Mohamad Moussa

Dr. Mohamad Moussa

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 February 2024 in The American Journal of Sports Medicine
Verified
Journal Article
Open access
NLNicolas Lefèvre
Nicolas Lefèvre
MMMohamad Moussa
Mohamad Moussa
EVEugénie Valentin
Eugénie Valentin
AMAlain Meyer
Alain Meyer
YBYoann Bohu
Yoann Bohu
AHAlexandre Hardy
Alexandre Hardy
Background: Proximal hamstring complex injury (PHCI) is a common injury among professional athletes, particularly those participating in pivot contact sports. Previous studies have suggested that surgery can be effective in restoring function and allowing athletes to return to sport (RTS), but the factors influencing successful RTS have been less clear. Purpose: To assess RTS capabilities after surgical treatment of PHCI in professional athletes and to identify favorable predictors of RTS. Study Design: Case series; Level of evidence, 4. Methods: This study (2002-2022) was conducted on professional athletes who underwent surgical treatment for PHCI at a sports surgery center. The primary outcome of the study was the RTS capability, evaluated based on the rate of athletes’ return to their preinjury level of competition, time delay to RTS, and quality of RTS as measured using their level of performance and progression of scores on activity scales such as the Tegner Activity Scale (TAS) and University of California, Los Angeles (UCLA), scale. “Maintained performance” was defined as athletes returning to the same preinjury activity level (per the TAS and UCLA scale) and perceiving themselves to have maintained their performance. Secondary outcomes covered the potential RTS predictors and complication rate. The study distinguished 2 types of PHCI: proximal hamstring tendon avulsion injury (proximal rupture with empty footprint, or having a “positive dropped ice cream sign”) and complete proximal hamstring free tendon rupture (PHTR; proximal rupture without empty footprint, or having a “negative dropped ice cream sign”). Results: The study examined 64 professional athletes (mean age, 27.3 years; 82.8% male) undergoing surgery for PHCI. The RTS rate was 98.4%, with 78.1% of the athletes returning to their preinjury level of competition at 6.2 months (SD, 2.5 months). Twelve (19%) patients had returned to sport at an inferior level of competition, and 2 (3.1%) were unable to continue in their preinjury sport. Subgroup analysis revealed variation in RTS based on sport type, with the highest rate of return to preinjury performance found in athletes in handball and sports with splits (fencing, squash, and escalade; 100%) and soccer (95.2%). In the univariate analysis, male sex (hazard ratio [HR], 4.05; 95% CI, 1.45-11.3; P = .008), higher preinjury TAS score (HR, 1.27; 95% CI, 1.06-1.52; P = .011), injury involving the semimembranosus (HR, 4.84; 95% CI, 2.31-10.2; P < .001) or conjoint tendon (HR, 3.12; 95% CI, 1.55-6.25; P = .001), and PHTR (HR, 7.77; 95% CI, 3.54-17.0; P < .001) were significantly associated with a better postoperative level of competition. Multivariate analysis identified 3 favorable predictors of RTS with HRs of 2.91 (95% CI, 1.01-8.35; P = .047) for male sex, 3.86 (95% CI, 1.78-8.37; P < .001) for isolated semimembranosus injury, and 5.18 (95% CI, 2.24-12.0; P < .001) for PHTR. The complication rate was 4.7%. Conclusion: Favorable predictors of early RTS were male sex, isolated semimembranosus injury, and PHTR injuries. Registration: NCT02906865 (ClinicalTrials.gov identifier).

