coronal-plane tibiotalar valgus deformity ≥ 15° (valgus, n = 50; 52% male, mean age 65.8 years (SD 10.3), mean body mass index (BMI) 29.4 (SD 5.2)) or < 15° (control, n = 50; 58% male, mean age 65.6 years (SD 9.8), mean BMI 28.7 (SD 4.2)), underwent TAA by one surgeon. Preoperative and postoperative radiographs, Ankle Osteoarthritis Scale (AOS) pain and disability and 36-item Short Form Health Survey (SF-36) version 2 scores were collected prospectively. Ancillary procedures, secondary procedures, and complications were recorded.Aims
Methods
We report the incidence and intensity of persistent
pain in patients with an otherwise uncomplicated total ankle replacement
(TAR). Arthroscopic debridement was performed in selected cases
and the clinical outcome was analysed. Among 120 uncomplicated TARs, there was persistent pain with
a mean visual analogue scale (VAS) of 2.7 (0 to 8). The intensity
of pain decreased in 115 ankles (95.8%). Exercise or walking for
more than 30 minutes was the most common aggravating factor (62
ankles, 68.1%). The character of the pain was most commonly described
as dull (50 ankles, 54.9%) and located on the medial aspect of the
joint (43 ankles, 47.3%). A total of seven ankles (5.8%) underwent subsequent arthroscopy.
These patients had local symptoms and a VAS for pain ≥ 7 on exertion.
Impingement with fibrosis and synovitis was confirmed. After debridement,
the median VAS decreased from 7 to 3 and six patients were satisfied.
The median VAS for pain and the American Orthopaedic Foot and Ankle
Society score of the ankles after debridement was similar to that
of the uncomplicated TARs (p = 0.496 and p = 0.066, respectively). Although TAR reduces the intensity of pain, residual pain is
not infrequent even in otherwise uncomplicated TARs and soft-tissue
impingement is the possible cause. Cite this article:
