Browse Health
Surgical Specialist, Orthopaedic Surgeon
13 years of experience
Video profile
Accepting new patients

Education ?

Medical School Score Rankings
University of Kansas (1997)
  • Currently 3 of 4 apples
Top 50%

Awards & Distinctions ?

Associations
American Board of Orthopaedic Surgery
American Society for Surgery of the Hand

Affiliations ?

Dr. Knoll is affiliated with 17 hospitals.

Hospital Affilations

Score

Rankings

  • Frisco Medical Center
    Orthopaedic Surgery
    5601 Warren Pkwy, Frisco, TX 75034
    • Currently 4 of 4 crosses
    Top 25%
  • Texas Health Presbyterian Hospital Plano
    Orthopaedic Surgery
    6200 W Parker Rd, Plano, TX 75093
    • Currently 4 of 4 crosses
    Top 25%
  • Medical Center Of Lewisville
    Orthopaedic Surgery
    500 W Main St, Lewisville, TX 75057
    • Currently 3 of 4 crosses
    Top 50%
  • Texas Health Harris Methodist Hospital Azle
    Orthopaedic Surgery
    108 Denver Trl, Azle, TX 76020
    • Currently 3 of 4 crosses
    Top 50%
  • Harris Methodist H E B
    Orthopaedic Surgery
    1600 Hospital Pkwy, Bedford, TX 76022
    • Currently 3 of 4 crosses
    Top 50%
  • Baylor Medical Center at Carrollton
    Orthopaedic Surgery
    4343 N Josey Ln, Carrollton, TX 75010
    • Currently 2 of 4 crosses
  • Ennis Regional Medical Center
    Orthopaedic Surgery
    803 W Lampasas St, Ennis, TX 75119
    • Currently 2 of 4 crosses
  • Medical Center Of Plano
    Orthopaedic Surgery
    3901 W 15th St, Plano, TX 75075
    • Currently 2 of 4 crosses
  • Baylor Regional Medical Center at Plano
    Orthopaedic Surgery
    4700 Alliance Blvd, Plano, TX 75093
    • Currently 2 of 4 crosses
  • Texas Health Harris Methodist Hospital Southwest Fort Worth
    Orthopaedic Surgery
    6100 Harris Pkwy, Fort Worth, TX 76132
    • Currently 1 of 4 crosses
  • Texas Health Plano
  • Harris Continued Care Hospital
    1301 Pennsylvania Ave, Fort Worth, TX 76104
  • Texas Health
  • Mfh Winnsboro
  • Baylor Medical Center At Frisco
  • Dallas Regional Med Center Galloway Campus
  • Harris Methodist - Springwood
    1608 Hospital Pkwy, Bedford, TX 76022
  • Publications & Research

    Dr. Knoll has contributed to 1 publication.
    Title Trans-scaphoid Perilunate Fracture Dislocations: Results of Screw Fixation of the Scaphoid and Lunotriquetral Repair with a Dorsal Approach.
    Date April 2006
    Journal The Journal of Hand Surgery
    Excerpt

    PURPOSE: To review the clinical and radiographic outcome of dorsal trans-scaphoid perilunate fracture-dislocations treated with screw fixation of the scaphoid and repair of the lunotriquetral ligament with bone anchors. METHODS: Twenty-five patients treated over an 11-year period for dorsal trans-scaphoid perilunate fracture-dislocations were reviewed retrospectively at a mean of 44.3 months. The mean age of the patients was 28.6 years, and 22 patients were men. Delay to surgery was 3.5 days. Five scaphoids had bone grafting from the distal radius. Six patients developed carpal tunnel syndrome requiring release. The functional outcome was determined by comparing the range of motion of the injured extremity with the uninjured extremity, grip strength, ability to return to pre-injury employment, and overall patient satisfaction. Radiographic evaluation comprised time to scaphoid union, any changes in the lunotriquetral interval, development of a volar intercalated segmental instability pattern, and any development of arthritis over time. RESULTS: Total range of motion achieved was 91% of the uninjured wrist and grip strength was 80%. Average extension was 54 degrees with an average flexion of 60 degrees . Ulnar deviation was 23 degrees with radial deviation averaging 18 degrees . The average supination was 76 degrees and the average pronation was 76 degrees . All scaphoids united primarily. The average time to union of the scaphoid was 16 weeks. For those scaphoids with bone grafting the union time was an average of 18.4 weeks. The average postreduction lunotriquetral gap was 1.8 +/- 0.4 mm. The average lunotriquetral gap at the last follow-up evaluation was 1.9 +/- 0.6 mm. None of the patients developed a volar intercalated segmental instability deformity. All but 2 patients returned to their pre-injury occupation. All patients, however, returned to some type of employment. Complications included 1 superficial pin track infection that resolved with removal of the pin and a short course of oral antibiotics. CONCLUSIONS: A dorsal approach to the wrist provides adequate exposure for reduction of carpal bones, internal fixation of the scaphoid, and lunotriquetral repair. Although perilunate fracture-dislocations are challenging problems to treat, all of the patients had acceptable pain relief and achieved sufficient range of motion and strength to return to gainful employment.

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