1 February 2025 in Orthopaedic Journal of Sports Medicine
Verified
Journal Article
Open access
AHAlexandre Hardy
Alexandre Hardy
KFKinan Freiha
Kinan Freiha
MMMohamad Moussa
Mohamad Moussa
EVEugénie Valentin
Eugénie Valentin
GRGauthier Rauline
Gauthier Rauline
RLRonny Lopes
Ronny Lopes
Background: Chronic ankle instability (CAI) develops in 20% to 40% of patients after ankle sprains because of inappropriate management or a premature return to sports (RTS). Patients become candidates for surgery when nonoperative treatment fails. The results of arthroscopic lateral ligament reconstruction have been shown to be excellent. However, there is no consensus on the RTS criteria in these cases. The Ankle-GO score, which has been validated in lateral ankle sprains, is an evidence-based protocol for RTS. Purpose: To evaluate the discriminant and predictive capacity of the Ankle-GO score for RTS after arthroscopic lateral ankle reconstruction. Study Design: Cohort study. Level of evidence, 2. Methods: This prospective multicenter cohort study, conducted between January 2022 and January 2023, evaluated patients with CAI who underwent arthroscopic anatomic lateral ankle ligament reconstruction using gracilis tendon autografts or allografts. The RTS rates at 4 and 6 months postoperatively were the primary and secondary outcomes, respectively. The evaluated variable at both timelines was the Ankle-GO score—a composite of 4 functional tests and 3 questionnaires. The study determined the discriminant validity of the Ankle-GO score for RTS at each timeline—Ankle-GO scores at 4 months for RTS at 4 months; Ankle-GO scores at 6 months for RTS at 6 months. The predictive capacity of the Ankle-GO score at 4 months for RTS at 6 months was also evaluated. Results: A total of 51 patients, with a mean age of 32.8 years, were included, of whom 23 (45%) had returned to sports at 4 months and 39 (76.5%) at 6 months. The mean Ankle-GO score was significantly higher in the group that returned to sports than in the group that did not (12 ± 4.7 vs 8.8 ± 4.7 at 4 months, respectively, P = .003; 16.8 ± 3.6 vs 11.3 ± 4.8 at 6 months, respectively, P = .002). The predictive capacity of the Ankle-GO score at 4 months for RTS at 6 months was good, with an area under the curve of 0.74 (95% CI, 0.58-0.90; P = .005). The optimal threshold was 6 (sensitivity, 95%; specificity, 50%). The odds ratio of RTS when surpassing the Ankle-GO cutoff score was 18.5 (95% CI, 3-113.95; P = .002). Conclusion: The Ankle-GO score is effective in discriminating the RTS status at 4 and 6 months after lateral ligament reconstruction of the ankle. In addition, the Ankle-GO score at 4 months was also moderately predictive of RTS at 6 months after surgery.

7 May 2021 in Cureus
Verified
Journal Article
Open access
SSSara Salman
Sara Salman
MKMariam Khouzami
Mariam Khouzami
MHMirvate Harb
Mirvate Harb
BSBouchra Saleh
Bouchra Saleh
MBMohammad O Boushnak
Mohammad O Boushnak
ZMZeina H. Mohsen
Zeina H. Mohsen
The aim of this retrospective study was to identify prevalence and risk factors for vitamin D inadequacy in a sunny Mediterranean country. Results of 2,547 patients aged 19 to >60 years were included in this study. Data were derived from the laboratory database at Rafik Hariri University Hospital, Beirut, Lebanon, over a period of two years (2016-2017). Data included patient’s age, gender, date of test, and vitamin D level. Females were questioned through phone call for marital status, parity, and veiling. The prevalence of vitamin D inadequacy was 83.5% overall, 86.4% in males, and 82.3% in females. At a cut-off of 20 ng/mL, vitamin D deficiency affected 63% of the studied population. A significant association was observed between vitamin D and age. The highest prevalence (71.2%) was found in females in the age group of 19-39 years, while no significant correlation with age was observed in males. Vitamin D levels were lower in veiled women (mean 25(OH)D = 17.9 ng/mL) compared to non-veiled women, although this difference was not significant. In addition, vitamin D inadequacy does not show a significant association with gender, parity, marital status, and season of the year. The high prevalence of vitamin D inadequacy in our study in both males and females of all age groups calls for urgent actions at the national level to increase awareness in the population and to prevent the serious complications of vitamin D deficiency in all patients, especially those who are at a high risk.

