Journal of Hand Surgery - June 2022 - S158

S158
Journal of Hand Surgery (Eur) 47(Supplement 1)
ligament (SLIL) injury. Restoration of radiological
parameters and range of motion were comparable
with the contralateral side, except ulnar variance
and wrist flexion. Lunate rim length probably contributes
to the difference between ulnar variance
after restoration. Otherwise, Fracture severity,
lunate rim length, and lunate subsidence did not
affect other radiological parameters and range of
motion. Grip strength could achieve 94.2% of the
contralateral side and was affected by the fracture
severity and presence of SLIL injury. Mean Modified
Mayo Wrist score and mean QuickDASH score were
80.4 and 6.72, respectively. Again, fracture severity
affected the MMWS rating and QuickDASH score.
Demographic parameters such as age, sex, injured
side, and mechanism of injury did not affect the
radiological and functional outcomes. There was no
loss of fixation for the critical volar lunate facet rim
fragment, volar carpal subluxation, subsequent iatrogenic
tendon rupture, and symptoms of flexor
tendon irritation in our patients. Only 1 symptomfree
patient had implant removal because of his
own request.
Conclusions: The risk of reduction loss and subsequent
disabling volar carpal subluxation can be minimized
by promptly identified and fixed the volar rim
fragments during operative treatment.
A-0990 Arthroscopic transosseous triangular
fibrocartilage complex foveal repair through an
extraarticular transverse bone tunnel
Ning Yu, Yansheng Wang, Hui Zhang, Fang Ye and
Zeming Le
Depantment of Hand Surgery, Central Hospital affiliated to
Shenyang Medical College, Shenyang, China
Objective: The aim of this study was to describe and
evaluate a novel arthroscopic transosseous triangular
fibrocartilage complex (TFCC) foveal avulsion
repair through an extraarticular transverse bone
tunnel.
Methods: The study cohort comprised 25 patients
with type IB TFCC injury and distal radioulnar joint
(DRUJ) instability diagnosed by wrist arthroscopy.
There were 17 males and 8 females, with an average
age of 34 years (range 12-46 years). The surgical
method is arthroscopic transosseous triangular
fibrocartilage complex foveal repair through an
extraarticular transverse bone tunnel. Main
Outcome assessment through the Mayo wrist
scores, disabilities of the arm, shoulder and hand
(DASH), visual analogue scale (VAS) for pain, and
DRUJ scores.
Results: Main Outcome assessment through the
Mayo wrist scores, disabilities of the arm, shoulder
and hand (DASH), visual analogue scale (VAS) for
pain and DRUJ scores. The average follow-up duration
was 18 months (range 12-36 months). The final
follow-up results were used to evaluate the surgical
outcome. The arthroscopic suture technique effectively
repaired the TFCC foveal avulsion in all
patients. In the 25 patients, the respective average
preoperative and postoperative DRUJ scores were
3.5 and 10, VAS scores were 5.0 and 1.0, DASH
scores were 36 and 9, and Mayo wrist scores were
87 and 60. the postoperative outcome was excellent
in 15 cases, good in 6 cases, fair in 3 cases, and poor
in 1 case.
Conclusions: Arthroscopic transosseous triangular
fibrocartilage complex foveal repair through an
extraarticular transverse bone tunnel was an viable
alternative for TFCC foveal repair.
A-0992 Ligament reconstruction suspension
arthroplasty (LRSA) using double looped PL tendon
graft with suture button for advanced thumb CMC
arthritis: Minimum 2 years follow-up
Osamu Soejima
Fukuoka Sanno Hospital, Fukuoka, Japan
Objective: The surgical technique of ligament reconstruction
suspension arthroplasty (LRSA) using
double looped palmaris longus (PL) tendon graft
with suture button has first been reported at JSSH,
FESSH and ASSH meetings in 2017. The purpose of
this study was to report the mid-term surgical
results of LRSA for treatment of advanced thumb
CMC joint arthritis.
Methods: 68 patients (75 thumbs) were treated using
this technique from November 2015 to August 2021
by a single surgeon, 40 thumbs in 35 patients (10
males and 25 females) with 2-years minimum
follow-up period were identified for this evaluation
(follow up ratio: 85.1%). The average age at surgery
was 64.6 years. According to the Eaton's classification,
2 thumbs were classified as stage II, 32 thumbs
as stage III, and remaining 6 thumbs as stage IV.
Visual analogue scale (VAS) for pain, thumb range
of motion, grip and pinch strengths and complications
were reviewed. As an index of the first metacarpal
subsidence, the trapezial space ratio which is
the height of the trapezial resection space divided by
the length of the first metacarpal was measured
from the preoperative, postoperative, and follow-up
radiographs. All patients completed DASH and
Journal of Hand Surgery - June 2022

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