title: Radiographic Outcomes Following Lateral Column Lengthening With a Porous Titanium Wedge.
abstract: BACKGROUND
  Lateral column lengthening (LCL) is commonly utilized in treating stage II posterior tibialis tendon dysfunction. This study aimed to analyze the outcomes of LCL with porous titanium wedges compared to historic controls of iliac crest autograft and allograft. We hypothesized that the use of a porous titanium wedge would have radiographic improvement and union rates similar to those with the use of autograft and allograft in LCL.
  
  
  METHODS
  Between May 2009 and May 2014, 28 feet in 26 patients were treated with LCL using a porous titanium wedge. Of the 26 patients, 9 were males (34.6%). The average age for males was 43 years (range, 17.9-58.7), 48.7 years (range, 21-72.3) for females. Mean follow-up was 14.6 months. Radiographs were examined for correction of the flatfoot deformity and forefoot abduction. All complications were noted.
  
  
  RESULTS
  Radiographically, the patients had a significant deformity correction in the anteroposterior talo-first metatarsal angle, talonavicular coverage angle, lateral talo-first metatarsal angle, and calcaneal pitch. All but 1 patient (96%) had bony incorporation of the porous titanium wedge. The average preoperative visual analog scale pain score was 5; all patients but 3 (12%) had improvements in their pain score, with a mean change of 3.4.
  
  
  CONCLUSIONS
  LCL with porous titanium had low nonunion rates, improved radiographic correction, and pain relief.
  
  
  METHODS
  Level IV, case series.
authors: Duke University Medical Center, Durham, NC, USA cgross144@gmail.com.
authors: Christopher E
authors: CE
authors: Gross
authors: Duke University, Durham, NC, USA.
authors: Jeannie
authors: J
authors: Huh
authors: Duke University Medical Center, Durham, NC, USA.
authors: Joni
authors: J
authors: Gray
authors: Hospital for Special Surgery, New York, NY, USA.
authors: Constantine
authors: C
authors: Demetracopoulos
authors: Duke University Medical Center, Durham, NC, USA.
authors: James A
authors: JA
authors: Nunley
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures; D016062:Porosity; D037081:Posterior Tibial Tendon Dysfunction / Q000145:classification / Q000000981:diagnostic imaging / Q000601:surgery*; D019736:Prostheses and Implants; D011859:Radiography; D012189:Retrospective Studies; D014025:Titanium; D064232:Visual Analog Scale; D055815:Young Adult
chemical_list: D014025:Titanium
keywords: lateral column lengthening; porous titanium; posterior tibialis tendon dysfunction