9 February 2024 in The American Journal of Sports Medicine
Verified
Journal Article
Open access
MMMohamad Moussa
Mohamad Moussa
NLNicolas Lefèvre
Nicolas Lefèvre
EVEugénie Valentin
Eugénie Valentin
ACAdam Coughlan
Adam Coughlan
AZAymen Zgolli
Aymen Zgolli
AHAlexandre Hardy
Alexandre Hardy
Background: Despite the well-established role of lateral extra-articular procedures (LEAPs) in reducing failure rates after anterior cruciate ligament (ACL) reconstruction (ACLR) in the adult population, similar in-depth research for the adolescent and pediatric population remains lacking. Purpose: To examine the effect of the LEAP augmentation on the rerupture rate after ACLR in patients aged <18 years. Study Design: Cohort study; Level of evidence, 3. Methods: This was a retrospective analysis of prospectively collected data from October 2012 to June 2020, involving adolescents .05). Both groups also showed comparable preoperative functional scores. A significantly lower preoperative ACL-RSI score was observed in the ACLR-alone group compared with the ACLR+LEAP group ( P = .0044). Graft rupture was significantly less common in the ACLR+LEAP group (2.5%) than in the ACLR-alone group (13.6%) ( P = .002). The attributable risk reduction for ACLR+LEAP was 11.1%, and the calculated number needed to treat was 9. Kaplan-Meier analysis showed significantly better rerupture-free survival at 5 years for the ACLR+LEAP group ( P = .001). Cox regression confirmed a 6-fold increased rerupture risk in the ACLR-alone group ( P = .004). At the final follow-up, despite similar IKDC, KOOS, Lysholm, and ACL-RSI values across both groups, the ACLR+LEAP group had a significantly higher Tegner score (7.2 vs 6.3; P = .0042). No significant differences were observed in RTS rates or sport level compared with preinjury states between the groups. Conclusion: ACLR+LEAP augmentation significantly reduced rerupture risk and facilitated higher postoperative activity levels in adolescents. Registration: NCT02511158 (ClinicalTrials.gov identifier).

20 May 2024 in Knee Surgery, Sports Traumatology, Arthroscopy
Verified
Journal Article
Open access
NLNicolas Lefèvre
Nicolas Lefèvre
ACAdam Coughlan
Adam Coughlan
EVEugénie Valentin
Eugénie Valentin
HSHasan B. Sezer
Hasan B. Sezer
YBYoan Bohu
Yoan Bohu
AHAlexandre Hardy
Alexandre Hardy
Purpose: The purpose of the study was to evaluate how the initial diagnostic tool used—specifically ultrasound (US) or magnetic resonance imaging (MRI)—for diagnosing proximal hamstring avulsion injury affects the delay before surgery and, secondarily, the outcomes of these injuries.Methods: This was a retrospective analysis of prospectively collected data (2012–2020). It targeted patients primarily treated for proximal hamstring avulsion injury. It included all patients with a preoperative US and/or MRI. Patients were divided into two groups based on the initial diagnostic tool used (US‐first vs. MRI‐first groups). The primary outcomes measure was the time from initial injury to surgical intervention (surgical delay). The secondary outcomes were the Parisien Hamstring Avulsion Score, as well as the activity level as measured by the University of California, Los Angeles (UCLA) Activity Scale and Tegner Activity Scale.Results: The analysis included 392 patients with a mean age of 43.8 ± 13.6 years for the MRI‐first group and 47.6 ± 12.0 years for US‐first group. Patients in the MRI‐first group had a significantly shorter median time from injury to surgery of 20.0 days (interquartile range [IQR]: 11.0–61.0) compared to 30 days (IQR: 18–74) in the US‐first group. At the final follow‐up (4.2 ± 2.2 years for the MRI‐first group and 5.1 ± 1.9 years for the US‐first group), the MRI‐first group had significantly higher mean Tegner Activity Scale and UCLA scores than the US‐first group: The Tegner Activity Scale was median 5 (IQR: 3–7) for the MRI‐first group versus median 4 (IQR: 2–6) for the US‐first group (p < 0.05). The UCLA scores were 7.9 ± 2.4 for the MRI‐first group compared to 7.3 ± 2.4 for the US‐first group (p < 0.05). This difference was more pronounced when comparing the MRI‐first group with the patient‐false negative initial ultrasound. No difference was found regarding the Parisien Hamstring Avulsion Score.Conclusion: MRI as the initial diagnostic tool for proximal hamstring avulsion injury is associated with a shorter time to surgery and better postoperative outcomes in Tegner Activity Scale and UCLA scores, compared to US.Level of Evidence: Level III.

25 September 2024 in Journal of Shoulder and Elbow Surgery
Verified
Journal Article
Closed access
PVPhilippe Valenti
Philippe Valenti
FZFrantzeska Zampeli
Frantzeska Zampeli
EKEfi Kazum
Efi Kazum
CMCarlos Murillo-Nieto
Carlos Murillo-Nieto
ANAhmad Nassar
Ahmad Nassar
MMMohamad Moussa
Mohamad Moussa